DOCUMENT=            1564
 AUTH     = HILAL
 DT       = 06
 KN       = B40891402584
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3393813
002       B40891402584
010       CONFERENCE PAPER; THEORETICAL, EXPERIMENTAL.
100       MAGNETIC ADVANCED HYBRID (MAH) GUN.
200       HILAL, M.A.
220       APPL. SUPERCONDUCTIVITY CENTER, WISCONSIN UNIV., MADISON, WI, USA
300       4TH SYMPOSIUM ON ELECTROMAGNETIC LAUNCH TECHNOLOGY.
305       AUSTIN, TX, USA.  12-14 APRIL 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       JAN. 1989. VOL.25, NO.1, P.228-31, REF.1
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE FEASIBILITY OF THE MAH GUN IS ANALYTICALLY DEMONSTRATED FOR
400       VELOCITIES IN THE 4 TO 8 KM/S RANGE. THE GUN DESIGN REPRESENTS A
400       MODIFICATION OF CONVENTIONAL GUN. NO POWER SOURCE, POWER CONDITIONING
400       DEVICES, OR OPENING SWITCH ARE REQUIRED, WHICH MAKES THE MAH GUN
400       SUPERIOR TO OTHER ELECTROMAGNETIC GUNS. CHEMICAL ENERGY IS USED TO
400       ACCELERATE THE PROJECTILE TO HIGH VELOCITY THROUGH MAGNETIC
400       COLLISION. IN ADDITION, FAST FIRING IS POSSIBLE SINCE NO PULSED
400       ELECTRIC ENERGY IS REQUIRED. HIGH-TEMPERATURE SUPERCONDUCTORS WILL
400       HAVE SIGNIFICANT IMPACT ON THE GUN DESIGN, ESPECIALLY IF NO COOLING
400       IS REQUIRED.
500       ELECTROMAGNETIC LAUNCHERS.
510       CHEMICAL ENERGY; PROJECTILE ACCELERATION; HIGH TEMPERATURE
510       SUPERCONDUCTORS; MAGNETIC ADVANCED HYBRID GUN; MAH GUN; MAGNETIC
510       COLLISION; FAST FIRING.

DOCUMENT=            1565
 AUTH     = HULL
 DT       = 06
 KN       = B40891402586
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3393815
002       B40891402586
010       CONFERENCE PAPER; APPLICATIONS, EXPERIMENTAL.
100       APPLICATION OF SUPERCONDUCTING TECHNOLOGY TO EARTH-TO-ORBIT
100       ELECTROMAGNETIC LAUNCH SYSTEMS.
200       HULL, J.R. / CARNEY, L.M.
220       ARGONNE NAT. LAB., IL, USA
300       4TH SYMPOSIUM ON ELECTROMAGNETIC LAUNCH TECHNOLOGY.
305       AUSTIN, TX, USA.  12-14 APRIL 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       JAN. 1989. VOL.25, NO.1, P.243-8, REF.25
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHORS EXPLORE THE POTENTIAL BENEFITS THAT MAY OCCUR AS A RESULT
400       OF INCORPORATING SUPERCONDUCTORS, BOTH EXISTING AND THOSE CURRENTLY
400       UNDER DEVELOPMENT, IN ONE OR MORE PARTS OF A LARGE-SCALE
400       ELECTROMAGNETIC LAUNCH (EML) SYSTEM THAT IS CAPABLE OF DELIVERING
400       PAYLOADS FROM THE EARTH'S SURFACE TO SPACE. BOTH RAIL ACCELERATOR AND
400       COAXIAL MAGNETIC ACCELERATOR DEVICES ARE CONSIDERED, USING REFERENCE
400       CONCEPTS DEVELOPED UNDER PREVIOUS NASA STUDIES AS THE BASIS FOR
400       COMPARISON. THE USE OF SUPERCONDUCTORS FOR MANY OF THE EM LAUNCH
400       COMPONENTS WOULD RESULT IN LOWER SYSTEM LOSSES; CONSEQUENTLY,
400       REDUCTIONS IN THE SIZE AND NUMBER OF ENERGY STORAGE DEVICES WOULD BE
400       POSSIBLE. APPLIED HIGH-TEMPERATURE SUPERCONDUCTIVITY MAY EVENTUALLY
400       ENABLE NOVEL DESIGN CONCEPTS FOR ENERGY DISTRIBUTION AND SWITCHING.
400       IT IS CONCLUDED THAT ALL OF THESE TECHNICAL IMPROVEMENTS HAVE THE
400       POTENTIAL TO REDUCE SYSTEM COMPLEXITY AND LOWER PAYLOAD LAUNCH COSTS.
500       ELECTROMAGNETIC LAUNCHERS; SUPERCONDUCTIVITY.
510       SUPERCONDUCTING TECHNOLOGY; EARTH-TO-ORBIT ELECTROMAGNETIC LAUNCH
510       SYSTEMS; RAIL ACCELERATOR; COAXIAL MAGNETIC ACCELERATOR; SYSTEM
510       LOSSES; HIGH-TEMPERATURE SUPERCONDUCTIVITY; SYSTEM COMPLEXITY;
510       PAYLOAD LAUNCH COSTS.

DOCUMENT=            1566
 AUTH     = TALVACCH
 DT       = 02
 KN       = B40891402817
 LG       = ENGL
 SN       = ISSN 0148-6411
 YR       = 89
000       3394046
002       B40891402817
010       JOURNAL PAPER; BIBLIOGRAPHY, EXPERIMENTAL.
100       ELECTRICAL CONTACT TO SUPERCONDUCTORS.
200       TALVACCHIO, J.
220       WESTINGHOUSE RES. ? DEV. CENTER, PITTSBURGH, PA, USA
310       IEEE TRANS. COMPON. HYBRIDS MANUF. TECHNOL. (USA)
330       MARCH 1989. VOL.12, NO.1, P.21-31, REF.88
350       ISSN 0148-6411, CODEN ITTEDR
400       ELECTRICAL CONTACTS TO CONVENTIONAL SUPERCONDUCTORS AND
400       HIGH-TEMPERATURE OXIDE SUPERCONDUCTORS ARE REVIEWED. THE
400       TECHNOLOGICALLY IMPORTANT CONVENTIONAL SUPERCONDUCTORS ARE NB AND ITS
400       ALLOYS AND COMPOUNDS. THE OXIDE SUPERCONDUCTORS ARE TYPIFIED BY
400       YBA/SUB 2/CU/SUB 3/O/SUB 7/. THREE DISTINCT FORMS IN WHICH THE
400       SUPERCONDUCTOR CAN BE FABRICATED ARE CONSIDERED: THIN FILMS FOR
400       ELECTRONICS APPLICATIONS, AND MONOFILAMENTS OR TAPES FOR MEASUREMENTS
400       OF THE CURRENT-CARRYING CAPABILITY OF A SUPERCONDUCTING MATERIAL. THE
400       AUTHOR DISCUSSES THE PHYSICS OF INTERFACES WITH SUPERCONDUCTORS AND
400       LENGTH SCALES ON EACH SIDE OF THE INTERFACE OVER WHICH DEGRADATION OF
400       THE MATERIAL WILL AFFECT THE PERFORMANCE OF THE CONTACT. IT IS NOTED
400       THAT MATERIALS ISSUES ARISE, IN PART, BECAUSE THE CHARACTERISTIC
400       LENGTH SCALES ARE DIFFERENT FOR EACH SUPERCONDUCTOR AND FOR EACH TYPE
400       OF INTERFACE. CONTACTING THE HIGH-TEMPERATURE OXIDE SUPERCONDUCTORS
400       IS DIFFICULT NOT ONLY BECAUSE THE CHARACTERISTIC LENGTHS ARE SHORT,
400       0.1 TO 10 NM, BUT BECAUSE THEY ARE STRONGLY DEPENDENT ON CRYSTAL
400       ORIENTATION AND THE OXIDES TEND TO BE CHEMICALLY UNSTABLE WITHIN THAT
400       DISTANCE OF THE SURFACE.
500       BARIUM COMPOUNDS; ELECTRICAL CONTACTS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; NIOBIUM; NIOBIUM ALLOYS; NIOBIUM COMPOUNDS; YTTRIUM
500       COMPOUNDS.
510       ELECTRICAL CONTACT TO SUPERCONDUCTORS; HIGH TEMPERATURE
510       SUPERCONDUCTORS; CONVENTIONAL SUPERCONDUCTORS; PHYSICS OF INTERFACES;
510       MATERIALS ISSUES; CHARACTERISTIC LENGTH SCALES; HIGH-TEMPERATURE
510       OXIDE SUPERCONDUCTORS; CRYSTAL ORIENTATION; YBA/SUB 2/CU/SUB 3/O/SUB
510       7/; NB.
550       NB/INT NB/EL; NB/INT NB/SS; NB/INT NB/BIN; YBA2CU3O7/INT BA2/INT
550       CU3/INT BA/INT CU/INT O7/INT O/INT Y/INT YBA2CU3O7/SS BA2/SS CU3/SS
550       BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1567
 AUTH     = TENG
 DT       = 02
 KN       = B40891402827
 LG       = ENGL
 SN       = ISSN 0148-6411
 YR       = 89
000       3394056
002       B40891402827
010       JOURNAL PAPER; APPLICATIONS, PRACTICAL, EXPERIMENTAL.
100       METALLO-ORGANIC DECOMPOSITION FOR SUPERCONDUCTIVE YBA/SUB 2/CU/SUB
100       3/O/SUB 7-X/ FILM.
200       TENG, K.F.; WU, P.
220       DEPT. OF ELECTR. ENG., MISSISSIPPI STATE UNIV., MS, USA
310       IEEE TRANS. COMPON. HYBRIDS MANUF. TECHNOL. (USA)
330       MARCH 1989. VOL.12, NO.1, P.96-8, REF.6
350       ISSN 0148-6411, CODEN ITTEDR
400       POLYCRYSTALLINE Y-BA-CU-O THIN FILMS WERE DEPOSITED ON ALUMINA AND
400       SAPPHIRE SUBSTRATES BY USING A METALLO-ORGANIC DECOMPOSITION METHOD.
400       THE METALLO-ORGANIC PRECURSORS OF YTTRIUM, BARIUM, AND COPPER
400       METAL-CARBOXYLATES WERE SYNTHESIZED AND DISSOLVED IN A COMMON SOLVENT
400       TO MAKE THE INK. THE INK WAS DEPOSITED BY A MULTILAYER SPIN-ON
400       COATING TECHNIQUE FOLLOWED BY A THERMAL TREATMENT. THE TREATED FILMS
400       WERE POLYCRYSTALLINE, AND THE ELECTRICAL RESULTS SHOWED AN ONSET
400       TEMPERATURE OF ABOUT 90 K AND A ZERO RESISTANCE TEMPERATURE OF 75 K.
400       AFTER THERMAL DECOMPOSITION OF THE FILM IN AIR AT 925 DEGREES C AND
400       ANNEALING IN OXYGEN, A SUPERCONDUCTIVE YBA/SUB 2/CU/SUB 2/O/SUB 7-X/
400       FILM WAS OBTAINED. THE PRINCIPLE OF THIS METHOD IS DISCUSSED.
500       BARIUM COMPOUNDS; COATING TECHNIQUES; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; METALLO-ORGANIC DECOMPOSITION;
510       METALLO-ORGANIC PRECURSORS; MULTILAYER SPIN-ON COATING; THERMAL
510       TREATMENT; ONSET TEMPERATURE; ZERO RESISTANCE TEMPERATURE; THERMAL
510       DECOMPOSITION; 90 TO 75 K; 925 C; SUPERCONDUCTIVE YBA/SUB 2/CU/SUB
510       2/O/SUB 7-X/ FILM; POLYCRYSTALLINE Y-BA-CU-O THIN FILMS; AL/SUB
510       2/O/SUB 3/ SUBSTRATES.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS; AL2O3/SUR AL2/SUR AL/SUR O3/SUR
550       O/SUR AL2O3/BIN AL2/BIN AL/BIN O3/BIN O/BIN; YBA2CU2O/SS BA2/SS
550       CU2/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 7.5 E+01 TO 9.0 E+01 K; TEMPERATURE 1.20 E+03 K.

DOCUMENT=            1568
 AUTH     = CAI
 DT       = 02
 KN       = B40891402903
 LG       = ENGL
 SN       = ISSN 0195-9271
 YR       = 89
000       3394132
002       B40891402903
010       JOURNAL PAPER; EXPERIMENTAL.
100       AN EXPERIMENTAL STUDY OF JOSEPHSON EFFECT IN BULK YBACUO.
200       CAI, S.Z.; HOU, Y.S.; YU, E.X.; QIU, J.W.; LUO, W.A.
220       DEPT. OF ELECTR. ENG., FUDAN UNIV., CHINA
310       INT. J. INFRARED MILLIM. WAVES (USA)
330       FEB. 1989. VOL.10, NO.2, P.231-6, REF.3
350       ISSN 0195-9271, CODEN IJIWDO
400       THE AUTHORS HAVE OBSERVED JOSEPHSON EFFECT IN BULK YBACUO. THE SIZE
400       OF BULK IS 7.5*2.2*0.3 MM AND THE MICROWAVE FREQUENCY IS 9.82 GHZ IN
400       THEIR EXPERIMENT. SEVERAL MICROWAVE INDUCED STEPS CAN EASILY BE
400       OBSERVED. WHEN AN EXTERNAL MAGNETIC FIELD IS APPLIED TO THE BULK, THE
400       CRITICAL SUPERCURRENT AT ZERO VOLTAGE IS SUPPRESSED SIGNIFICANTLY. IT
400       HAS BEEN DEMONSTRATED THAT YBACUO BULK CAN BE SEEN AS A NETWORK OF
400       JOSEPHSON JUNCTIONS. AN EXPERIMENTAL STUDY OF JOSEPHSON EFFECT IN
400       BULK YBACUO AT MILLIMETER WAVE FREQUENCY IS IN PROGRESS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; JOSEPHSON EFFECT; MICROWAVE
510       FREQUENCY; MICROWAVE INDUCED STEPS; EXTERNAL MAGNETIC FIELD; CRITICAL
510       SUPERCURRENT; MILLIMETER WAVE FREQUENCY; 9.82 GHZ; YBACUO.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.
560       FREQUENCY 9.82 E+09 HZ.

DOCUMENT=            1569
 AUTH     = MATSUZAW
 DT       = 02
 KN       = B40891403254
 LG       = ENGL
 SN       = ISSN 0021-8979
 YR       = 89
000       3394483
002       B40891403254
010       JOURNAL PAPER; APPLICATIONS, EXPERIMENTAL.
100       HIGH-T/SUB C/ SUPERCONDUCTING LENSES FOR RELATIVISTIC ELECTRON BEAMS.
200       MATSUZAWA, H.; OHMORI, O.; YAMAZAKI, H.; UENO, J.; FURUMIZU, A.;
200       SAITO, A.; TAKAHASHI, T.; AKITSU, T.
220       FAC. OF ENG., YAMANASHI UNIV., KOFU, JAPAN
310       J. APPL. PHYS. (USA)
330       1 APRIL 1989. VOL.65, NO.7, P.2596-603, REF.39
350       ISSN 0021-8979, CODEN JAPIAU
400       NEW TYPES OF FOCUSING LENSES FOR RELATIVISTIC ELECTRON BEAMS (REBS)
400       ARE PROPOSED, AND PRELIMINARY EXPERIMENTAL RESULTS ARE OBTAINED. THE
400       PRINCIPLE OF THE LENSES IS AS FOLLOWS: WHEN REBS ARE INJECTED INTO
400       THE SMALL APERTURES OF CYLINDRICAL SUPERCONDUCTING LENSES,
400       SELF-MAGNETIC FIELDS OF THE REBS ARE PERFECTLY CONFINED IN A REGION
400       BETWEEN THE REBS AND THE WALL OF THE LENSES. THE REBS ARE FOCUSED BY
400       THOSE COMPRESSED FIELDS. THE SUPERIORITY OF SUPERCONDUCTING LENSES
400       WAS SHOWN USING FOILLESS REB DIODES WHICH WERE OPERATED AT 0.15-TORR
400       NE AND HAD HIGH-T/SUB C/, CYLINDRICAL SUPERCONDUCTOR ANODES MADE OF
400       Y-BA-CU-O COMPOUNDS (AXIAL LENGTHS OF 30 AND 145 MM AND AN INNER
400       DIAMETER OF 20 MM). THE FOCUSED REBS (0.8 KA, 270 KEV, PULSE WIDTHS
400       OF LESS THAN 5 NS) HAD MAIN BEAM DIAMETERS LESS THAN 2 MM.
500       BARIUM COMPOUNDS; ELECTRON BEAMS; ELECTRON LENSES; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; FOCUSING LENSES; RELATIVISTIC
510       ELECTRON BEAMS; Y-BA-CU-O COMPOUNDS.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1570
 AUTH     = CHEN
 DT       = 02
 KN       = B40891403255
 LG       = ENGL
 SN       = ISSN 0021-8979
 YR       = 89
000       3394484
002       B40891403255
010       JOURNAL PAPER; EXPERIMENTAL.
100       SCALING OF CRITICAL CURRENT DENSITY IN FIELD-ALIGNED GRAINS OF
100       (TL/SUB 0.75/BI/SUB 0.25/)/SUB 1.33/SR/SUB 1.33/CA/SUB 1.33/CU/SUB
100       2/O/SUB 6.67+ DELTA / THE '1212' PHASE.
200       CHEN, K.; MAHESWARAN, B. / HALDAR, P.; MARKIEWICZ, R.S.; GIESSEN,
200       B.C.
220       DEPT. OF PHYS., NORTHEASTERN UNIV., BOSTON, MA, USA
310       J. APPL. PHYS. (USA)
330       1 MAY 1989. VOL.65, NO.9, P.3574-8, REF.16
350       ISSN 0021-8979, CODEN JAPIAU
400       THE AUTHORS HAVE MEASURED INTRAGRAIN CRITICAL CURRENTS IN
400       FIELD-ORIENTED SAMPLES OF A RARE-EARTH-FREE HIGH-T/SUB C/
400       SUPERCONDUCTOR (TL/SUB 0.75/BI/SUB 0.25/)/SUB 1.33/SR/SUB 1.33/CA/SUB
400       1.33/CU/SUB 2/O/SUB 6.67+ DELTA /, THE '1212' PHASE. THE CRITICAL
400       CURRENT J/SUB C/ IS ANISOTROPIC. FOR FIELDS ORIENTED ALONG THE
400       CONDUCTING PLANES, A SIMPLE SCALING OF J/SUB C/ WITH FIELD IS FOUND.
400       THE CRITICAL CURRENT SCALES TO ZERO AT A FIELD H/SUB C2//SUP B/ (T)
400       WHICH IS IN GOOD AGREEMENT WITH THE FORM PREDICTED BY THE FLUX CREEP
400       THEORY.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); HIGH-TEMPERATURE SUPERCONDUCTORS; STRONTIUM
500       COMPOUNDS; THALLIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SCALING; CRITICAL CURRENT DENSITY;
510       FIELD-ALIGNED GRAINS; INTRAGRAIN CRITICAL CURRENTS; FIELD-ORIENTED
510       SAMPLES; HIGH-T/SUB C/ SUPERCONDUCTOR; (TL/SUB 0.75/BI/SUB 0.25/)/SUB
510       1.33/SR/SUB 1.33/CA/SUB 1.33/CU/SUB 2/O/SUB 6.67+ DELTA /.
550       TL0.75BI0.25SR1.33CA1.33CU2O/SS BI0.25/SS CA1.33/SS SR1.33/SS
550       TL0.75/SS CU2/SS BI/SS CA/SS CU/SS SR/SS TL/SS O/SS.

DOCUMENT=            1571
 AUTH     = WILLIAMS
 DT       = 02
 KN       = B40891403256
 LG       = ENGL
 SN       = ISSN 0021-8979
 YR       = 89
000       3394485
002       B40891403256
010       JOURNAL PAPER; EXPERIMENTAL.
100       THE EFFECT OF MASS AND POLE STRENGTH ON THE LEVITATION HEIGHT OF A
100       MAGNET OVER A SUPERCONDUCTOR.
200       WILLIAMS, R.; MATEY, J.R.; ARIE, Y. / RATHEE, J.
220       DAVID SARNOFF RES. CENTER, PRINCETON, NJ, USA
310       J. APPL. PHYS. (USA)
330       1 MAY 1989. VOL.65, NO.9, P.3583-5, REF.16
350       ISSN 0021-8979, CODEN JAPIAU
400       THE AUTHORS HAVE MEASURED THE EFFECT OF THE MASS AND POLE STRENGTH OF
400       A MAGNET ON ITS EQUILIBRIUM LEVITATION HEIGHT Z OVER A
400       SUPERCONDUCTING DISK OF YBA/SUB 2/CU/SUB 3/O/SUB 7/. A SIMPLE IMAGE
400       FORCE MODEL GIVES THE OBSERVED DEPENDENCE OF Z ON THE MASS AND POLE
400       STRENGTH, BUT NOT THE OBSERVED PROPORTIONALITY FACTOR.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       LEVITATION; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MASS; POLE STRENGTH; LEVITATION
510       HEIGHT; MAGNET; SUPERCONDUCTOR; SIMPLE IMAGE FORCE MODEL;
510       PROPORTIONALITY FACTOR; YBA/SUB 2/CU/SUB 3/O/SUB 7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1572
 AUTH     = MCKITTRI
 DT       = 02
 KN       = B40891403257
 LG       = ENGL
 SN       = ISSN 0021-8979
 YR       = 89
000       3394486
002       B40891403257
010       JOURNAL PAPER; EXPERIMENTAL.
100       MELTING AND SOLIDIFICATION BEHAVIOR OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
200       MCKITTRICK, J.; SASAYAMA, S.; MCHENRY, M.E.; KALONJI, G.; O'HANDLEY,
200       R.C.
220       DEPT. OF MATER. SCI. ? ENG., MIT, CAMBRIDGE, MA, USA
310       J. APPL. PHYS. (USA)
330       1 MAY 1989. VOL.65, NO.9, P.3662-6, REF.8
350       ISSN 0021-8979, CODEN JAPIAU
400       THE AUTHORS HAVE PREPARED THE SUPERCONDUCTING COMPOUND YBA/SUB
400       2/CU/SUB 3/O/SUB 7-X/ THROUGH A MELT PROCESS. SOLIDIFICATION OF THIS
400       MATERIAL AT COOLING RATES <10/SUP 5/ K/S YIELDS BACUO/SUB 2/ AND A
400       PREVIOUSLY UNREPORTED METASTABLE PHASE WHICH INDEXES TO A CUBIC
400       PATTERN WITH A LATTICE CONSTANT OF 0.701 NM. FASTER SOLIDIFICATION
400       RATES YIELD ONLY THE CUBIC PHASE AND GLASSY MATERIALS. ANNEALING
400       THESE MATERIALS IN O/SUB 2/ GIVES RISE TO A SINGLE-PHASE MATERIAL OF
400       THE YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ ORTHORHOMBIC STRUCTURE. THE
400       MATERIAL HAS ZERO RESISTANCE AT 91.6 K WITH A TRANSITION WIDTH OF 1.4
400       K. THE GRAIN SIZE OF THE MATERIALS AFTER ANNEALING AVERAGES 10 MU M
400       IN LENGTH AND 2-3 MU M IN WIDTH, AND THE GRAINS ARE COMPOSITIONALLY
400       HOMOGENEOUS. TWINS ARE SEEN WITH SPACINGS ON THE ORDER OF 20 NM. THE
400       IRREVERSIBILITY OF THE MAGNETIZATION CURVE AT LOW TEMPERATURES CAN BE
400       ASCRIBED TO STRONG FLUX PINNING MECHANISMS.
500       ANNEALING; BARIUM COMPOUNDS; FLUX PINNING; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MAGNETISATION; MELTING; SOLIDIFICATION;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MELTING; ANNEALING; TWINS;
510       SOLIDIFICATION BEHAVIOR; METASTABLE PHASE; CUBIC PATTERN; LATTICE
510       CONSTANT; GLASSY MATERIALS; SINGLE-PHASE MATERIAL; ORTHORHOMBIC
510       STRUCTURE; GRAIN SIZE; MAGNETIZATION CURVE; FLUX PINNING MECHANISMS;
510       91.6 K; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 9.16 E+01 K.

DOCUMENT=            1573
 AUTH     = ODA
 DT       = 02
 KN       = B40891403402
 LG       = ENGL
 SN       = ISSN 0031-9015
 YR       = 89
000       3394631
002       B40891403402
010       JOURNAL PAPER; EXPERIMENTAL.
100       MAGNETIC SUSCEPTIBILITY AND SUPERCONDUCTIVITY IN (LA/SUB 1-X/SR/SUB
100       X/)/SUB 2/CUO/SUB 4/.
200       ODA, M.; OHGURO, T.; YAMADA, N.; IDO, M.
220       DEPT. OF PHYS., FAC. OF SCI., HOKKAIDO UNIV., SAPPORO, JAPAN
310       J. PHYS. SOC. JPN. (JAPAN)
330       APRIL 1989. VOL.58, NO.4, P.1137-40
350       ISSN 0031-9015, CODEN JUPSAU
400       TEMPERATURE DEPENDENCE OF MAGNETIC SUSCEPTIBILITY CHI AND RESISTIVITY
400       IN (LA/SUB 1-X/SR/SUB X/)/SUB 2/CUO/SUB 4/ HAS BEEN EXAMINED IN A
400       COMPOSITION RANGE OF X<OR=0.15. FOR X<OR APPROXIMATELY=0.1, CHI
400       GRADUALLY DECREASES WITH LOWERING TEMPERATURE, ACCOMPANIED BY A BROAD
400       PEAK, WHILE FOR X>0.1 CHI MONOTONICALLY INCREASES WITH DECREASING
400       TEMPERATURE. SUPERCONDUCTING TRANSITION TEMPERATURE T/SUB C/ IS
400       OBSERVED TO BE HIGH IN SAMPLES WITH X<OR APPROXIMATELY=0.1, ALTHOUGH
400       T/SUB C/ IS DEPRESSED WITH A STEPLIKE BEHAVIOR BELOW X
400       APPROXIMATELY=0.08.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC
500       SUSCEPTIBILITY; STRONTIUM COMPOUNDS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; MAGNETIC SUSCEPTIBILITY;
510       RESISTIVITY; TRANSITION TEMPERATURE; (LA/SUB 1-X/SR/SUB X/)/SUB
510       2/CUO/SUB 4/.
550       LASRCUO4/SS CU/SS LA/SS O4/SS SR/SS O/SS.

DOCUMENT=            1574
 AUTH     = MIYAKAWA
 DT       = 02
 KN       = B40891403403
 LG       = ENGL
 SN       = ISSN 0031-9015
 YR       = 89
000       3394632
002       B40891403403
010       JOURNAL PAPER; EXPERIMENTAL.
100       TUNNELING CONDUCTANCE OF A BI/SUB 2/SR/SUB 2/CACU/SUB 2/O/SUB 8/-GAAS
100       JUNCTION ALONG THE C-AXIS.
200       MIYAKAWA, N.; SHIMADA, D.; KIDO, T.; TSUDA, N.
220       DEPT. OF APPL. PHYS., SCI. UNIV. OF TOKYO, JAPAN
310       J. PHYS. SOC. JPN. (JAPAN)
330       APRIL 1989. VOL.58, NO.4, P.1141-4
350       ISSN 0031-9015, CODEN JUPSAU
400       ANISOTROPY IN THE ENERGY GAP OF BI2212 WAS INVESTIGATED BY USING A
400       POINT CONTACT TUNNELING JUNCTION AND IT WAS NOTED THAT THERE WAS VERY
400       LITTLE ANISOTROPY. WHEN A GAAS NEEDLE WAS CONTACTED PERPENDICULAR TO
400       THE C-PLANE, AT LEAST TWO KINDS OF CONDUCTANCE CURVES WERE OBTAINED,
400       ONE WITH A GAP OF 42 MEV AND THE OTHER WITH A GAP OF 64 MEV. IN THE
400       LATTER, PHONON STRUCTURES EXTENDED TO A HIGHER VOLTAGE AND A
400       THREE-PHONON PROCESS WAS OBSERVED SIMILAR TO THE MULTIPHONON EXCHANGE
400       MODEL FOR SUPERCONDUCTIVITY.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; GALLIUM ARSENIDE;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; III-V SEMICONDUCTORS; LATTICE
500       PHONONS; STRONTIUM COMPOUNDS; SUPERCONDUCTING ENERGY GAP;
500       SUPERCONDUCTIVE TUNNELLING.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SEMICONDUCTOR; C-AXIS; ENERGY GAP;
510       POINT CONTACT TUNNELING JUNCTION; PHONON STRUCTURES; THREE-PHONON
510       PROCESS; MULTIPHONON EXCHANGE MODEL; BI/SUB 2/SR/SUB 2/CACU/SUB
510       2/O/SUB 8/-GAAS.
550       BI2SR2CACU2O8-GAAS/INT BI2SR2CACU2O8/INT GAAS/INT BI2/INT CU2/INT
550       SR2/INT AS/INT BI/INT CA/INT CU/INT GA/INT O8/INT SR/INT O/INT
550       BI2SR2CACU2O8/SS BI2/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS O8/SS SR/SS
550       O/SS GAAS/BIN AS/BIN GA/BIN.

DOCUMENT=            1575
 AUTH     = HATSUGAI
 DT       = 02
 KN       = B40891403404
 LG       = ENGL
 SN       = ISSN 0031-9015
 YR       = 89
000       3394633
002       B40891403404
010       JOURNAL PAPER; BIBLIOGRAPHY, THEORETICAL.
100       PAIRING OF FERMIONS COUPLED WITH SPIN-1/2 HEISENBERG SYSTEM-EXACT
100       DIAGONALIZATION STUDY FOR MECHANISM OF HIGH-T/SUB C/
100       SUPERCONDUCTIVITY.
200       HATSUGAI, Y.; IMADA, M.; NAGAOSA, N.
220       DEPT. OF APPL. PHYS., FAC. OF ENG., TOKYO UNIV., JAPAN
310       J. PHYS. SOC. JPN. (JAPAN)
330       APRIL 1989. VOL.58, NO.4, P.1347-71, REF.66
350       ISSN 0031-9015, CODEN JUPSAU
400       A COUPLED SPIN-FERMION SYSTEM IS INVESTIGATED AS A MODEL OF
400       HIGH-T/SUB C/ SUPERCONDUCTIVITY. BY THE EXACT DIAGONALIZATION
400       TECHNIQUE, THE BINDING ENERGY OF TWO FERMIONS AND SEVERAL CORRELATION
400       FUNCTIONS IN THE GROUND STATE ARE CALCULATED TO STUDY POSSIBLE
400       PAIRINGS OF HOLES IN ORBITALS OF P/SUB PI /, P/SUB SIGMA /, D(3Z/SUP
400       2/-R/SUP 2/) ETC. THE BOUND STATES OF FERMIONS ARE SUGGESTED IN TWO
400       REGIONS IN THE PARAMETER SPACE. IN THE SMALL TRANSFER REGION, IT IS
400       CAUSED BY LOCAL DEFECTS INDUCED IN THE ANTIFERROMAGNET AT THE FERMION
400       SITES. THE LARGER TRANSFER REGION IS CHARACTERIZED BY THE RELATIVELY
400       EXTENDED DISTURBANCE OF THE ANTIFERROMAGNETIC CORRELATION OF THE
400       SUBSTRATE SPINS, WHERE THE FERMION FORMS SINGLET-LIKE CLOUD AROUND
400       IT. THE LATTER IS A CHARACTERISTIC FEATURE OF THE ANTIFERROMAGNETIC
400       FERMION-SPIN COUPLING. THE RELEVANCE OF THE LATTER REGION TO
400       HIGH-T/SUB C/ SUPERCONDUCTIVITY IS DISCUSSED. THE POSSIBILITIES OF
400       BOUND STATES OF FERMIONS IN KONDO LATTICES ARE ALSO INVESTIGATED.
500       ANTIFERROMAGNETISM; FERMION SYSTEMS; HEISENBERG MODEL;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; KONDO EFFECT.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SPIN-1/2 HEISENBERG SYSTEM;
510       DIAGONALIZATION; COUPLED SPIN-FERMION; BINDING ENERGY; LOCAL DEFECTS;
510       ANTIFERROMAGNET; BOUND STATES; KONDO LATTICES.

DOCUMENT=            1576
 AUTH     = IKEDA
 DT       = 02
 KN       = B40891403405
 LG       = ENGL
 SN       = ISSN 0031-9015
 YR       = 89
000       3394634
002       B40891403405
010       JOURNAL PAPER; THEORETICAL.
100       RENORMALIZED FLUCTUATION THEORY OF RESISTIVE TRANSITION IN
100       HIGH-TEMPERATURE SUPERCONDUCTORS UNDER MAGNETIC FIELD.
200       IKEDA, R.; OHMI, T.; TSUNETO, T.
220       DEPT. OF PHYS., KYOTO UNIV., JAPAN
310       J. PHYS. SOC. JPN. (JAPAN)
330       APRIL 1989. VOL.58, NO.4, P.1377-86
350       ISSN 0031-9015, CODEN JUPSAU
400       THE AUTHORS ATTEMPT TO EXPLAIN THE BROAD RESISTIVE TRANSITION
400       OBSERVED IN HIGH-TEMPERATURE SUPERCONDUCTORS UNDER AN APPLIED
400       MAGNETIC FIELD BY A RENORMALIZED THEORY OF THE ORDER PARAMETER
400       FLUCTUATIONS USING A MODEL OF SUPERCONDUCTORS WITH LAYERED
400       STRUCTURES. THE RESULTS ARE COMPARED WITH SINGLE-CRYSTAL RESISTIVITY
400       DATA. THEY ARE IN GOOD AGREEMENT, AT LEAST IN THE HIGHER TEMPERATURE
400       SIDE OF THE RESISTIVE TRANSITION, WHERE THE THEORY IS EXPECTED TO BE
400       VALID.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; RESISTIVE TRANSITION; RENORMALIZED
510       THEORY; ORDER PARAMETER FLUCTUATIONS; LAYERED STRUCTURES.

DOCUMENT=            1577
 AUTH     = HIDA
 DT       = 02
 KN       = B40891403406
 LG       = ENGL
 SN       = ISSN 0031-9015
 YR       = 89
000       3394635
002       B40891403406
010       JOURNAL PAPER; THEORETICAL.
100       THEORY OF THE SPIN-WAVE MEDIATED HIGH-T/SUB C/ SUPERCONDUCTIVITY.
200       HIDA, K.
220       DEPT. OF ENG. SCI., FAC. OF ENG., HOKKAIDO UNIV., SAPPORO, JAPAN
310       J. PHYS. SOC. JPN. (JAPAN)
330       APRIL 1989. VOL.58, NO.4, P.1387-93, REF.26
350       ISSN 0031-9015, CODEN JUPSAU
400       A MODEL OF THE HIGH-T/SUB C/ OXIDE SUPERCONDUCTOR BASED ON THE
400       ANTIFERROMAGNETIC SPIN WAVE EXCHANGE IS INVESTIGATED. IT IS ASSUMED
400       THAT THE HOLES, WHICH ARE THE SUPERCONDUCTIVE CARRIERS, ARE MAINLY
400       DOPED INTO THE P/SUB PI / ORBITAL OF THE O ATOMS ON THE CUO PLANE. CU
400       SPINS ARE ASSUMED TO BE LOCALIZED AND TO BE IN THE ALMOST
400       ANTIFERROMAGNETIC STATE. IN THIS CASE, THE O HOLES CAN FORM COOPER
400       PAIRS EXCHANGING THE SPIN WAVE OF THE CU SPIN SYSTEM. THE TRANSITION
400       TEMPERATURE IS CALCULATED TAKING INTO ACCOUNT THE LIFETIME OF THE
400       SPIN WAVE AND THE RETARDATION EFFECT. THE CARRIER DENSITY DEPENDENCE
400       OF THE TRANSITION TEMPERATURE IS DISCUSSED. THE STRUCTURE OF THE
400       ENERGY GAP AND THE REAL SPACE PAIR-WAVE FUNCTION IS PRESENTED. THE
400       COOPER PAIR IS SHOWN TO HAVE D-LIKE SYMMETRY.
500       ANTIFERROMAGNETISM; CARRIER DENSITY; COOPER PAIRS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SPIN WAVES; SUPERCONDUCTING ENERGY GAP;
500       SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ANTIFERROMAGNETIC SPIN WAVE
510       EXCHANGE; TRANSITION TEMPERATURE; RETARDATION EFFECT; CARRIER
510       DENSITY; ENERGY GAP; PAIR-WAVE FUNCTION; COOPER PAIR.

DOCUMENT=            1578
 AUTH     = MORI
 DT       = 02
 KN       = B40891403407
 LG       = ENGL
 SN       = ISSN 0031-9015
 YR       = 89
000       3394636
002       B40891403407
010       JOURNAL PAPER; THEORETICAL.
100       SUPERCONDUCTIVITY WITH ON- AND INTER-SITE ATTRACTIONS IN A
100       TWO-DIMENSIONAL SQUARE LATTICE.
200       MORI, H.
220       DEPT. OF PHYS., FAC. OF SCI. ? TECHNOL., KEIO UNIV., YOKOHAMA, JAPAN
310       J. PHYS. SOC. JPN. (JAPAN)
330       APRIL 1989. VOL.58, NO.4, P.1394-402
350       ISSN 0031-9015, CODEN JUPSAU
400       THE AUTHOR INVESTIGATES SUPERCONDUCTIVITY IN A TWO-DIMENSIONAL SQUARE
400       LATTICE CHARACTERIZED BY BOTH AN ON-SITE ATTRACTIVE INTERACTION
400       (-V/SUB 1/) OF THE BCS TYPE AND AN INTER-SITE ATTRACTIVE INTERACTION
400       (-V/SUB 2/). HE EVALUATES THE PHASE DIAGRAM IN THE (V/SUB 1/, V/SUB
400       2/, T) SPACE, WHICH SHOWS THAT THERE APPEAR THREE KINDS OF
400       SUPERCONDUCTING STATES, I.E. A PURE S-STATE, A PURE D-STATE AND A
400       MIXED STATE, DEPENDING ON THE VALUES OF V/SUB 1/, V/SUB 2/, AND T.
400       FOR SOME APPROPRIATE VALUES OF V/SUB 1/ AND V/SUB 2/, TWO TYPES OF
400       TRANSITIONS TAKE PLACE ON THE REDUCTION OF TEMPERATURE; FROM A NORMAL
400       STATE TO A PURE STATE AND THEN FROM A PURE STATE TO A MIXED STATE. HE
400       CALCULATES SEVERAL PHYSICAL QUANTITIES IN ORDER TO STUDY THEIR
400       BEHAVIORS AT THESE TRANSITION POINTS. IMPLICATION OF THE PRESENT
400       THEORY IS DISCUSSED IN RELATION WITH HIGH-T/SUB C/ SUPERCONDUCTIVITY.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PHASE DIAGRAMS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; INTER-SITE ATTRACTIONS;
510       TWO-DIMENSIONAL SQUARE LATTICE; PHASE DIAGRAM; S-STATE; D-STATE;
510       MIXED STATE.

DOCUMENT=            1579
 AUTH     = FONTAINE
 DT       = 06
 KN       = B40891403538
 LG       = ENGL
 SN       = ISSN 0022-5088
 YR       = 89
000       3394767
002       B40891403538
010       CONFERENCE PAPER; EXPERIMENTAL.
100       VALENCE CHARACTERIZATION AND IN-SITU KINETICS OF OXYGEN UPTAKE AND
100       REMOVAL IN HIGH T/SUB C/ SUPERCONDUCTORS BY X-RAY ABSORPTION
100       SPECTROSCOPY.
200       FONTAINE, A.; FLANK, A.M.; DARTYGE, E.; LAGARDE, P.; TOLENTINO, H.;
200       TOURILLON, G. / BIANCONI, A.; KRILL, G.; MAURER, M.
220       LURE, ORSAY, FRANCE
300       18TH RARE EARTH RESEARCH CONFERENCE.
305       LAKE GENEVA, WI, USA.  12-16 SEPT. 1988.
310       J. LESS-COMMON MET. (SWITZERLAND)
330       1 APRIL 1989. VOL.148, P.97-108, REF.15
350       ISSN 0022-5088, CODEN JCOMAH
400       THE MAIN RESULTS OF X-RAY ABSORPTION SPECTROSCOPY (L/SUB III/ AND K)
400       ARE AS FOLLOWS: (I) THE EXISTENCE OF CU(III) AS A NECESSARY BUT NOT A
400       SUFFICIENT CONDITION FOR SUPERCONDUCTIVITY; (II) THE IDENTIFICATION
400       OF THIS VALENCE AS BEING MOD 3D/SUP 9/L) POLARIZED ALONG THE Z AXIS;
400       (III) STRONG CORRELATION AND ALMOST LOCALIZATION OF THE 3D ELECTRONS.
400       HENCE, THE ASSIGNMENT OF A VALENCE STATE TO A GIVEN COPPER SITE MAKES
400       SENSE. THE IDENTIFICATION OF CU(I) IS UNAMBIGUOUS BECAUSE OF THE
400       RELAXATION OF THE CORE HOLE WHICH AFFECTS THE FINAL STATE OF THE
400       DIPOLAR TRANSITION. MONOVALENT COPPER EXISTS FOR Y>6.5; (IV) THE
400       OXYGEN UPTAKE REQUIRES ELECTRON RESERVOIRS, WHICH APPEAR TO BE
400       MONOVALENT COPPERS AND THE OXYGEN P HOLES.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; VALENCY; X-RAY
500       ABSORPTION SPECTRA; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; VALENCE CHARACTERIZATION;
510       SEMICONDUCTING STATE; O UPTAKE; O REMOVAL; CERAMIC; ELECTRONIC
510       STRUCTURE; IN-SITU KINETICS; HIGH T/SUB C/ SUPERCONDUCTORS; X-RAY
510       ABSORPTION SPECTROSCOPY; CORRELATION; LOCALIZATION; 3D ELECTRONS;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1580
 AUTH     = KANG
 DT       = 06
 KN       = B40891403539
 LG       = ENGL
 SN       = ISSN 0022-5088
 YR       = 89
000       3394768
002       B40891403539
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ELECTRONIC STRUCTURE OF THE QUENCHED SUPERCONDUCTIVITY MATERIALS
100       Y/SUB 1-X/PR/SUB X/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
200       KANG, J.-S. / ALLEN, J.W.; SHEN, Z.-X.; ELLIS, W.P.; YEH, J.J.; LEE,
200       B.W.; MAPLE, M.B.; SPICER, W.E.; LINDAU, I.
220       DEPT. OF PHYS., MICHIGAN UNIV., ANN ARBOR, MI, USA
300       18TH RARE EARTH RESEARCH CONFERENCE.
305       LAKE GENEVA, WI, USA.  12-16 SEPT. 1988.
310       J. LESS-COMMON MET. (SWITZERLAND)
330       1 APRIL 1989. VOL.148, P.121-32, REF.42
350       ISSN 0022-5088, CODEN JCOMAH
400       THE SUPERCONDUCTIVITY OF THE Y/SUB 1-X/PR/SUB X/BA/SUB 2/CU/SUB
400       3/O/SUB 7- DELTA / SYSTEM IS QUENCHED AS X INCREASES. IT HAS BEEN
400       SPECULATED THAT PRASEODYMIUM HAS A VALENCE OF 4+, WHICH RESULTS IN
400       EXTRA CHARGE IN THE CU-O PLANES, AND CAUSES QUENCHING OF T/SUB C/. TO
400       STUDY THE ELECTRONIC STATE OF PRASEODYMIUM, THE VALENCE BAND RESONANT
400       PHOTOEMISSION OF THE Y/SUB 1-X/PR/SUB X/BA/SUB 2/CU/SUB 3/O/SUB 7-
400       DELTA / SYSTEM WAS MEASURED FOR X=0, 0.2, 0.4, 0.6, 0.8 AND 1.0. IT
400       WAS FOUND THAT THE PRASEODYMIUM VALANCE IS CLOSE TO 3+ FOR ALL X
400       VALUES AND THAT THE EXTRACTED PR 4F SPECTRAL WEIGHT HAS A COMPLEX
400       LINE SHAPE. THIS LINE SHAPE IMPLIES EXTENSIVE PR 4F-O 2P/CU 3D
400       HYBRIDIZATION WHICH PROBABLY CAUSES THE QUENCHING OF T/SUB C/ BY
400       DISRUPTING THE ELECTRONIC OR MAGNETIC STRUCTURE OF THE X=0 MATERIAL,
400       PERHAPS VIA PR-CU AND PR-O SUPEREXCHANGE INTERACTIONS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; PHOTOELECTRON
500       SPECTRA; PRASEODYMIUM COMPOUNDS; SPECTRAL LINE BREADTH; VALENCE
500       BANDS; VALENCY; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ELECTRONIC STRUCTURE; TRANSITION
510       TEMPERATURE; QUENCHED SUPERCONDUCTIVITY MATERIALS; VALENCE; CU-O
510       PLANES; ELECTRONIC STATE; VALENCE BAND RESONANT PHOTOEMISSION; PR 4F
510       SPECTRAL WEIGHT; LINE SHAPE; HYBRIDIZATION; SUPEREXCHANGE
510       INTERACTIONS; Y/SUB 1-X/PR/SUB X/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YPRBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS PR/SS O/SS Y/SS.

DOCUMENT=            1581
 AUTH     = SCHUTTLE
 DT       = 06
 KN       = B40891403540
 LG       = ENGL
 SN       = ISSN 0022-5088
 YR       = 89
000       3394769
002       B40891403540
010       CONFERENCE PAPER; THEORETICAL.
100       MAGNETIC INTERACTIONS AND CHARGE TRANSFER EXCITATIONS IN COPPER OXIDE
100       SUPERCONDUCTORS.
200       SCHUTTLER, H.-B. / FEDRO, A.J.
220       CENTER FOR SIMULATIONAL PHYS., GEORGIA UNIV., ATHENS, GA, USA
300       18TH RARE EARTH RESEARCH CONFERENCE.
305       LAKE GENEVA, WI, USA.  12-16 SEPT. 1988.
310       J. LESS-COMMON MET. (SWITZERLAND)
330       15 APRIL 1989. VOL.149, P.385-403, REF.40
350       ISSN 0022-5088, CODEN JCOMAH
400       THE AUTHORS DISCUSS RECENT THEORETICAL WORK ON THE THREE-BAND HUBBARD
400       MODEL FOR CUPRATE SUPERCONDUCTORS. FOR THE CHARGE-FLUCTUATION REGIME
400       OF THIS MODEL, THEY CONSIDER THE ROLE OF STRONG INTERSITE COULOMB
400       REPULSION AND DISCUSS THE FORMATION OF STRING QUASI-PARTICLES, AS
400       RECENTLY PROPOSED BY ONE OF THE AUTHORS. FOR THE SPIN-FLUCTUATION
400       REGIME, THE AUTHOR'S PRESENT NEW RESULTS OBTAINED BY EXACT NUMERICAL
400       DIAGONALIZATION OF FINITE-SIZED MODEL CLUSTERS. IN THE ABSENCE OF
400       DIRECT OXYGEN-OXYGEN HYBRIDIZATION, THE AUTHORS' RESULTS ARE
400       CONSISTENT WITH AN EFFECTIVE SINGLE-BAND APPROXIMATION, RECENTLY
400       PROPOSED BY ZHANG AND RICE (1988), IN WHICH EACH DOPING INDUCED EXTRA
400       HOLE AT THE OXYGEN SITES FORMS A STRONGLY BOUND SINGLET STATE WITH A
400       SINGLE COPPER SPIN. IN THE PRESENCE OF SUFFICIENTLY STRONG
400       OXYGEN-OXYGEN HYBRIDIZATION OF APPROPRIATE SIGN, A CROSS-OVER OCCURS
400       TO A FERMI LIQUID TYPE GROUNDSTATE IN WHICH THE EXTRA HOLES UNDERGO
400       ONLY A WEAK KONDO SCATTERING AT THE LOCALIZED COPPER SPINS.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; HUBBARD MODEL; QUASI-PARTICLES;
500       SPIN DYNAMICS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MAGNETIC INTERACTIONS; CHARGE
510       TRANSFER EXCITATIONS; THREE-BAND HUBBARD MODEL; CUPRATE
510       SUPERCONDUCTORS; CHARGE-FLUCTUATION REGIME; STRONG INTERSITE COULOMB
510       REPULSION; STRING QUASI-PARTICLES; SPIN-FLUCTUATION REGIME;
510       FINITE-SIZED MODEL CLUSTERS; HYBRIDIZATION; EFFECTIVE SINGLE-BAND
510       APPROXIMATION; FERMI LIQUID TYPE GROUNDSTATE; WEAK KONDO SCATTERING.
550       CU/SS O/SS.

DOCUMENT=            1582
 AUTH     = MAPLE
 DT       = 02
 KN       = B40891403541
 LG       = ENGL
 SN       = ISSN 0022-5088
 YR       = 89
000       3394770
002       B40891403541
010       JOURNAL PAPER; EXPERIMENTAL.
100       4F ELECTRON EFFECTS IN HIGH T/SUB C/RBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA
100       / (R=RARE EARTH) SUPERCONDUCTORS.
200       MAPLE, M.B.; FERREIRA, J.M.; HAKE, R.R.; LEE, B.W.; NEUMEIER, J.J.;
200       SEAMAN, C.L.; YANG, K.N.; ZHOU, H.
220       DEPT. OF PHYS., CALIFORNIA UNIV., SAN DIEGO, LA JOLLA, CA, USA
310       J. LESS-COMMON MET. (SWITZERLAND)
330       15 APRIL 1989. VOL.149, P.405-25, REF.69
350       ISSN 0022-5088, CODEN JCOMAH
400       EXPERIMENTS ON HIGH T/SUB C/ RBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
400       (R=RARE EARTH; DELTA APPROXIMATELY=0.1) COMPOUNDS HAVE REVEALED A
400       VARIETY OF INTERESTING EFFECTS THAT INVOLVE THE 4F ELECTRONS OF THE R
400       IONS. SCHOTTKY ANOMALIES DUE TO THE PARTIAL LIFING OF THE DEGENERACY
400       OF THE HUND'S RULES GROUND STATE MULTIPLETS OF THE R IONS BY THE
400       CRYSTALLINE ELECTRIC FIELD (CEF) ARE FOUND IN THE LOW TEMPERATURE
400       SPECIFIC HEAT. WITH SOME EXCEPTIONS, THE ANISOTROPY OF THE ROOM
400       TEMPERATURE PARAMAGNETIC SUSCEPTIBILITY CORRELATES WITH THE SIGN OF
400       THE SECOND ORDER STEVENS FACTOR OF THE CEF HAMILTONIAN. SPECIFIC HEAT
400       ANOMALIES DUE TO THE ANTIFERROMAGNETIC ORDERING OF THE R/SUP 3+/ IONS
400       IN RBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / COMPOUNDS WITH R IDENTICAL TO
400       ND, SM, DY AND ER CAN BE DESCRIBED WELL BY THE ANISOTROPIC
400       TWO-DIMENSIONAL ISING MODEL WITH AN EXCHANGE INTERACTION PARAMETER
400       RATIO THAT RANGES FROM APPROXIMATELY 50 FOR NEODYMIUM TO
400       APPROXIMATELY 4 FOR DYSPROSIUM. THE MAGNETIC ORDERING TEMPERATURES
400       AND SHAPES OF THE MAGNETIC SPECIFIC HEAT ANOMALIES CHANGE MARKEDLY
400       WHEN THE SUPERCONDUCTIVITY OF THE COMPOUNDS IS QUENCHED BY INCREASING
400       THE OXYGEN VACANCY CONCENTRATION TO DELTA >OR APPROXIMATELY=0.5,
400       INDICATING THAT RKKY AND/OR SUPEREXCHANGE INTERACTIONS ARE INVOLVED
400       IN THE MAGNETIC ORDERING OF THE R/SUP 3+/ IONS IN THESE MATERIALS.
400       THE ANOMALOUS PRESSURE DEPENDENCE OF T/SUB C/ AND THE NORMAL STATE
400       ELECTRON RESISTIVITY IN THE (Y/SUB 1-X/PR/SUB X/)BA/SUB 2/CU/SUB
400       3/O/SUB 7- DELTA / SYSTEM SUGGEST THAT THE PRASEODYMIUM 4F STATES ARE
400       HYBRIDIZED WITH VALENCE BAND STATES, WHICH MAY BE RESPONSIBLE FOR THE
400       LACK OF METALLIC BEHAVIOR AND SUPERCONDUCTIVITY IN PRBA/SUB 2/CU/SUB
400       3/O/SUB 7- DELTA /. THE COMPOUND PRBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
400       APPEARS TO EXHIBIT SOME FORM OF COMPLEX ANTIFERROMAGNETIC ORDER AT
400       APPROXIMATELY 16 K.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS; CRYSTAL
500       FIELD INTERACTIONS; EXCHANGE INTERACTIONS (ELECTRON);
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC SUPERCONDUCTORS; MAGNETIC
500       SUSCEPTIBILITY; RARE EARTH COMPOUNDS; SCHOTTKY ANOMALY; SPECIFIC HEAT
500       OF SOLIDS; SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTOR; RKKY INTERACTIONS; TRANSITION
510       TEMPERATURE; 4F ELECTRON EFFECTS; SCHOTTKY ANOMALIES; HUND'S RULES
510       GROUND STATE MULTIPLETS; CRYSTALLINE ELECTRIC FIELD; LOW TEMPERATURE
510       SPECIFIC HEAT; ANISOTROPY; PARAMAGNETIC SUSCEPTIBILITY; SECOND ORDER
510       STEVENS FACTOR; CEF HAMILTONIAN; ANTIFERROMAGNETIC ORDERING;
510       TWO-DIMENSIONAL ISING MODEL; EXCHANGE INTERACTION PARAMETER RATIO;
510       MAGNETIC ORDERING TEMPERATURES; VACANCY CONCENTRATION; SUPEREXCHANGE
510       INTERACTIONS; MAGNETIC ORDERING; ANOMALOUS PRESSURE DEPENDENCE;
510       NORMAL STATE ELECTRON RESISTIVITY; VALENCE BAND STATES; METALLIC
510       BEHAVIOR; (Y/SUB 1-X/PR/SUB X/)BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /;
510       PRBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /; NDBA/SUB 2/CU/SUB 3/O/SUB 7-
510       DELTA /; SMBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /; DYBA/SUB 2/CU/SUB
510       3/O/SUB 7- DELTA /; ERBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       NDBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS ND/SS O/SS; SMBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS SM/SS O/SS; DYBA2CU3O/SS BA2/SS CU3/SS
550       BA/SS CU/SS DY/SS O/SS; ERBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS ER/SS
550       O/SS; YPRBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS PR/SS O/SS Y/SS;
550       PRBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS PR/SS O/SS.

DOCUMENT=            1583
 AUTH     = ZHUANG
 DT       = 06
 KN       = B40891403542
 LG       = ENGL
 SN       = ISSN 0022-5088
 YR       = 89
000       3394771
002       B40891403542
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EFFECT OF BISMUTH DOPING ON THE STRUCTURE SUPERCONDUCTIVITY AND
100       MECHANICAL PROPERTIES OF Y-BA-CU-O.
200       ZHUANG JINHUA; SU WENHUI; LIU HONGJIAN; WANG YIFENG; ZHOU JIANSHI
220       DEPT. OF PHYS., JILIN UNIV., CHANGCHUN, CHINA
300       18TH RARE EARTH RESEARCH CONFERENCE.
305       LAKE GENEVA, WI, USA.  12-16 SEPT. 1988.
310       J. LESS-COMMON MET. (SWITZERLAND)
330       15 APRIL 1989. VOL.149, P.427-34, REF.11
350       ISSN 0022-5088, CODEN JCOMAH
400       A SERIES OF CERAMIC MATERIALS WITH NOMINAL COMPOSITIONS YBA/SUB
400       2/(CU/SUB 1-X/BI/SUB X/)/SUB 3/O/SUB 7-Y/(X=0 TO -0.9) HAS BEEN
400       PREPARED. FOR X<0.25, THE ZERO RESISTANCE TEMPERATURES (T/SUB CE/) OF
400       THE MATERIALS ARE STILL KEPT ABOVE 77 K. SAMPLE MICROHARDNESS AND
400       DENSITY ARE GREATLY INCREASED BY DOPING WITH BISMUTH, AND
400       SUPERCONDUCTIVITY IS QUITE STABLE. A NEW PHASE, BA/SUB 2/YBIO/SUB 6/,
400       HAVING AN ABO/SUB 3/-TYPE COMPOSITION AND A BIGGER CUBIC UNIT CELL,
400       APPEARS FOR X>OR=0.05. THIS PHASE IS PARAMAGNETIC ABOVE 77 K AND HAS
400       A POSSIBLE SPACE GROUP FM3M(225). THE DISPERSION HARDENING OF THE
400       SECOND PHASE OXIDE PARTICLES ENHANCES THE MICROHARDNESS OF THE
400       SUPERCONDUCTOR.
500       BARIUM COMPOUNDS; CERAMICS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC
500       COMPOUNDS; DENSITY OF SOLIDS; DISPERSION HARDENING; HARDNESS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; STRUCTURE SUPERCONDUCTIVITY;
510       MECHANICAL PROPERTIES; CERAMIC MATERIALS; ZERO RESISTANCE
510       TEMPERATURES; MICROHARDNESS; DENSITY; DOPING; ABO/SUB 3/-TYPE
510       COMPOSITION; CUBIC UNIT CELL; PARAMAGNETIC; SPACE GROUP; DISPERSION
510       HARDENING; SECOND PHASE OXIDE PARTICLES; BA/SUB 2/YBIO/SUB 6/;
510       YBA/SUB 2/(CU/SUB 1-X/BI/SUB X/)/SUB 3/O/SUB 7-Y/.
550       YBA2CUBIO/SS BA2/SS BA/SS BI/SS CU/SS O/SS Y/SS; BA2YBIO6/SS BA2/SS
550       BA/SS BI/SS O6/SS O/SS Y/SS.

DOCUMENT=            1584
 AUTH     = ALI
 DT       = 06
 KN       = B40891403543
 LG       = ENGL
 SN       = ISSN 0022-5088
 YR       = 89
000       3394772
002       B40891403543
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EFFECT OF FE AND NI SUBSTITUTION IN HIGH-T/SUB C/ Y-BA-CU-O
100       SUPERCONDUCTORS.
200       ALI, N.; ZHANG, X.; HILL, P.; LABROO, S.
220       DEPT. OF PHYS., SOUTHERN ILLINOIS UNIV., CARBONDALE, IL, USA
300       18TH RARE EARTH RESEARCH CONFERENCE.
305       LAKE GENEVA, WI, USA.  12-16 SEPT. 1988.
310       J. LESS-COMMON MET. (SWITZERLAND)
330       15 APRIL 1989. VOL.149, P.435-9, REF.12
350       ISSN 0022-5088, CODEN JCOMAH
400       EFFECTS OF IRON AND NICKEL SUBSTITUTIONS IN YBA/SUB 2/(CU/SUB
400       1-X/M/SUB X/)/SUB 3/O/SUB 7- DELTA / (WHEN M IDENTICAL TO FE AND NI)
400       HAVE BEEN INVESTIGATED THROUGH ELECTRICAL RESISTIVITY AND AC
400       SUSCEPTIBILITY MEASUREMENTS. THE SUPERCONDUCTING TRANSITION
400       TEMPERATURE (T/SUB C/) DECREASES LINEARLY WITH INCREASING IRON AND
400       NICKEL CONCENTRATIONS, WHILE THE WIDTH OF THE TRANSITION ( DELTA
400       T/SUB C/) INCREASES WITH IRON AND NICKEL CONCENTRATIONS. THE NORMAL
400       STATE RESISTIVITY REMAINS METALLIC FOR X=0.01 BUT FOR X>OR=0.05 THE
400       NORMAL STATE RESISTIVITY EXHIBITS A SEMICONDUCTING BEHAVIOR. THE
400       SEMICONDUCTING BEHAVIOR FOR SAMPLES WITH X>OR=0.05 SUGGESTS IT TO BE
400       THE PROPERTY OF THE TETRAGONAL STRUCTURE, SINCE IT HAS BEEN RECENTLY
400       ESTABLISHED, THAT YBA/SUB 2/(CU/SUB 1-X/M/SUB X/)/SUB 3/O/SUB 7-
400       DELTA / HAS A TETRAGONAL PHASE FOR X>OR=0.03 FOR M IDENTICAL TO FE
400       AND NI. THE DATA DO NOT INDICATE A CLEAR ROLE FOR THE EFFECT OF THE
400       MAGNETISM OF IRON AND NICKEL IONS IN DEPRESSING T/SUB C/.
500       BARIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MAGNETIC SUSCEPTIBILITY; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SUPERCONDUCTING TRANSITION
510       TEMPERATURE; ELECTRICAL RESISTIVITY; AC SUSCEPTIBILITY;
510       SUPERCONDUCTING TRANSITION TEMPERATURE; NORMAL STATE RESISTIVITY;
510       METALLIC; SEMICONDUCTING BEHAVIOR; TETRAGONAL STRUCTURE; MAGNETISM;
510       YBA/SUB 2/ (CU/SUB 1-X/FE/SUB X/)/SUB 3/O/SUB 7- DELTA /; YBA/SUB
510       2/(CU/SUB 1-X/NI/SUB X/)/SUB 3/O/SUB 7- DELTA /.
550       YBA2CUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS; YBA2CUNIO/SS BA2/SS
550       BA/SS CU/SS NI/SS O/SS Y/SS.

DOCUMENT=            1585
 AUTH     = LESSURE
 DT       = 06
 KN       = B40891403544
 LG       = ENGL
 SN       = ISSN 0022-5088
 YR       = 89
000       3394773
002       B40891403544
010       CONFERENCE PAPER; THEORETICAL.
100       ANISOTROPIC PARAMAGNETIC SUSCEPTIBILITY OF RBA/SUB 2/CU/SUB 3/O/SUB
100       7-X/ DUE TO THE CRYSTALLINE ELECTRIC FIELD: POINT CHARGE
100       CALCULATIONS.
200       LESSURE, H.S.; BOLTICH, E.B.; SANKAR, S.G.; WALLACE, W.E.; LAUGHLIN,
200       D.E.
220       MEMS DEPT., CARNEGIE MELLON UNIV., PITTSBURGH, PA, USA
300       18TH RARE EARTH RESEARCH CONFERENCE.
305       LAKE GENEVA, WI, USA.  12-16 SEPT. 1988.
310       J. LESS-COMMON MET. (SWITZERLAND)
330       15 APRIL 1989. VOL.149, P.441-6, REF.17
350       ISSN 0022-5088, CODEN JCOMAH
400       MAGNETIC SUSCEPTIBILITY MEASUREMENTS OF RBA/SUB 2/CU/SUB 3/O/SUB 7-X/
400       (WHERE R IDENTICAL TO RARE EARTH ION) INDICATE THAT THESE COMPOUNDS
400       ARE PARAMAGNETIC ABOVE T/SUB C/. WHEN R IDENTICAL TO DY, ER OR ND,
400       THERE APPEARS TO BE A CONSIDERABLE DEGREE OF ANISOTROPY IN THE
400       MAGNETIC SUSCEPTIBILITY BETWEEN THE C AXIS AND THE A-B PLANE. THIS
400       PROPERTY MAY HELP ALIGN THESE COMPOUNDS IN EXTERNAL MAGNETIC FIELDS.
400       THE NATURE AND EXTENT OF THIS ANISOTROPY IS OF MAJOR THEORETICAL
400       INTEREST. IN THIS PAPER, THE AUTHORS REPORT ON CALCULATIONS OF THE
400       MAGNETIC SUSCEPTIBILITY IN THE PARAMAGNETIC REGIME OF THE RBA/SUB
400       2/CU/SUB 3/O/SUB 7-X/ (WHERE R IDENTICAL TO DY, ER AND ND AND 0<X<1).
400       THE POINT CHARGE MODEL WAS EMPLOYED UTILIZING THE STEVENS OPERATOR
400       EQUIVALENTS. THE CALCULATIONS SHOW THAT THE CRYSTALLINE FIELD ACTING
400       ON THE 4F ELECTRONS OF THE RARE EARTH IONS PLAYS A REASONABLE ROLE IN
400       MODIFYING THE SUSCEPTIBILITY TO TEMPERATURES UP TO 300 K. THE
400       SUSCEPTIBILITY WAS ALSO FOUND TO BE ANISOTROPIC. THE CRYSTAL FIELD
400       COEFFICIENTS EVALUATED FROM THE POINT CHARGE MODEL APPEAR TO BE
400       CONSISTENT WITH EXPERIMENTAL RESULTS FOR R IDENTICAL TO DY, ER AND ND
400       AND FOR OXYGEN STOICHIOMETRY BETWEEN 6 AND 7.
500       CRYSTAL FIELD INTERACTIONS; DYSPROSIUM COMPOUNDS; ERBIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC SUSCEPTIBILITY; NEODYMIUM
500       COMPOUNDS; PARAMAGNETIC PROPERTIES OF SUBSTANCES.
510       ANISOTROPIC PARAMAGNETIC SUSCEPTIBILITY; HIGH TEMPERATURE
510       SUPERCONDUCTORS; CRYSTALLINE ELECTRIC FIELD; POINT CHARGE
510       CALCULATIONS; EXTERNAL MAGNETIC FIELDS; STEVENS OPERATOR EQUIVALENTS;
510       4F ELECTRONS; STOICHIOMETRY; DYBA/SUB 2/CU/SUB 3/O/SUB 7-X/; ERBA/SUB
510       2/CU/SUB 3/O/SUB 7-X/; NDBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       DYBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS DY/SS O/SS; ERBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS ER/SS O/SS; NDBA2CU3O/SS BA2/SS CU3/SS
550       BA/SS CU/SS ND/SS O/SS.

DOCUMENT=            1586
 AUTH     = XU
 DT       = 06
 KN       = B40891403545
 LG       = ENGL
 SN       = ISSN 0022-5088
 YR       = 89
000       3394774
002       B40891403545
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ULTRASONIC ATTENUATION IN SINTER-FORGED HIGH T/SUB C/ SUPERCONDUCTOR
100       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
200       XU, M.-F.; BEIN, D.; HONG, Y.; SARMA, B.K.; LEVY, M. / ZHAO, Z.;
200       ADENWALLA, S.; MOREAU, A.; ROBINSON, Q.; JOHNSON, D.L.; HWU, S.J.;
200       POEPPELMEIER, K.R.; KETTERSON, J.B.
220       DEPT. OF PHYS., WISCONSIN UNIV., MILWAUKEE, WI, USA
300       18TH RARE EARTH RESEARCH CONFERENCE.
305       LAKE GENEVA, WI, USA.  12-16 SEPT. 1988.
310       J. LESS-COMMON MET. (SWITZERLAND)
330       15 APRIL 1989. VOL.149, P.447-50, REF.3
350       ISSN 0022-5088, CODEN JCOMAH
400       THE AUTHORS HAVE MEASURED ULTRASONIC ABSORPTION IN SINTER-FORGED HIGH
400       T/SUB C/ YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /. OWING TO THE
400       ANISOTROPIC PROPERTIES OF THE SINTER-FORGED SAMPLES, LONGITUDINAL
400       ULTRASONIC ATTENUATION MEASUREMENTS SHOWED VERY STRONG ANISOTROPY
400       WHEN WAVES WERE PROPAGATED PARALLEL AND PERPENDICULAR TO THE FORGING
400       AXIS. SOUND ABSORPTION WAS FOUND TO INCREASE WITH DECREASING
400       TEMPERATURE FOR SHEAR WAVES TRAVELLING PARALLEL TO THE FORGING AXIS.
500       BARIUM COMPOUNDS; CERAMICS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       ULTRASONIC ABSORPTION; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SINTER-FORGED; HIGH T/SUB C/
510       SUPERCONDUCTOR; ULTRASONIC ABSORPTION; ANISOTROPIC PROPERTIES;
510       LONGITUDINAL ULTRASONIC ATTENUATION; SHEAR WAVES; YBA/SUB 2/CU/SUB
510       3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1587
 AUTH     = ZHAO
 DT       = 06
 KN       = B40891403546
 LG       = ENGL
 SN       = ISSN 0022-5088
 YR       = 89
000       3394775
002       B40891403546
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ELASTIC CONSTANT ANOMALIES IN SINTER-FORGED HIGH-T/SUB C/
100       SUPERCONDUCTOR YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
200       ZHAO, Z.; ADENWALLA, S.; MOREAU, A.; KETTERSON, J.B. / ROBINSON, Q.;
200       JOHNSON, D.L.; HWU, S.J.; POEPPELMEIER, K.R.; XU, M.-F.; HONG, T.;
200       LEVY, M.; SARMA, B.K.
220       DEPT. OF PHYS. ? ASTRON., NORTHWESTERN UNIV., EVANSTON, IL, USA
300       18TH RARE EARTH RESEARCH CONFERENCE.
305       LAKE GENEVA, WI, USA.  12-16 SEPT. 1988.
310       J. LESS-COMMON MET. (SWITZERLAND)
330       15 APRIL 1989. VOL.149, P.451-4, REF.6
350       ISSN 0022-5088, CODEN JCOMAH
400       THE ULTRASOUND VELOCITY IN THE SINTER-FORGED YBA/SUB 2/CU/SUB 3/O/SUB
400       7- DELTA / SUPERCONDUCTOR WAS MEASURED AND THE RESULTS SHOWED EVIDENT
400       ANOMALIES AS WELL AS ANISOTROPIES. BOTH LONGITUDINAL AND SHEAR WAVE
400       VELOCITY ALONG THE C AXIS (THE FORGING AXIS) SHOWED A DISTINCT
400       THERMAL HYSTERESIS FROM 65 K TO 260 K. THE VELOCITY CHANGE DELTA V/V
400       FROM ROOM TEMPERATURE TO 4 K WAS 1.5%. THE SOUND VELOCITY ALONG THE
400       'BASAL PLANE' REACHED A MAXIMUM AROUND 160 K. NO DISTINCT THERMAL
400       HYSTERESIS WAS OBSERVED. DELTA V/V FROM ROOM TEMPERATURE TO 4 K WAS
400       1%. ALL OF THESE VELOCITIES WERE MEASURED WHILE SWEEPING THE MAGNETIC
400       FIELD UP TO 9 T AT FIXED TEMPERATURES OF 4 K AND 86 K RESPECTIVELY.
400       NO VELOCITY CHANGE WAS OBSERVED. THE SHEAR WAVE VELOCITY BEHAVED
400       SIMILARLY AT 9 T DURING THE THERMAL CYCLING BETWEEN ROOM TEMPERATURE
400       AND 4 K.
500       BARIUM COMPOUNDS; CERAMICS; ELASTIC CONSTANTS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; ULTRASONIC VELOCITY; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ELASTIC CONSTANT ANOMALIES;
510       LONGITUDINAL WAVE VELOCITY; SINTER-FORGED; HIGH-T/SUB C/
510       SUPERCONDUCTOR; ULTRASOUND VELOCITY; ANISOTROPIES; SHEAR WAVE
510       VELOCITY; THERMAL HYSTERESIS; THERMAL CYCLING; 4 TO 300 K; YBA/SUB
510       2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 4.0 E+00 TO 3.0 E+02 K.

DOCUMENT=            1588
 AUTH     = CHE
 DT       = 02
 KN       = B40891403621
 LG       = ENGL
 SN       = ISSN 0022-2461
 YR       = 89
000       3394850
002       B40891403621
010       JOURNAL PAPER; EXPERIMENTAL.
100       COMPOSITION AND SUPERCONDUCTIVITY IN BI-SR-CA-CU-O AND SUBSTITUTED
100       SYSTEMS.
200       CHE, G.C.; LIANG, J.K.; CHEN, W.; ZHANG, D.N.; JIA, S.L.; NI, Y.M. /
200       XIE, S.S.; ZHAO, Z.X.
220       INST. OF PHYS., ACAD. SINICA, BEIJING, CHINA
310       J. MATER. SCI. (UK)
330       MAY 1989. VOL.24, NO.5, P.1725-8, REF.6
350       ISSN 0022-2461, CODEN JMTSAS
400       THE COMPOSITION OF THE SUPERCONDUCTING PHASE BI/SUB 4/(SR/SUB
400       3+OR-X/CA/SUB 3-OR+X/)/SUB SIGMA =6/CU/SUB 4/O/SUB 16/, HAS BEEN
400       DETERMINED BY MEANS OF A SYSTEMATIC INVESTIGATION OF THE RELATIONSHIP
400       BETWEEN COMPOSITION AND SUPERCONDUCTIVITY, AND PHASE ANALYSIS. THE
400       SUPERCONDUCTING PHASE BELONGS TO THE TETRAGONAL SYSTEM WITH A=0.3825
400       NM, C=3.082 NM, SPACE GROUP (S.G.) 14/MMM. THE EFFECT OF STRONTIUM
400       AND CALCIUM CONTENTS IN THE BI(SR/SUB 1+OR-X/CA/SUB 1-OR+X/)/SUB
400       SIGMA =2/CU/SUB 2/O/SUB 5.5/ SYSTEM AND SUBSTITUTION IN THE BU/SUB
400       1-X/A/SUB X/SRCACU/SUB 2/O/SUB 5.5/ (A=V, GD, Y) AND BISRCA/SUB
400       1-X/PB/SUB X/CU/SUB 2/O/SUB 5.5/ SYSTEMS ON SUPERCONDUCTIVITY, HAS
400       BEEN INVESTIGATED. IN THE BI-SR-CA-CU-O SYSTEM, THERE ARE TWO
400       SUPERCONDUCTING PHASES CORRESPONDING TO TRANSITION TEMPERATURE OF 110
400       AND 80 K, RESPECTIVELY. THE DIFFERENCE BETWEEN THE TWO
400       SUPERCONDUCTING PHASES MAY BE DUE TO THE STACKING DIFFERENCE OF ATOMS
400       ALONG THE C DIRECTION IN THE STRUCTURE AND THEIR OXYGEN CONTENT.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LATTICE CONSTANTS; SPACE GROUPS; STRONTIUM
500       COMPOUNDS; SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; LATTICE CONSTANTS; SUBSTITUTED
510       SYSTEMS; COMPOSITION; SUPERCONDUCTING PHASE; COMPOSITION; PHASE
510       ANALYSIS; TETRAGONAL SYSTEM; SPACE GROUP; TRANSITION TEMPERATURE;
510       STACKING DIFFERENCE; 80 K; 110 K; BI-SR-CA-CU-O; BISRCA/SUB
510       1-X/PB/SUB X/CU/SUB 2/O/SUB 5.5/; BI/SUB 1-X/V/SUB X/SRCACU/SUB
510       2/O/SUB 5.5/; BI/SUB 1-X/GD/SUB X/SRCACU/SUB 2/O/SUB 5.5/; BI/SUB
510       1-X/Y/SUB X/SRCACU/SUB 2/O/SUB 5.5/.
550       BIVSRCACU2O5.5/SS O5.5/SS CU2/SS BI/SS CA/SS CU/SS SR/SS O/SS V/SS;
550       BIGDSRCACU2O5.5/SS O5.5/SS CU2/SS BI/SS CA/SS CU/SS GD/SS SR/SS O/SS;
550       BIYSRCACU2O5.5/SS O5.5/SS CU2/SS BI/SS CA/SS CU/SS SR/SS O/SS Y/SS;
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS; BISRCAPBCU2O5.5/SS O5.5/SS
550       CU2/SS BI/SS CA/SS CU/SS PB/SS SR/SS O/SS.
560       TEMPERATURE 8.0 E+01 K; TEMPERATURE 1.1 E+02 K.

DOCUMENT=            1589
 AUTH     = KOMORI
 DT       = 02
 KN       = B40891403622
 LG       = ENGL
 SN       = ISSN 0022-2461
 YR       = 89
000       3394851
002       B40891403622
010       JOURNAL PAPER; EXPERIMENTAL.
100       CHEMICAL DURABILITY OF A SUPERCONDUCTING OXIDE YBA/SUB 2/CU/SUB
100       3/O/SUB X/ IN AQUEOUS SOLUTIONS OF VARYING PH VALUES.
200       KOMORI, K.; KOZUKA, H.; SAKKA, S.
220       INST. FOR CHEM. RES., KYOTO UNIV., JAPAN
310       J. MATER. SCI. (UK)
330       MAY 1989. VOL.24, NO.5, P.1889-94, REF.9
350       ISSN 0022-2461, CODEN JMTSAS
400       THE CHEMICAL DURABILITY OF A SUPERCONDUCTING OXIDE YBA/SUB 2/CU/SUB
400       3/O/SUB X/ IN THE AQUEOUS SOLUTION WAS INVESTIGATED AS A FUNCTION OF
400       PH VALUE BY MEASURING THE AMOUNT OF LEACHING OF THE CATIONS IN THE
400       SOLUTION BY INDUCTIVELY COUPLED PLASMA ANALYSIS. THE CHEMICAL
400       DURABILITY OF YBA/SUB 2/CU/SUB 3/O/SUB X/ WAS VERY LOW IN HIGHLY
400       ACIDIC SOLUTIONS OF PH CA. 1, WHERE THE CATIONS WERE DISSOLVED IN THE
400       SAME CATION RATIO AS THAT OF THE COMPOUND. IN AN ION-EXCHANGED WATER
400       AND NAOH SOLUTION, BARIUM IONS WERE LEACHED OUT PREFERENTIALLY AND
400       ALMOST NO YTTRIUM AND COPPER IONS WERE LEACHED OUT. WHEN NH/SUB 4/OH
400       WAS USED AS A BASIC REAGENT, THE AMOUNTS OF BARIUM IONS LEACHED OUT
400       WERE HIGHER THAN IN THE NAOH SOLUTION OF THE SAME PH VALUE AND THE
400       DISSOLUTION OF COPPER IONS WAS OBSERVED, UNLIKE IN THE NAOH SOLUTION
400       OF THE SAME PH VALUE. THESE OBSERVATIONS WERE EXPLAINED IN TERMS OF
400       THE CHEMICAL STABILITY OF INDIVIDUAL OXIDE COMPONENTS.
500       BARIUM COMPOUNDS; DISSOLVING; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SOLUBILITY; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; PH VALUE DEPENDENCE; CATION
510       LEACHING; AQUEOUS SOLUTIONS; CHEMICAL DURABILITY; SUPERCONDUCTING
510       OXIDE; INDUCTIVELY COUPLED PLASMA ANALYSIS; DISSOLUTION; CHEMICAL
510       STABILITY; OXIDE COMPONENTS; YBA/SUB 2/CU/SUB 3/O/SUB X/; H/SUB
510       2/O-NAOH; NH/SUB 4/OH-H/SUB 2/O.
550       H2ONAOH/SS H2/SS NA/SS OH/SS H/SS O/SS; NH4OHH2O/SS H2/SS H4/SS OH/SS
550       H/SS N/SS O/SS; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1590
 AUTH     = STEGLICH
 DT       = 02
 KN       = B40891403623
 LG       = ENGL
 SN       = ISSN 0022-3697
 YR       = 89
000       3394852
002       B40891403623
010       JOURNAL PAPER; BIBLIOGRAPHY, REVIEW.
100       HEAVY FERMIONS.
200       STEGLICH, F.
220       INST. FUR FESTKORPERPHYS., TECH. HOCHSCHULE DARMSTADT, WEST GERMANY
310       J. PHYS. CHEM. SOLIDS (UK)
330       1989. VOL.50, NO.3, P.225-32, REF.55
350       ISSN 0022-3697, CODEN JPCSAW
400       HEAVY-FERMION SYSTEMS ARE LANTHANIDE- AND ACTINIDE-BASED
400       INTERMETALLICS THAT, WHEN COOLED TO BELOW T APPROXIMATELY=1 K,
400       DEVELOP HIGH CARRIER MASSES (M*/M/SUB EL/ APPROXIMATELY 100),
400       INDICATING EXTREMELY STRONG ELECTRONIC CORRELATIONS. A NUMBER OF
400       EXOTIC GROUND-STATE PROPERTIES, E.G. COHERENT FERMI-LIQUID,
400       SUPERCONDUCTING, AND MAGNETICALLY ORDERED ONES HAVE BEEN DISCOVERED
400       FOR THESE MATERIALS. A VERY STRONG AND TEMPERATURE-DEPENDENT
400       INTERACTION BETWEEN THE CONDUCTION ELECTRONS AND THE PARTIALLY FILLED
400       F SHELLS, REMINISCENT OF THE 'KONDO EFFECT', IS UNDERLYING MOST OF
400       THE OBSERVED HEAVY-FERMION PHENOMENA. THE AUTHORS EXAMINE THE THEORY
400       AND ABOVE-MENTIONED PROPERTIES OF SOME HEAVY FERMION SYSTEMS.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; HEAVY FERMION
500       SUPERCONDUCTORS; HEAVY FERMION SYSTEMS; REVIEWS.
510       HEAVY FERMION SYSTEMS; REVIEW; HEAVY FERMION SUPERCONDUCTORS;
510       MAGNETIC PROPERTIES; KONDO EFFECT; STRONG ELECTRONIC CORRELATIONS;
510       EXOTIC GROUND-STATE PROPERTIES; COHERENT FERMI-LIQUID; CONDUCTION
510       ELECTRONS; PARTIALLY FILLED F SHELLS; UBE/SUB 13/; UPT/SUB 3/;
510       CECU/SUB 2/SI/SUB 2/.
550       UBE13/BIN BE13/BIN BE/BIN U/BIN; UPT3/BIN PT3/BIN PT/BIN U/BIN;
550       CECU2SI2/SS CU2/SS SI2/SS CE/SS CU/SS SI/SS.

DOCUMENT=            1591
 AUTH     = PONOSOV
 DT       = 02
 KN       = B40891403746
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3394975
002       B40891403746
010       JOURNAL PAPER; EXPERIMENTAL.
100       EFFECT OF OXYGEN CONCENTRATION ON THE RAMAN SPECTRA OF YBA/SUB
100       2/CU/SUB 3/O/SUB X/.
200       PONOSOV, YU.S.; BOLOTIN, G.A.; GURIN, O.V.; CHEBOTAEV, N.M.;
200       SAMOKHVALOV, A.A.; NAUMOV, S.V.
220       INST. OF METAL PHYS., ACAD. OF SCI., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       10 OCT. 1988. VOL.48, NO.7, P.380-3, REF.11
331       ENGLISH TRANSLATION: JETP LETT. (USA). 10 OCT. 1988. VOL.48, NO.7,
331       P.420-3. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       AN ANISOTROPIC SCATTERING HAS BEEN OBSERVED IN THE BASAL PLANE OF AN
400       ORTHORHOMBIC CRYSTAL FOR VIBRATIONS ASSOCIATED WITH A FILLING OF
400       COPPER-OXYGEN CHAINS. THESE VIBRATIONS EXHIBIT AN ANOMALOUS
400       CONCENTRATION, RESONANT, AND TEMPERATURE BEHAVIOR.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; RAMAN SPECTRA OF
500       INORGANIC SOLIDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; RESONANCE; COMPOSITION DEPENDENCE;
510       TEMPERATURE DEPENDENCE; RAMAN SPECTRA; ANISOTROPIC SCATTERING;
510       ORTHORHOMBIC CRYSTAL; VIBRATIONS; YBA/SUB 2/CU/SUB 3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1592
 AUTH     = GOLOLOBO
 DT       = 02
 KN       = B40891403747
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3394976
002       B40891403747
010       JOURNAL PAPER; EXPERIMENTAL.
100       EFFECT OF MG IMPURITY ON THE SUPERCONDUCTIVITY OF METAL OXIDES OF THE
100       SYSTEM BI-SR-CA-CU.
200       GOLOLOBOV, E.M.; PRYTKOVA, N.A.; TOMILO, ZH.M.; TURTSEVICH, D.M.;
200       SHIMANSKAYA, N.M.
220       INST. OF SOLID STATE PHYS. ? SEMICOND., ACAD. OF SCI., BYELORUSSIAN
220       SSR, USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       10 OCT. 1988. VOL.48, NO.7, P.384-6, REF.5
331       ENGLISH TRANSLATION: JETP LETT. (USA). 10 OCT. 1988. VOL.48, NO.7,
331       P.424-6. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       THE SUPERCONDUCTING TRANSITION TEMPERATURES T/SUB C/ OF THE
400       METAL-OXIDE SYSTEMS BI/SUB 2/SR/SUB 2/CAMG/SUB X/CU/SUB 2/O/SUB Y/
400       AND BISRCAMG/SUB X/CU/SUB 2/O/SUB Y/ WERE FOUND TO BE INDEPENDENT OF
400       THE MAGNESIUM CONCENTRATION. A STRONG DEGRADATION OF T/SUB C/ WAS
400       FOUND TO OCCUR IN THE SYSTEM BI/SUB 2/SR/SUB 2/CA/SUB 1-X/MG/SUB
400       X/CU/SUB 2/O/SUB Y/ AS THE MG CONCENTRATION WAS INCREASED.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; IMPURITIES; STRONTIUM COMPOUNDS; SUPERCONDUCTING
500       TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; MG IMPURITY; METAL OXIDES;
510       SUPERCONDUCTING TRANSITION TEMPERATURES; BI/SUB 2/SR/SUB 2/CAMG/SUB
510       X/CU/SUB 2/O/SUB Y/; BISRCAMG/SUB X/CU/SUB 2/O/SUB Y/.
550       BI2SR2CAMGCU2O/SS BI2/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS MG/SS SR/SS
550       O/SS; BISRCAMGCU2O/SS CU2/SS BI/SS CA/SS CU/SS MG/SS SR/SS O/SS.

DOCUMENT=            1593
 AUTH     = ARBUZOV
 DT       = 02
 KN       = B40891403748
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3394977
002       B40891403748
010       JOURNAL PAPER; EXPERIMENTAL.
100       ANISOTROPY OF THE SUPERCONDUCTING TRANSITION TEMPERATURE IN A
100       BI-SR-CA-CU-O SINGLE CRYSTAL.
200       ARBUZOV, V.L.; BAKUNIN, O.M.; DAVLETSHIN, A.E.; KLOTSMAN, S.M.;
200       KOSMYNA, M.B.; LEVIN, A.B.; SEMINOZHENKO, V.P.
220       INST. OF METAL PHYS., ACAD. OF SCI., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       10 OCT. 1988. VOL.48, NO.7, P.399-400, REF.3
331       ENGLISH TRANSLATION: JETP LETT. (USA). 10 OCT. 1988. VOL.48, NO.7,
331       P.440-2. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       THE ELECTRICAL RESISTANCE AND MAGNETIC SUSCEPTIBILITY OF A BI/SUB
400       2/SR/SUB 3-X/CA/SUB X/CU/SUB 2/O/SUB 8+Y/ SINGLE CRYSTAL HAVE BEEN
400       MEASURED. THE SUPERCONDUCTING TRANSITION TEMPERATURE IS OBSERVED TO
400       BE ANISOTROPIC WITH RESPECT TO THE C AXIS OF THE CRYSTAL.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MAGNETIC SUSCEPTIBILITY; STRONTIUM COMPOUNDS;
500       SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ANISOTROPY; ELECTRICAL RESISTANCE;
510       MAGNETIC SUSCEPTIBILITY; SUPERCONDUCTING TRANSITION TEMPERATURE;
510       BI/SUB 2/SR/SUB 3-X/CA/SUB X/CU/SUB 2/O/SUB 8+Y/ SINGLE CRYSTAL.
550       BI2SRCACU2O/SS BI2/SS CU2/SS BI/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1594
 AUTH     = ALEKSAND
 DT       = 02
 KN       = B40891403749
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3394978
002       B40891403749
010       JOURNAL PAPER; THEORETICAL.
100       ANOMALOUSLY DEEP PENETRATION OF A MAGNETIC FIELD INTO METAL-OXIDE
100       SUPERCONDUCTORS.
200       ALEKSANDROV, A.S.; TRAVEN, S.V.
220       MOSCOW ENG.-PHYS. INST., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       25 OCT. 1988. VOL.48, NO.8, P.426-8, REF.11
331       ENGLISH TRANSLATION: JETP LETT. (USA). 25 OCT. 1988. VOL.48, NO.8,
331       P.468-71. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       THE ANOMALOUS TEMPERATURE DEPENDENCE AND THE LARGE MAGNITUDE OF THE
400       LONDON PENETRATION DEPTH IN THE NEW HIGH-TEMPERATURE SUPERCONDUCTORS
400       ARE DESCRIBED SATISFACTORILY BY THE MODEL OF A HEAVY CHARGED BOSE GAS
400       OF BIPOLARONS.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PENETRATION DEPTH
500       (SUPERCONDUCTIVITY); POLARONS.
510       METAL-OXIDE SUPERCONDUCTORS; LONDON PENETRATION DEPTH;
510       HIGH-TEMPERATURE SUPERCONDUCTORS; HEAVY CHARGED BOSE GAS; BIPOLARONS.

DOCUMENT=            1595
 AUTH     = KATAEV
 DT       = 02
 KN       = B40891403750
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3394979
002       B40891403750
010       JOURNAL PAPER; EXPERIMENTAL.
100       COHERENCE EFFECTS IN THE SPIN RELAXATION OF LANTHANUM-STRONTIUM
100       CERAMICS.
200       KATAEV, V.E.; KUKOVITSKII, E.F.; TALANOV, YU.I.; TEITEL'BAUM, G.B.
220       PHYSICOTECH. INST., ACAD. OF SCI., KAZAN, USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       25 OCT. 1988. VOL.48, NO.8, P.433-6, REF.9
331       ENGLISH TRANSLATION: JETP LETT. (USA). 25 OCT. 1988. VOL.48, NO.8,
331       P.476-80. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       STUDY OF THE CRITICAL BEHAVIOR OF THE ESR LINE OF THE GADOLINIUM IONS
400       USED FOR SPIN PROBING OF A LANTHANUM-STRONTIUM SUPERCONDUCTOR HAS
400       MADE IT POSSIBLE TO DETERMINE THE MAGNITUDE OF THE GAP AND ITS
400       TEMPERATURE-DEPENDENCE IN THE CHARGE-EXCITATION SPECTRUM.
500       CERAMICS; HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS;
500       PARAMAGNETIC RESONANCE; STRONTIUM COMPOUNDS; SUPERCONDUCTING ENERGY
500       GAP.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ENERGY GAP; SPIN RELAXATION; ESR;
510       CHARGE-EXCITATION SPECTRUM; LASRCUO.
550       LASRCUO/SS CU/SS LA/SS SR/SS O/SS.

DOCUMENT=            1596
 AUTH     = TSURIN
 DT       = 02
 KN       = B40891403751
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3394980
002       B40891403751
010       JOURNAL PAPER; EXPERIMENTAL.
100       STUDY OF THE PROPERTIES OF OXYGEN-DEFICIENT COMPOUNDS YBA/SUB
100       2/CU/SUB 3-X/FE/SUB X/O/SUB 6+ DELTA / ON THE BASIS OF THE MOSSBAUER
100       SPECTROSCOPY DATA.
200       TSURIN, V.A.; SORKIN, A.M.; FILIPPOVA, N.P.; KOZHEVNIKOV, V.L.
220       INST. OF METAL PHYS., ACAD. OF SCI., SVERDLOVSK, USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       25 OCT. 1988. VOL.48, NO.8, P.444-8, REF.8
331       ENGLISH TRANSLATION: JETP LETT. (USA). 25 OCT. 1988. VOL.48, NO.8,
331       P.487-93. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       THE RESULTS OF THE MOSSBAUER MEASUREMENTS OF THE SYSTEM YBA/SUB
400       2/CU/SUB 3-X/FE/SUB X/O/SUB 6+ DELTA / (X=0.015, 0.005, AND 0.001)
400       ARE PRESENTED. THE CUI POSITIONS ARE REPLACED PRIMARILY BY FE ATOMS.
400       THE SPECTRUM WAS FOUND TO HAVE A FINE STRUCTURE WHICH IS ASSOCIATED
400       WITH DIFFERENT NUMBER OF VACANCIES AT THE CUI POSITIONS. THE DATA ON
400       THE CHARACTERISTICS OF LOCAL FIELDS WERE OBTAINED BY MEASURING THE
400       PARAMETERS OF THE SPECTRA OF TEXTURIZED SAMPLES.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; IRON COMPOUNDS;
500       MOSSBAUER EFFECT; VACANCIES (CRYSTAL); YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; MOSSBAUER SPECTROSCOPY; FINE
510       STRUCTURE; VACANCIES; LOCAL FIELDS; YBA/SUB 2/CU/SUB 3-X/FE/SUB
510       X/O/SUB 6+ DELTA /.
550       YBA2CUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS.

DOCUMENT=            1597
 AUTH     = ALEKSAND
 DT       = 02
 KN       = B40891403752
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3394981
002       B40891403752
010       JOURNAL PAPER; EXPERIMENTAL.
100       NEW DATA ON THE DEPENDENCE OF THE CRITICAL TEMPERATURE ON THE OXYGEN
100       CONCENTRATION IN THE SUPERCONDUCTING COMPOUND YBACU/SUB 3/O/SUB X/.
200       ALEKSANDROV, I.V.; BYKOV, A.B.; ZIBROV, I.P.; MAKARENKO, I.N.;
200       MEL'NIKOV, O.K.; MOLCHANOV, V.N.; MURADYAN, L.A.; NIKIFOROV, D.V.;
200       SVISTOV, L.E.; SIMONOV, V.I.; CHIGISHOV, S.M.; SHAPIRO, A.YA.;
200       STISHOV, S.M.
220       A.V. SHUBNIKOV INST. OF CRYSTALLOGR., ACAD. OF SCI., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       25 OCT. 1988. VOL.48, NO.8, P.449-52, REF.4
331       ENGLISH TRANSLATION: JETP LETT. (USA). 25 OCT. 1988. VOL.48, NO.8,
331       P.493-7. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       THE SUPERCONDUCTING AND STRUCTURAL PROPERTIES OF YBA/SUB 2/CU/SUB
400       3/O/SUB X/ SINGLE CRYSTALS WITH VARIOUS OXYGEN CONCENTRATIONS HAVE
400       BEEN STUDIED. THE NATURE OF THE TRANSITION TO THE SUPERCONDUCTING
400       STATE SUGGESTS THAT THE OXYGEN IS DISTRIBUTED NONUNIFORMLY IN THE
400       SAMPLES WITH X<7. THE T/SUB C/(X) CURVE IS FOUND TO BEHAVE
400       IRREGULARLY AT X<6.5.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; CRITICAL TEMPERATURE; STRUCTURAL
510       PROPERTIES; YBACU/SUB 3/O/SUB X/.
550       YBACU3O/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1598
 AUTH     = GONCHARO
 DT       = 02
 KN       = B40891403753
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3394982
002       B40891403753
010       JOURNAL PAPER; EXPERIMENTAL.
100       SUPERCONDUCTIVITY AND RAMAN SCATTERING OF LIGHT IN YBA/SUB 2/CU/SUB
100       3/O/SUB X/ SINGLE CRYSTALS.
200       GONCHAROV, A.F.; DENISOV, V.N.; ZIBROV, I.P.; MAVRIN, B.N.;
200       PODOBEDOV, V.B.; SHAPIRO, Y.YA.; STISHOV, S.M.
220       INST. OF SPECTROSC., ACAD. OF SCI., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       25 OCT. 1988. VOL.48, NO.8, P.453-6, REF.16
331       ENGLISH TRANSLATION: JETP LETT. (USA). 25 OCT. 1988. VOL.48, NO.8,
331       P.497-501. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       THE RAMAN-SCATTERING FREQUENCY OF A COMPLETELY SYMMETRIC MODEL
400       CORRESPONDING TO THE VIBRATIONS OF THE 'BRIDGE' O4-V OXYGEN AND TO
400       THE SUPERCONDUCTING TRANSITION TEMPERATURE T/SUB C/ OF YBA/SUB
400       2/CU/SUB 3/O/SUB X/ SINGLE CRYSTALS WITH VARIOUS OXYGEN
400       CONCENTRATIONS HAS BEEN MEASURED. THE V(X) CURVE WAS FOUND TO HAVE A
400       PLATEAU, SIMILAR TO THAT FOUND ON THE T/SUB C/(X) CURVE, AT
400       CONCENTRATIONS IN THE RANGE 6.5<X<6.8.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; RAMAN SPECTRA OF
500       INORGANIC SOLIDS; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; RAMAN SCATTERING; SYMMETRIC MODEL;
510       TRANSITION TEMPERATURE; YBA/SUB 2/CU/SUB 3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1599
 AUTH     = VOLODIN
 DT       = 02
 KN       = B40891403754
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3394983
002       B40891403754
010       JOURNAL PAPER; EXPERIMENTAL.
100       ENERGY GAP IN YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ SINGLE CRYSTALS WITH
100       VARIOUS OXYGEN CONCENTRATIONS.
200       VOLODIN, A.P.; KOTYUZHANSKII, B.YA.; STEPANYAN, G.A.
220       A.V. SHUBNIKOV INST. OF CRYSTALLOGR., ACAD. OF SCI., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       25 OCT. 1988. VOL.48, NO.8, P.457-60, REF.7
331       ENGLISH TRANSLATION: JETP LETT. (USA). 25 OCT. 1988. VOL.48, NO.8,
331       P.502-6. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       A TUNNELING ELECTRON MICROSCOPE HAS BEEN USED TO STUDY THE
400       RELATIONSHIP BETWEEN THE MAGNITUDE OF THE ENERGY GAP DELTA AND THE
400       SUPERCONDUCTING TRANSITION TEMPERATURE OF YBA/SUB 2/CU/SUB 3/O/SUB
400       7-X/ SINGLE CRYSTALS WITH VARIOUS OXYGEN CONCENTRATIONS. THE
400       DISTRIBUTION OF THE GAP ALONG THE SURFACE OF THE CRYSTAL WAS ALSO
400       STUDIED. THE RESULTS OF THE STUDY ARE APPROXIMATED BY THE LINEAR
400       DEPENDENCE 2 DELTA /SUB AV/=4.4 KT/SUB C/.
500       BARIUM COMPOUNDS; ELECTRON MICROSCOPE EXAMINATION OF MATERIALS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING ENERGY GAP;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; TUNNELING ELECTRON MICROSCOPE;
510       ENERGY GAP; TRANSITION TEMPERATURE; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1600
 AUTH     = TAKAHASH
 DT       = 02
 KN       = B40891403799
 LG       = JAPA
 SN       = ISSN 0021-4876
 YR       = 89
000       3395028
002       B40891403799
010       JOURNAL PAPER; EXPERIMENTAL.
100       SUPERCONDUCTING CURRENT PROPERTY ACROSS SMALL ANGLE GRAIN BOUNDARIES
100       IN YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
200       TAKAHASHI, Y. / MORI, M.; ISHIDA, Y.
220       TOKYO UNIV., JAPAN
310       J. JPN. INST. MET. (JAPAN)
330       APRIL 1989. VOL.53, NO.4, P.477-8, REF.9. (IN JAPANESE)
350       ISSN 0021-4876, CODEN NIKGAV
400       THE AUTHORS STUDY SUPERCONDUCTING CRITICAL CURRENTS AND WEAK COUPLING
400       IN THE DISLOCATION MODEL. TEM MICROGRAPHS OF TILT BOUNDARIES ARE
400       PRESENTED.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       DISLOCATIONS; GRAIN BOUNDARIES; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       TILT BOUNDARIES; TRANSMISSION ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; TRANSMISSION ELECTRON MICROSCOPY;
510       SMALL ANGLE GRAIN BOUNDARIES; SUPERCONDUCTING CRITICAL CURRENTS; WEAK
510       COUPLING; DISLOCATION MODEL; TEM MICROGRAPHS; TILT BOUNDARIES;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1601
 AUTH     = CHUN-MIN
 DT       = 02
 KN       = B40891403816
 LG       = ENGL
 SN       = ISSN 0022-4596
 YR       = 89
000       3395045
002       B40891403816
010       JOURNAL PAPER; EXPERIMENTAL.
100       PREPARATION AND PROPERTIES OF LA/SUB 2-X/BI/SUB X/CUO/SUB 4/
100       (0.1>OR=X>OR=0).
200       CHUN-MING NIU; DICARLO, J.; DWIGHT, K.; WOLD, A.
220       DEPT. OF CHEM., BROWN UNIV., PROVIDENCE, RI, USA
310       J. SOLID STATE CHEM. (USA)
330       FEB. 1989. VOL.78, NO.2, P.307-11, REF.12
350       ISSN 0022-4596, CODEN JSSCBI
400       SAMPLES OF LA/SUB 2-X/BI/SUB X/CUO/SUB 4/ WERE PREPARED BY
400       CODECOMPOSITION OF THE NITRATES IN AIR. SINGLE-PHASE PRODUCTS WERE
400       OBTAINED FOR X<OR=0.10. THE SUBSTITUTION OF BISMUTH FOR LANTHANUM
400       RESULTED IN AN INCREASE IN DELOCALIZATION OF HOLES, AS INDICATED BY
400       INCREASED CONDUCTIVITY AND A DECREASE IN THE NEEL TEMPERATURE.
400       SAMPLES WERE ALSO ANNEALED IN ARGON AT 600 DEGREES C AND THEIR
400       PROPERTIES COMPARED WITH THE SAMPLES AS PREPARED IN AIR.
500       ANNEALING; ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BISMUTH
500       COMPOUNDS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE SEMICONDUCTORS AND
500       INSULATORS; LANTHANUM COMPOUNDS; LATTICE CONSTANTS; MAGNETIC
500       SUSCEPTIBILITY; NEEL TEMPERATURE; PARAMAGNETIC PROPERTIES OF
500       SUBSTANCES; SEMICONDUCTOR MATERIALS.
510       SYNTHESIS; ANNEALING; SEMICONDUCTOR; HOLE DELOCALIZATION; LATTICE
510       CONSTANTS; ELECTRICAL CONDUCTIVITY; CODECOMPOSITION; NEEL
510       TEMPERATURE; 600 K; LA/SUB 2-X/BI/SUB X/CUO/SUB 4/.
550       LABICUO4/SS BI/SS CU/SS LA/SS O4/SS O/SS.
560       TEMPERATURE 6.0 E+02 K.

DOCUMENT=            1602
 AUTH     = VIJAYARA
 DT       = 02
 KN       = B40891403818
 LG       = ENGL
 SN       = ISSN 0022-4596
 YR       = 89
000       3395047
002       B40891403818
010       JOURNAL PAPER; EXPERIMENTAL.
100       A SERIES OF METALLIC OXIDES OF THE FORMULA LA/SUB 3/LNBACU/SUB
100       5/O/SUB 13+ DELTA / (LN=RARE EARTH OR Y).
200       VIJAYARAGHAVAN, R.; MOHAN RAM, R.A.; RAO, C.N.R.
220       SOLID STATE ? STRUCTURAL CHEM. UNIT, INDIAN INST. OF SCI., BANGALORE,
220       INDIA
310       J. SOLID STATE CHEM. (USA)
330       FEB. 1989. VOL.78, NO.2, P.316-18, REF.5
350       ISSN 0022-4596, CODEN JSSCBI
400       OXIDES OF THE FORMULA LA/SUB 3/LNBACU/SUB 5/O/SUB 13+ DELTA / (LN=ND,
400       SM, GD, DY, OR Y) EXHIBITING METALLIC RESISTIVITY HAVE BEEN PREPARED
400       AND CHARACTERIZED. IN THE CASE OF YTTRIUM, A COMPOSITION CLOSE TO
400       LA/SUB 2/Y/SUB 2/BACU/SUB 5/O/SUB 13+ DELTA /, WHICH IS ALSO
400       METALLIC, COULD BE PREPARED.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       ELECTRICAL CONDUCTIVITY OF SOLIDS; LANTHANUM; RARE EARTH COMPOUNDS;
500       SYNTHETIC METALS; YTTRIUM COMPOUNDS.
510       METALLIC CONDUCTION; CRYSTAL STRUCTURE; X-RAY DIFFRACTION; ELECTRICAL
510       CONDUCTIVITY; METALLIC OXIDES; LA/SUB 3/NDBACU/SUB 5/O/SUB 13+ DELTA
510       /; LA/SUB 3/SMBACU/SUB 5/O/SUB 13+ DELTA /; LA/SUB 3/GDBACU/SUB
510       5/O/SUB 13+ DELTA /; LA/SUB 3/DYBACU/SUB 5/O/SUB 13+ DELTA /; LA/SUB
510       3/YBACU/SUB 5/O/SUB 13+ DELTA /.
550       LA3NDBACU5O/SS CU5/SS LA3/SS BA/SS CU/SS LA/SS ND/SS O/SS;
550       LA3SMBACU5O/SS CU5/SS LA3/SS BA/SS CU/SS LA/SS SM/SS O/SS;
550       LA3GDBACU5O/SS CU5/SS LA3/SS BA/SS CU/SS GD/SS LA/SS O/SS;
550       LA3DYBACU5O/SS CU5/SS LA3/SS BA/SS CU/SS DY/SS LA/SS O/SS;
550       LA3YBACU5O/SS CU5/SS LA3/SS BA/SS CU/SS LA/SS O/SS Y/SS.

DOCUMENT=            1603
 AUTH     = ROUILLON
 DT       = 02
 KN       = B40891403819
 LG       = ENGL
 SN       = ISSN 0022-4596
 YR       = 89
000       3395048
002       B40891403819
010       JOURNAL PAPER; EXPERIMENTAL.
100       PBBAYSRCU/SUB 3/O/SUB 8/: A NEW MEMBER OF THE INTERGROWTH FAMILY
100       (ACUO/SUB 3-X/)/SUB M/(A'O)/SUB N/.
200       ROUILLON, T.; RETOUX, R.; GROULT, D.; MICHEL, C.; HERVIEU, M.;
200       PROVOST, J.; RAVEAU, B.
220       CRISMAT, ISMRA, CAEN, FRANCE
310       J. SOLID STATE CHEM. (USA)
330       FEB. 1989. VOL.78, NO.2, P.322-5, REF.13
350       ISSN 0022-4596, CODEN JSSCBI
400       A NEW MEMBER OF THE INTERGROWTH FAMILY (ACUO/SUB 3-X/)/SUB
400       M/(A'O)/SUB N/ HAS BEEN ISOLATED. PBBAYSRCU/SUB 3/O/SUB 8/ REPRESENTS
400       THE MEMBER (M=3; N=1). ITS STRUCTURE IS FORMED BY STACKING (A'O)/SUB
400       INFINITY / SINGLE ROCK-SALT-TYPE LAYERS (A'=PB, BA) AND TRIPLE
400       OXYGEN-DEFICIENT PEROVSKITE LAYERS (A/SUB 3/CU/SUB 3/O/SUB 7/)/SUB
400       INFINITY / (A=BA, PB, SR, Y). EACH PEROVSKITE LAYER FOR DIFFERENT M=3
400       MEMBERS IS FORMED OF TWO PYRAMIDAL (CUO/SUB 2.5/)/SUB INFINITY /
400       LAYERS AND ONE (CUO)/SUB INFINITY / LAYER OF CORNER-SHARING CUO/SUB
400       4/ SQUARE PLANAR GROUP INTERLEAVED WITH Y AND SR IONS. THE
400       AS-SYNTHESIZED COMPOUND IS NOT A SUPERCONDUCTOR, BUT EVIDENCE OF
400       SUPERCONDUCTIVITY AT 50 K (LESS THAN 1%) IS OBSERVED BY INTRODUCTION
400       OF CALCIUM. A PRELIMINARY ELECTRON MICROSCOPY INVESTIGATION OF THIS
400       PHASE SHOWS THAT IT EXHIBITS A MODULATED STRUCTURE.
500       BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; LEAD
500       COMPOUNDS; STRONTIUM COMPOUNDS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE; YTTRIUM COMPOUNDS.
510       INTERGROWTH COMPOUND; HIGH TEMPERATURE SUPERCONDUCTOR; CRYSTAL
510       STRUCTURE; CRITICAL TEMPERATURE; TRIPLE O-DEFICIENT PEROVSKITE
510       LAYERS; ROCK-SALT-TYPE LAYERS; ELECTRON MICROSCOPY; MODULATED
510       STRUCTURE; 50 K; PBBAYSRCU/SUB 3/O/SUB 8/; PB-BA-CA-Y-SR-CU-O.
550       PBBACAYSRCUO/SS BA/SS CA/SS CU/SS PB/SS SR/SS O/SS Y/SS;
550       PBBAYSRCU3O8/SS CU3/SS BA/SS CU/SS O8/SS PB/SS SR/SS O/SS Y/SS.
560       TEMPERATURE 5.0 E+01 K.

DOCUMENT=            1604
 AUTH     = SHIBAHAR
 DT       = 02
 KN       = B40891403820
 LG       = ENGL
 SN       = ISSN 0022-4596
 YR       = 89
000       3395049
002       B40891403820
010       JOURNAL PAPER; EXPERIMENTAL.
100       COPPER-RICH PLANAR DEFECTS IN GD-SUBSTITUTED SUPERCONDUCTORS.
200       SHIBAHARA, H.; MARKS, L.D. / HWU, S.-J.; POEPPELMEIER, K.R.
220       DEPT. OF MATER. SCI. ? ENG., NORTHWESTERN UNIV., EVANSTON, IL, USA
310       J. SOLID STATE CHEM. (USA)
330       APRIL 1989. VOL.79, NO.2, P.194-204, REF.39
350       ISSN 0022-4596, CODEN JSSCBI
400       THE STRUCTURE OF THE HIGH-TEMPERATURE SUPERCONDUCTOR GDBA/SUB
400       2/CU/SUB 3/O/SUB X/ (X APPROXIMATELY=7) WAS EXAMINED BY
400       HIGH-RESOLUTION TRANSMISSION ELECTRON MICROSCOPY. THE GD-SUBSTITUTED
400       SUPERCONDUCTORS, IN CONTRAST TO THE YTTRIUM-BASED MATERIALS,
400       CONTAINED A LARGE NUMBER OF PLANAR DEFECTS CORRESPONDING TO A SHEAR
400       VECTOR OF 1/6(301). DETAILED IMAGE SIMULATION ENABLED THE DEFECTS TO
400       BE IDENTIFIED AS COPPER-RICH REGIONS.
500       BARIUM COMPOUNDS; CRYSTAL DEFECTS; GADOLINIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; TRANSMISSION ELECTRON MICROSCOPE
500       EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; STRUCTURE; HIGH-RESOLUTION
510       TRANSMISSION ELECTRON MICROSCOPY; PLANAR DEFECTS; SHEAR VECTOR; IMAGE
510       SIMULATION; GDBA/SUB 2/CU/SUB 3/O/SUB X/.
550       GDBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS GD/SS O/SS.

DOCUMENT=            1605
 AUTH     = EGDELL
 DT       = 02
 KN       = B40891403821
 LG       = ENGL
 SN       = ISSN 0022-4596
 YR       = 89
000       3395050
002       B40891403821
010       JOURNAL PAPER; EXPERIMENTAL.
100       ATMOSPHERIC DEGRADATION OF YBA/SUB 2/CU/SUB 3/O/SUB 7/: A STUDY BY
100       INFRARED REFLECTANCE, RAMAN SCATTERING, AND X-RAY PHOTOELECTRON
100       SPECTROSCOPY.
200       EGDELL, R.G.; FLAVELL, W.R.; HOLLAMBY, P.C.
220       CENTRE FOR HIGH TEMP. SUPERCONDUCTIVITY, IMPERIAL COLL., LONDON, UK
310       J. SOLID STATE CHEM. (USA)
330       APRIL 1989. VOL.79, NO.2, P.238-49, REF.32
350       ISSN 0022-4596, CODEN JSSCBI
400       INFRARED REFLECTANCE SPECTROSCOPY. RAMAN SCATTERING, AND X-RAY
400       PHOTOELECTRON SPECTROSCOPY HAVE BEEN USED TO STUDY THE ATMOSPHERIC
400       DEGRADATION OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /. THE DEGRADATION
400       REACTION: 2YBA/SUB 2/CU/SUB 3/O/SUB 7/+3CO/SUB 2/ TO Y/SUB
400       2/BACUO/SUB 5/+5CUO+3BACO/SUB 3/+0.50/SUB 2/ IS STRONGLY CATALYZED BY
400       WATER VAPOR, AND CARBONATE SPECIES BUILD UP IN A MATTER OF HOURS ON
400       AN IR DEPTH SCALE AT ROOM TEMPERATURE IN WATER VAPOR SATURATED AIR.
400       THE REACTION IS RAPID EVEN FOR REDUCED SAMPLES (X=1.0) CONTAINING NO
400       CU(III).
500       BARIUM COMPOUNDS; CATALYSTS; ENVIRONMENTAL DEGRADATION;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; INFRARED SPECTRA OF INORGANIC
500       SOLIDS; RAMAN SPECTRA OF INORGANIC SOLIDS; X-RAY PHOTOELECTRON
500       SPECTRA; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ATMOSPHERIC DEGRADATION; INFRARED
510       REFLECTANCE; RAMAN SCATTERING; X-RAY PHOTOELECTRON SPECTROSCOPY;
510       DEGRADATION REACTION; WATER VAPOR; CARBONATE SPECIES; REDUCED
510       SAMPLES; YBA/SUB 2/CU/SUB 3/O/SUB 7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1606
 AUTH     = SLUSAREN
 DT       = 02
 KN       = B40891403822
 LG       = ENGL
 SN       = ISSN 0022-4596
 YR       = 89
000       3395051
002       B40891403822
010       JOURNAL PAPER; EXPERIMENTAL.
100       SOL-GEL PREPARATIONS AND PHYSICAL PROPERTIES OF THE SUPERCONDUCTING
100       PHASE BI/SUB 1/SR/SUB 1/CA/SUB 1/CU/SUB 2/O/SUB X/.
200       SLUSARENKO, V. / THAMPI, K.R.; KIWI, J.
220       DEPT. DE FISICA, UNIV. TECNICA, VALPARAISO, CHILE
310       J. SOLID STATE CHEM. (USA)
330       APRIL 1989. VOL.79, NO.2, P.277-81, REF.12
350       ISSN 0022-4596, CODEN JSSCBI
400       THE SYSTEM BI/SUB 1/SR/SUB 1/CA/SUB 1/CU/SUB 2/O/SUB X/ WITH
400       SUPERCONDUCTING TRANSITION TEMPERATURES (T/SUB C/) OF 80 AND 110 K
400       HAS BEEN OBTAINED VIA A SOL-GEL PROCESS USING OXALATE AS THE
400       COMPLEXING AGENT. THE COMPOUND HAS METALLIC-LIKE RESISTANCE AND IS
400       FORMED BY HEATING THE PRECURSOR COMPOUND TO TEMPERATURES NEAR ITS
400       MELTING POINT (885 DEGREES C). THE PREPARATION IS HIGHLY REPRODUCIBLE
400       AND LEADS TO BLACK-GRAINED POWDERS WITH EXCELLENT HOMOGENEITY AND
400       SINTERABILITY. THE RESULTING MATERIAL WAS EXAMINED BY
400       THERMOGRAVIMETRY (TG), X-RAY DIFFRACTION, TRANSMISSION ELECTRON
400       MICROSCOPY (TEM), ELEMENTAL ANALYSIS, SURFACE AREA (BET), AND
400       RESISTIVITY MEASUREMENTS USING A DIRECT CURRENT SOURCE. DETAILS
400       INVOLVING THE NOVEL PREPARATION AND CHARACTERIZATION OF THIS MATERIAL
400       ARE DISCUSSED.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CERAMICS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SOL-GEL PROCESSING; STRONTIUM COMPOUNDS; THERMAL
500       ANALYSIS; TRANSMISSION ELECTRON MICROSCOPE EXAMINATION OF MATERIALS;
500       X-RAY DIFFRACTION EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SOL-GEL PREPARATIONS; TEM; PHYSICAL
510       PROPERTIES; SUPERCONDUCTING TRANSITION TEMPERATURES; OXALATE;
510       COMPLEXING AGENT; METALLIC-LIKE RESISTANCE; MELTING POINT;
510       PREPARATION; BLACK-GRAINED POWDERS; HOMOGENEITY; SINTERABILITY;
510       THERMOGRAVIMETRY; X-RAY DIFFRACTION; TRANSMISSION ELECTRON
510       MICROSCOPY; ELEMENTAL ANALYSIS; SURFACE AREA; RESISTIVITY; DIRECT
510       CURRENT SOURCE; CHARACTERIZATION; 80 K; 110 K; BI/SUB 1/SR/SUB
510       1/CA/SUB 1/CU/SUB 2/O/SUB X/.
550       BI1SR1CA1CU2O/SS BI1/SS CA1/SS CU2/SS SR1/SS BI/SS CA/SS CU/SS SR/SS
550       O/SS.
560       TEMPERATURE 8.0 E+01 K; TEMPERATURE 1.1 E+02 K.

DOCUMENT=            1607
 AUTH     = KAKOL
 DT       = 02
 KN       = B40891403823
 LG       = ENGL
 SN       = ISSN 0022-4596
 YR       = 89
000       3395052
002       B40891403823
010       JOURNAL PAPER; EXPERIMENTAL.
100       SUPERCONDUCTIVITY AND ANTIFERROMAGNETISM IN LA/SUB 2-X/SR/SUB
100       X/NIO/SUB 4/.
200       KAKOL, Z.; SPALEK, J.; HONIG, J.M.
220       PURDUE UNIV., WEST LAFAYETTE, IN, USA
310       J. SOLID STATE CHEM. (USA)
330       APRIL 1989. VOL.79, NO.2, P.288-92, REF.12
350       ISSN 0022-4596, CODEN JSSCBI
400       THE AUTHORS REPORT THE OBSERVATION OF SUPERCONDUCTIVITY IN LA/SUB
400       2-X/SR/SUB X/NIO/SUB 4/, WITH TRANSITION TEMPERATURES UP TO 70 K,
400       DEPENDING ON THERMAL CYCLING CONDITIONS. THE EXISTENCE OF
400       SUPERCONDUCTING PROPERTIES IN A SAMPLE WITH X=0.2 TESTS THE NATURE OF
400       EXCHANGE-MEDIATED PAIRING SINCE NI/SUP 2+/ IONS IN THESE COMPOUNDS
400       ARE LIKELY TO BE IN THE SPIN S=1 STATE. A COEXISTENCE OF
400       ANTIFERROMAGNETISM AND SUPERCONDUCTIVITY IS OBSERVED BELOW 20 K AND
400       MAY BE DUE TO A STRUCTURAL PHASE SEPARATION AT TEMPERATURES BELOW 70
400       K.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC MOMENTS; MAGNETIC
500       SUPERCONDUCTORS; STRONTIUM COMPOUNDS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MAGNETIC MOMENT; THERMAL CYCLING
510       CONDITIONS; SUPERCONDUCTING PROPERTIES; EXCHANGE-MEDIATED PAIRING;
510       NI/SUP 2+/ IONS; ANTIFERROMAGNETISM; STRUCTURAL PHASE SEPARATION; 9
510       TO 70 K; LA/SUB 2-X/SR/SUB X/NIO/SUB 4/.
550       LASRNIO4/SS LA/SS NI/SS O4/SS SR/SS O/SS.
560       TEMPERATURE 9.0 E+00 TO 7.0 E+01 K.

DOCUMENT=            1608
 AUTH     = YAMAGISH
 DT       = 06
 KN       = B40891403982
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395211
002       B40891403982
010       CONFERENCE PAPER; EXPERIMENTAL.
100       H/SUB C2/ MEASUREMENT FROM 4.2 K TO 93 K AND NORMAL RESISTIVITY OF
100       RBA/SUB 2/CU/SUB 3/O/SUB Y/ (R=EU, DY, HO) SINGLE CRYSTAL.
200       YAMAGISHI, A.; FUKE, H.; SUGIYAMA, K.; DATE, M.; TAJIMA, Y.; HIKITA,
200       M.
220       RES. CENTER FOR EXTREME MATER., OSAKA UNIV., JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2173-4, REF.9
350       ISSN 0449-1947, CODEN JPQCAK
400       THE H/SUB C2/-T AND NORMAL RESISTIVITY CURVES OF THE SUPERCONDUCTING
400       RBA/SUB 2/CU/SUB 3/O/SUB Y/ (R=EU, DY, HO) SINGLE CRYSTALS ARE
400       MEASURED FROM 4.2 K TO 300 K UNDER A PULSED MAGNETIC FIELD UP TO 50
400       T. THE H/SUB C2/-T CURVES AGREE WELL WITH THE WHH THEORY AND THE
400       NORMAL RESISTIVITIES SHOW TEMPERATURE DEPENDENCES LIKE NORMAL METAL.
500       BARIUM COMPOUNDS; DYSPROSIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF
500       CRYSTALLINE SEMICONDUCTORS AND INSULATORS; EUROPIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; HOLMIUM COMPOUNDS; SUPERCONDUCTING
500       CRITICAL FIELD.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; UPPER CRITICAL MAGNETIC FIELD;
510       NORMAL RESISTIVITY; SINGLE CRYSTAL; WHH THEORY; TEMPERATURE
510       DEPENDENCES; 4.2 TO 300 K; 93 K; EUBA/SUB 2/CU/SUB 3/O/SUB Y/;
510       DYBA/SUB 2/CU/SUB 3/O/SUB Y/; HOBA/SUB 2/CU/SUB 3/O/SUB Y/.
550       EUBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS EU/SS O/SS; DYBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS DY/SS O/SS; HOBA2CU3O/SS BA2/SS CU3/SS
550       BA/SS CU/SS HO/SS O/SS.
560       TEMPERATURE 4.2 E+00 TO 3.0 E+02 K; TEMPERATURE 9.3 E+01 K.

DOCUMENT=            1609
 AUTH     = VINCENT
 DT       = 06
 KN       = B40891403983
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395212
002       B40891403983
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC FIELD PENETRATION IN SINGLE CRYSTAL AND POWDER DYBA/SUB
100       2/CU/SUB 3/O/SUB 7-X/ AND GDBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
200       VINCENT, E.; HAMMANN, J.; HODGES, J.A. / NOEL, H.; POTEL, M.; LEVET,
200       J.C.; GOUGEON, P.
220       SERVICE DE PHYSIQUE DU SOLIDE ET DE RESONANCE MAGNETIQUE, CENS,
220       GIF-SUR-YVETTE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2175-6, REF.4
350       ISSN 0449-1947, CODEN JPQCAK
400       FROM MAGNETISATION MEASUREMENTS ON SUPERCONDUCTING DYBA/SUB 2/CU/SUB
400       3/O/SUB 7-X/ AND GDBA/SUB 2/CU/SUB 3/O/SUB 7-X/, THE AUTHORS SHOW
400       THAT THE AVERAGE FIELD PENETRATION AT THE RARE EARTH SITE IS MUCH
400       LOWER THAN EXPECTED FROM MEISSNER EFFECT ESTIMATES. THIS PREFERENTIAL
400       FIELD REJECTION IS STRONGEST IN SINGLE CRYSTALS, WHERE THE RARE EARTH
400       MAGNETIC ORDERING CANNOT BE DETECTED.
500       BARIUM COMPOUNDS; DYSPROSIUM COMPOUNDS; GADOLINIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PENETRATION DEPTH
500       (SUPERCONDUCTIVITY).
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; SINGLE CRYSTAL; POWDER;
510       MAGNETISATION; AVERAGE FIELD PENETRATION; RARE EARTH SITE; MEISSNER
510       EFFECT ESTIMATES; PREFERENTIAL FIELD REJECTION; RARE EARTH MAGNETIC
510       ORDERING; DYBA/SUB 2/CU/SUB 3/O/SUB 7-X/; GDBA/SUB 2/CU/SUB 3/O/SUB
510       7-X/.
550       DYBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS DY/SS O/SS; GDBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS GD/SS O/SS.

DOCUMENT=            1610
 AUTH     = NEKVASIL
 DT       = 06
 KN       = B40891403984
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395213
002       B40891403984
010       CONFERENCE PAPER; THEORETICAL.
100       CRYSTAL-FIELD EFFECTS IN REBA/SUB 2/CU/SUB 3/O/SUB 7/.
200       NEKVASIL, V.; STEHNO, J.; SEBEK, J.; HAVELA, L.; SECHOVSKY, V.;
200       SVOBODA, P.
220       INST. OF PHYS., CZECHOSLOVAK ACAD. SCI., PRAHA, CZECHOSLOVAKIA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2177-8, REF.11
350       ISSN 0449-1947, CODEN JPQCAK
400       SUPERPOSITION MODEL OF THE CRYSTAL FIELD IS USED TO PREDICT
400       SPLITTINGS OF THE LOWEST MULTIPLETS AND GROUND-STATE MAGNETIC
400       PROPERTIES OF RARE EARTH (RE) IONS IN THE HIGH-T/SUB C/
400       SUPERCONDUCTOR REBA/SUB 2/CU/SUB 3/O/SUB 7/. THE RESULTS ARE COMPARED
400       WITH EXPERIMENTAL DATA AVAILABLE IN THE LITERATURE.
500       BARIUM COMPOUNDS; CRYSTAL FIELD INTERACTIONS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MAGNETIC PROPERTIES OF SUBSTANCES; RARE EARTH
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; RARE EARTH COMPOUNDS; CRYSTAL
510       FIELD EFFECTS; SUPERPOSITION MODEL; LOWEST MULTIPLETS SPLITTING;
510       REBA/SUB 2/CU/SUB 3/O/SUB 7/; GROUND-STATE MAGNETIC PROPERTIES.
550       BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS.

DOCUMENT=            1611
 AUTH     = CAUSA
 DT       = 06
 KN       = B40891403985
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395214
002       B40891403985
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ESR OF GD/SUB X/EU/SUB 1-X/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / CERAMIC
100       OXIDES.
200       CAUSA, M.T.; FAINSTEIN, C.; FISK, Z.; OSEROFF, S.B.; SANCHEZ, R.D.;
200       STEREN, L.B.; TOVAR, M.; ZYSLER, R.D.
220       CENTRO ATOMICO BARILOCHE, ARGENTINA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2179-80, REF.7
350       ISSN 0449-1947, CODEN JPQCAK
400       ELECTRON SPIN RESONANCE STUDIES ON GD/SUP 3+/ IONS IN GD/SUB X/EU/SUB
400       1-X/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / ARE PRESENTED. THE DEPENDENCE
400       OF THE G-FACTOR AND LINEWIDTH ON THE CONCENTRATION OF MAGNETIC IONS
400       AND TEMPERATURE IS DISCUSSED FOR SUPERCONDUCTING AND
400       NONSUPERCONDUCTING SAMPLES WITH DELTA =0 AND DELTA =0.7 RESPECTIVELY.
500       BARIUM COMPOUNDS; CERAMICS; EPR LINE BREADTH; EUROPIUM COMPOUNDS;
500       G-FACTOR; GADOLINIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       PARAMAGNETIC RESONANCE OF RARE EARTH IONS AND IMPURITIES.
510       MAGNETIC ION CONCENTRATION DEPENDENCE; ELECTRON SPIN RESONANCE; HIGH
510       TEMPERATURE SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; ESR; GD/SUP
510       3+/ IONS; G-FACTOR; LINEWIDTH; GD/SUB X/EU/SUB 1-X/BA/SUB 2/CU/SUB
510       3/O/SUB 7- DELTA / CERAMIC OXIDES.
550       GDEUBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS EU/SS GD/SS O/SS.

DOCUMENT=            1612
 AUTH     = FRUCHTER
 DT       = 06
 KN       = B40891403986
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395215
002       B40891403986
010       CONFERENCE PAPER; EXPERIMENTAL.
100       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / SINGLE CRYSTALS INVESTIGATED BY
100       TORQUE AND MAGNETOMETRY.
200       FRUCHTER, L. / GIOVANNELLA, C.; OUSSENA, M.; SENOUSSI, S.; CAMPBELL,
200       I.A.
220       LAB. DE PHYSIQUE DES SOLIDES, UNIV. PARIS SUD, ORSAY, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2181-2, REF.6
350       ISSN 0449-1947, CODEN JPQCAK
400       MAGNETIC CRITICAL CURRENT DENSITIES OF A YBACUO SINGLE CRYSTAL HAVE
400       BEEN INVESTIGATED USING BOTH MAGNETOMETRY AND TORQUE. FOR CURRENTS
400       ALONG THE C AXIS, J/SUB C/ IS ESTIMATED TO BE 10/SUP 3/ AND 10/SUP 5/
400       A/CM/SUP 2/ RESPECTIVELY FROM THE TWO TECHNIQUES, COMPARED TO 10/SUP
400       5/ AND 10/SUP 6/ A/CM/SUP 2/ FOR CURRENTS IN THE AB PLANE.
400       DIFFERENCES BETWEEN THE TWO ESTIMATES ARE ASCRIBED TO THE INTRINSIC
400       INHOMOGENEITY OF THE FLUX PINNING.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY); FLUX
500       PINNING; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC HYSTERESIS;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; MAGNETIC CRITICAL CURRENT
510       DENSITY; MAGNETIC HYSTERESIS; TORQUE; MAGNETOMETRY; INTRINSIC
510       INHOMOGENEITY; FLUX PINNING; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
510       SINGLE CRYSTALS.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1613
 AUTH     = CHEN
 DT       = 06
 KN       = B40891403987
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395216
002       B40891403987
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC PROPERTIES OF Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB X/
100       SUPERCONDUCTOR OBTAINED BY RAPID QUENCHING FROM THE MELT.
200       CHEN, D.-X.; SKUMRYEV, V.; KARPE, N.; PUZNIAK, R.; RAO, K.V.
220       DEPT. OF SOLID STATE PHYS., R. INST. OF TECHNOL., STOCKHOLM, SWEDEN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2183-4, REF.9
350       ISSN 0449-1947, CODEN JPQCAK
400       HIGH-T/SUB C/ Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB X/ SUPERCONDUCTOR HAS
400       BEEN PRODUCED BY RAPID QUENCHING FROM THE MELT. LOW FIELD AC AND DC
400       MAGNETIC PROPERTIES HAVE BEEN MEASURED AND ARE DISCUSSED IN RELATION
400       TO THE MICROSTRUCTURE OF THE MATERIAL. FROM THE LOSSY COMPONENT OF
400       THE AC SUSCEPTIBILITY THE AUTHORS HAVE COMPUTED THE TRANSPORT
400       CRITICAL CURRENT AND ITS TEMPERATURE DEPENDENCE. FROM GALVANOMAGNETIC
400       STUDIES THE EFFECTIVE CARRIER CONCENTRATION AND HALL MOBILITIES ARE
400       FOUND TO BE 8*10/SUP 21/ HOLES/CM/SUP 3/ AND 0.20 CM/SUP 2//VS
400       RESPECTIVELY.
500       BARIUM COMPOUNDS; CARRIER DENSITY; CARRIER MOBILITY; CRITICAL
500       CURRENTS; CRYSTAL GROWTH FROM MELT; CRYSTAL MICROSTRUCTURE; HALL
500       EFFECT; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC PROPERTIES OF
500       SUBSTANCES; MAGNETIC SUSCEPTIBILITY; QUENCHING (THERMAL); YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; RAPID QUENCHING; MELT; MAGNETIC
510       PROPERTIES; MICROSTRUCTURE; LOSSY COMPONENT; AC SUSCEPTIBILITY;
510       TRANSPORT CRITICAL CURRENT; TEMPERATURE DEPENDENCE; GALVANOMAGNETIC
510       STUDIES; EFFECTIVE CARRIER CONCENTRATION; HALL MOBILITIES; Y/SUB
510       1/BA/SUB 2/CU/SUB 3/O/SUB X/.
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1614
 AUTH     = MIYAJIMA
 DT       = 06
 KN       = B40891403988
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395217
002       B40891403988
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ANISOTROPIC SUPERCONDUCTIVITY OBSERVED FOR Y/SUB 1/BA/SUB 2/CU/SUB
100       3/O/SUB Y/ SINGLE CRYSTALS BY TORQUE MAGNETOMETRY.
200       MIYAJIMA, H.; TOMITA, H.; OTANI, Y.; YONEZAMA, F.; CHIKAZUMI, S. /
200       TAKEYA, H.; TAKEI, H.
220       DEPT. OF PHYS., KEIO UNIV., YOKOHAMA, JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2185-6, REF.2
350       ISSN 0449-1947, CODEN JPQCAK
400       MAGNETIC TORQUES WERE MEASURED ON Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB Y/
400       SINGLE CRYSTALS OVER THE TEMPERATURE RANGE FROM 4.2 K TO RT IN
400       MAGNETIC FIELDS UP TO 10 KOE. THE TORQUE CURVE EXHIBITED A LARGE
400       ROTATIONAL HYSTERESIS. THE ANISOTROPIC BEHAVIORS ARE DISCUSSED IN
400       TERMS OF THE MAGNETIC FLUX PINNING EFFECT.
500       BARIUM COMPOUNDS; FLUX PINNING; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MAGNETIC HYSTERESIS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; TORQUE MAGNETOMETRY; TORQUE
510       CURVE; ROTATIONAL HYSTERESIS; ANISOTROPIC BEHAVIORS; MAGNETIC FLUX
510       PINNING EFFECT; 4.2 TO 300 K; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB Y/
510       SINGLE CRYSTALS.
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.
560       TEMPERATURE 4.2 E+00 TO 3.0 E+02 K.

DOCUMENT=            1615
 AUTH     = SCHAF
 DT       = 06
 KN       = B40891403989
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395218
002       B40891403989
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC BEHAVIOUR OF THE HIGH-T/SUB C/ OXIDE SUPERCONDUCTORS
100       EUBA/SUB 2/CU/SUB 3/O/SUB Y/ AND GDBA/SUB 2/CU/SUB 3/O/SUB Y/.
200       SCHAF, J.; PUREUR, P.; KUNZLER, J.V.
220       INSTITUTO DE FISICA DA UNIV. FEDERAL DO RIO GRANDE DO SUL, PORTO
220       ALEGRE, BRAZIL
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2187-8, REF.15
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS PERFORM DC MAGNETIC SUSCEPTIBILITY MEASUREMENTS ON THE
400       CERAMIC SUPERCONDUCTORS EUBA/SUB 2/CU/SUB 3/O/SUB 7/ AND GDBA/SUB
400       2/CU/SUB 3/O/SUB 7/ AS A FUNCTION OF TEMPERATURE, WHICH REVEAL BROKEN
400       ERGODICITY PHENOMENA ANALOGOUS TO THOSE FOUND IN SPIN-GLASSES.
500       BARIUM COMPOUNDS; EUROPIUM COMPOUNDS; GADOLINIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC SUSCEPTIBILITY.
510       TEMPERATURE DEPENDENCE; HIGH TEMPERATURE SUPERCONDUCTIVITY;
510       HIGH-T/SUB C/ OXIDE SUPERCONDUCTORS; DC MAGNETIC SUSCEPTIBILITY;
510       CERAMIC SUPERCONDUCTORS; BROKEN ERGODICITY PHENOMENA; EUBA/SUB
510       2/CU/SUB 3/O/SUB Y/; GDBA/SUB 2/CU/SUB 3/O/SUB Y/.
550       EUBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS EU/SS O/SS; GDBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS GD/SS O/SS.

DOCUMENT=            1616
 AUTH     = RATEAU
 DT       = 06
 KN       = B40891403991
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395220
002       B40891403991
010       CONFERENCE PAPER; EXPERIMENTAL.
100       HIGH TEMPERATURE SUPERCONDUCTIVITY IN BI-SM-SR-CA-CU-O.
200       RATEAU, M.; PANKOWSKA, H.; VARD, C.; GOROCHOV, O.; SURYANARAYANAN, R.
200       / BHANDAGE, G.T.
220       LAB. DE PHYSIQUE DES SOLIDES, CNRS, MEUDON, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2193-4, REF.9
350       ISSN 0449-1947, CODEN JPQCAK
400       X-RAY DIFFRACTION, RESISTIVITY AND MAGNETIC SUSCEPTIBILITY FOR THE
400       BISRCACUO (2224) SYSTEM AND 10% SM SUBSTITUTED FOR BI IN THE (2223)
400       SYSTEM ARE REPORTED. THE HIGH TEMPERATURE TRANSITION AT 110 K
400       DISAPPEARS WHEN SM IS SUBSTITUTED, WHILE THERE IS NO MAJOR CHANGE IN
400       THE LATTICE PARAMETERS. THE POSSIBLE ROLE OF BI-O PLANES IN THE
400       SUPERCONDUCTING MECHANISM IN THIS SYSTEM IS INDICATED.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF
500       CRYSTALLINE SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LATTICE CONSTANTS; MAGNETIC SUSCEPTIBILITY; SAMARIUM
500       COMPOUNDS; STRONTIUM COMPOUNDS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE; X-RAY DIFFRACTION EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; X-RAY DIFFRACTION; RESISTIVITY;
510       MAGNETIC SUSCEPTIBILITY; (2224) SYSTEM; (2223) SYSTEM; HIGH
510       TEMPERATURE TRANSITION; LATTICE PARAMETERS; BI-O PLANES;
510       SUPERCONDUCTING MECHANISM; 110 K; BI-SM-SR-CA-CU-O.
550       BISMSRCACUO/SS BI/SS CA/SS CU/SS SM/SS SR/SS O/SS.
560       TEMPERATURE 1.1 E+02 K.

DOCUMENT=            1617
 AUTH     = KISTENMA
 DT       = 06
 KN       = B40891403992
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395221
002       B40891403992
010       CONFERENCE PAPER; THEORETICAL.
100       EFFECT OF IONIC SIZE ON MAGNETIC ORDERING IN RBA/SUB 2/CU/SUB 3/O/SUB
100       Y/ CERAMICS.
200       KISTENMACHER, T.J.
220       APPL. PHYS. LAB., JOHNS HOPKINS UNIV., LAUREL, MD, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2195-6, REF.9
350       ISSN 0449-1947, CODEN JPQCAK
400       THE EFFECT OF VARIATIONS IN THE RADIUS OF THE RARE-EARTH ION R IN
400       RBA/SUB 2/CU/SUB 3/O/SUB Y/ CERAMICS ON THE NEEL TEMPERATURE (T/SUB
400       N/) AND MAGNETIC ENTROPY ARE IDENTIFIED. PARALLEL TRENDS IN T/SUB N/
400       AND THE DE GENNES FACTOR WITH RADIUS INDICATE THAT SUPEREXCHANGE
400       LEADS TO ANTIFERROMAGNETISM IN THE RARE-EARTH SUBLATTICE.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS; ENTROPY
500       OF SUBSTANCES; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       SUPERCONDUCTORS; NEEL TEMPERATURE; RARE EARTH COMPOUNDS;
500       SUPEREXCHANGE INTERACTIONS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; IONIC RADIUS; IONIC SIZE;
510       MAGNETIC ORDERING; RBA/SUB 2/CU/SUB 3/O/SUB Y/ CERAMICS; NEEL
510       TEMPERATURE; MAGNETIC ENTROPY; DE GENNES FACTOR; SUPEREXCHANGE;
510       ANTIFERROMAGNETISM; RARE-EARTH SUBLATTICE.
550       BA2/SS CU3/SS BA/SS CU/SS O/SS.

DOCUMENT=            1618
 AUTH     = IGUCHI
 DT       = 06
 KN       = B40891403993
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395222
002       B40891403993
010       CONFERENCE PAPER; EXPERIMENTAL.
100       OXYGEN DEFICIENCY DELTA AND ITS EFFECT ON T/SUB C/ IN SUPERCONDUCTING
100       Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
200       IGUCHI, K.; SOGA, Y.; ANDO, K.; SAITO, T.; SHINAGAWA, K.; TSUSHIMA,
200       T.
220       DEPT. OF PHYS., TOHO UNIV., CHIBA, JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2197-8, REF.5
350       ISSN 0449-1947, CODEN JPQCAK
400       Y/SUP 3+/ ION IS SUBSTITUTED WITH CA/SUP 2+/ ION IN Y/SUB 1/BA/SUB
400       2/CU/SUB 3/O/SUB 7- DELTA /, WHERE THE IONIC RADII OF BOTH IONS ARE
400       ALMOST THE SAME. THE SUBSTITUTION DOES NOT CHANGE THE AVERAGE VALENCE
400       OF CU ION, BUT THE AMOUNT OF OXYGEN DEFICIENCY DELTA INCREASES
400       LINEARLY WITH X UP TO X=0.15. CRYSTAL STRUCTURE, CRITICAL TEMPERATURE
400       T/SUB C/, MAGNETIZATION, DELTA , ELECTRICAL RESISTIVITY, AND HALL
400       EFFECT WERE MEASURED FOR THE CA SYSTEM, AND AN ABRUPT INCREASE IN
400       HALL MOBILITY MU WAS OBSERVED AT DELTA =0.56 CORRESPONDING TO THE
400       SHARP CHANGE OF DELTA THERE.
500       BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CARRIER MOBILITY; CRYSTAL ATOMIC
500       STRUCTURE OF INORGANIC COMPOUNDS; ELECTRICAL CONDUCTIVITY OF
500       CRYSTALLINE SEMICONDUCTORS AND INSULATORS; HALL EFFECT;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETISATION; STOICHIOMETRY;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O DEFICIENCY; CRYSTAL STRUCTURE;
510       IONIC RADII; SUBSTITUTION; AVERAGE VALENCE; CRITICAL TEMPERATURE;
510       MAGNETIZATION; ELECTRICAL RESISTIVITY; HALL EFFECT; HALL MOBILITY;
510       Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /; Y/SUB 1-X/CA/SUB X/BA/SUB
510       2/CU/SUB 3/O/SUB 7- DELTA /.
550       YCABA2CU3O/SS BA2/SS CU3/SS BA/SS CA/SS CU/SS O/SS Y/SS; Y1BA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1619
 AUTH     = KOJIMA
 DT       = 06
 KN       = B40891403994
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395223
002       B40891403994
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC SUSCEPTIBILITY OF (LA/SUB 1-X/CA/SUB X/)/SUB 2/CUO/SUB 4-Y/
100       (0<OR=X<OR=0.05).
200       KOJIMA, K.; OHBAYASHI, K.; UDAGAWA, M.; HIHARA, T.
220       HIROSHIMA UNIV., JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2199-200, REF.7
350       ISSN 0449-1947, CODEN JPQCAK
400       MAGNETIC SUSCEPTIBILITIES OF (LA/SUB 1-X/CA/SUB X/)/SUB 2/CUO/SUB
400       4-Y/ WITH X<OR=0.05 CHI WERE MEASURED AS A FUNCTION OF TEMPERATURE.
400       THE OXIDES ARE ANTIFERROMAGNETIC FOR X<0.01 AND SUPERCONDUCTIVE FOR
400       X>OR=0.035. FOR 0.01<OR=X<OR=0.025 CHI IS DECOMPOSED OF A CURIE-WEISS
400       AND A LINEAR TEMPERATURE DEPENDENT COMPONENTS. THE LATTER IS OF THE
400       SAME NATURE AS IN THE NORMAL STATE OF SUPERCONDUCTIVE OXIDES.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; CALCIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC
500       SUSCEPTIBILITY; PARAMAGNETIC PROPERTIES OF SUBSTANCES.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; MAGNETIC
510       SUSCEPTIBILITY; CURIE-WEISS LAW; COMPOSITION DEPENDENCE;
510       ANTIFERROMAGNETISM; (LA/SUB 1-X/CA/SUB X/)/SUB 2/CUO/SUB 4-Y/.
550       LACACUO/SS CA/SS CU/SS LA/SS O/SS.

DOCUMENT=            1620
 AUTH     = YING-CHA
 DT       = 06
 KN       = B40891403995
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395224
002       B40891403995
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC AND SUPERCONDUCTING PROPERTIES OF SUBSTITUTED YBA/SUB
100       2/(CU/SUB 1-X/M/SUB X/)/SUB 3/O/SUB 7/ COMPOUNDS (M=3D METAL).
200       YING-CHANG YANG; YUAN-BO ZHA; WEI-CHUN YUAN; JIAN LAN; ZUN-XIAO LIU;
200       GUO-ZHONG LI; YUN-XI SUN
220       DEPT. OF PHYS., PEKING UNIV., BEIJING, CHINA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2201-2, REF.2
350       ISSN 0449-1947, CODEN JPQCAK
400       THE STRUCTURAL, MAGNETIC AND SUPERCONDUCTING PROPERTIES OF THE MIXED
400       COMPOUNDS YBA/SUB 2/(CU/SUB 1-X/M/SUB X/)/SUB 3/O/SUB 7/, WHERE M
400       REPRESENTS 3D METALS, HAVE BEEN INVESTIGATED BY X-RAY DIFFRACTION,
400       ELECTRICAL RESISTIVITY AND MAGNETIC MEASUREMENTS. THE MAGNETIC
400       PROPERTIES IN THE NORMAL AND SUPERCONDUCTING STATES HAVE BEEN
400       MEASURED. THE SUBSTITUTING EFFECTS FOR COPPER AND THEIR RELATIONSHIP
400       TO THE STRUCTURE ARE DISCUSSED.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       ELECTRICAL CONDUCTIVITY OF CRYSTALLINE SEMICONDUCTORS AND INSULATORS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC PROPERTIES OF SUBSTANCES;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; 3D METAL SUBSTITUTION;
510       SUPERCONDUCTING PROPERTIES; X-RAY DIFFRACTION; ELECTRICAL
510       RESISTIVITY; MAGNETIC PROPERTIES; SUBSTITUTING EFFECTS; STRUCTURE.
550       BA2/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1621
 AUTH     = DALMAS
 DT       = 06
 KN       = B40891403996
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395225
002       B40891403996
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MOSSBAUER INVESTIGATION OF IRON DOPED YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
200       DALMAS DE REOTIER, P.; GIL, E.; VULLIET, P.; YAOUANC, A. / CHAUDOUET,
200       P.; SENATEUR, J.P.; WEISS, F.
220       CENG/DRF/SPH/MDIH, GRENOBLE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2203-4, REF.6
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS HAVE RECORDED /SUP 57/FE MOSSBAUER SPECTRA OF YBA/SUB
400       2/(CU/SUB 1-Y/FE/SUB Y/)/SUB 3/O/SUB 7-X/ POWDER SAMPLE AND
400       UNIAXIALLY ORIENTED POWDER FOR 0.01 <OR=Y<OR=0.1 AND X EQUIVALENT TO
400       -0.2 OR X EQUIVALENT TO 0.6. IN THE SUPERCONDUCTING X EQUIVALENT TO 0
400       COMPOUNDS WE SEE THREE SUBSPECTRA FOR Y>0.01 AND FOUR SUBSPECTRA FOR
400       Y=0.01. THESE SUBSPECTRA CORRESPOND TO DIFFERENT OXYGEN
400       CONFIGURATIONS AROUND THE IRON ATOMS. FROM THE ORIENTED YBA/SUB
400       2/(CU/SUB 0.94/FE/SUB 0.06/)/SUB 3/O/SUB 7.2/ AND YBA/SUB 2/(CU/SUB
400       0.9/FE/SUB 0.1/)/SUB 3/O/SUB 6.4/ COMPOUNDS THEY DEDUCE THAT MORE
400       THAN 90% IRON SUBSTITUTES IN THE CU(1) SITE. THE IRON MAGNETIC
400       MOMENTS ORDER ANTIFERROMAGNETICALLY AT EQUIVALENT TO 18 K AND
400       EQUIVALENT TO 1.5 K FOR THE X=-0.2, Y=0.06 AND X=0, Y=0.01 COMPOUNDS
400       RESPECTIVELY.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC MOMENTS; MOSSBAUER EFFECT;
500       NEEL TEMPERATURE; POWDERS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; COMPOSITION DEPENDENCE; O
510       CONFIGURATIONS; ANTIFERROMAGNETIC ORDER; /SUP 57/FE MOSSBAUER
510       SPECTRA; UNIAXIALLY ORIENTED POWDER; SUBSPECTRA; CU(1) SITE; MAGNETIC
510       MOMENTS; 18 K; 1.5 K; YBA/SUB 2/(CU/SUB 1-Y/FE/SUB Y/)/SUB 3/O/SUB
510       7-X/ POWDER SAMPLE.
550       YBA2CUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS.
560       TEMPERATURE 1.8 E+01 K; TEMPERATURE 1.5 E+00 K.

DOCUMENT=            1622
 AUTH     = BHARGAVA
 DT       = 06
 KN       = B40891403997
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395226
002       B40891403997
010       CONFERENCE PAPER; EXPERIMENTAL.
100        CHI /SUB DC/ AND MAGNETIC MOSSBAUER SPECTRA OF YBA/SUB 2/(CU/SUB
100       1-X/FE/SUB X/)/SUB 3/O/SUB 7- DELTA /.
200       BHARGAVA, S.C.; BHANDAGE, G.T.; DORMANN, J.L.; SAYOURI, S.; RENAUDIN,
200       P. / JOVE, J.; GOROCHOV, O.; RATEAU, M.; PANKOWSKA, H.;
200       SURYANARAYANAN, R.
220       LAB. DE MAGNETISME, CNRS, MEUDON, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2205-6, REF.2
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS FIND THE PARAMAGNETIC MOSSBAUER SPECTRA OF YBA/SUB
400       2/(CU/SUB X/FE/SUB 1-X/)/SUB 3/O/SUB 7- DELTA / CAN BE FITTED USING
400       SYMMETRIC DOUBLETS, IRON IS IN THE HIGH SPIN FE/SUP 3+/ STATE IN THE
400       OXIDE, AND THE PRESENT STUDY PROVIDES FURTHER SUPPORT TO THE PRESENCE
400       OF SPIN RELAXATION EFFECTS AT LOW TEMPERATURES.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       SUSCEPTIBILITY; MOSSBAUER EFFECT; PARAMAGNETIC PROPERTIES OF
500       SUBSTANCES; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; DC SUSCEPTIBILITY; PARAMAGNETIC
510       MOSSBAUER SPECTRA; SYMMETRIC DOUBLETS; HIGH SPIN FE/SUP 3+/ STATE;
510       SPIN RELAXATION EFFECTS; LOW TEMPERATURES; YBA/SUB 2/(CU/SUB
510       1-X/FE/SUB X/)/SUB 3/O/SUB 7- DELTA /.
550       YBA2CUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS.

DOCUMENT=            1623
 AUTH     = SHINJO
 DT       = 06
 KN       = B40891403998
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395227
002       B40891403998
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MOSSBAUER SPECTROSCOPIC STUDY OF FE-DOPED SUPERCONDUCTING CU-OXIDES.
200       SHINJO, T.; NASU, S.; KOHARA, T.; TAKABATAKE, T.; ISHIKAWA, M.
220       INST. FOR CHEM. RES., KYOTO UNIV., JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2207-8, REF.6
350       ISSN 0449-1947, CODEN JPQCAK
400       FE IMPURITIES PREFERENTIALLY SUBSTITUTE THE CU-I SITES (CHAIN) IN
400       SUPERCONDUCTING YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/ AND A MAGNETIC ORDER IS
400       STABILIZED IF THE FE CONCENTRATION INCREASES. /SUP 57/FE MOSSBAUER
400       RESULTS ON SUPERCONDUCTING CU-OXIDES AND ALSO RELATED
400       NONSUPERCONDUCTING ONES ARE PRESENTED.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       PROPERTIES OF SUBSTANCES; MAGNETIC SUPERCONDUCTORS; MOSSBAUER EFFECT;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; CU I CHAIN SITES; PREFERENTIAL
510       SUBSTITUTION; FE IMPURITIES; MAGNETIC ORDER; FE CONCENTRATION; /SUP
510       57/FE MOSSBAUER RESULTS; YBA/SUB 2/CU/SUB 3-X/FE/SUB X/O/SUB 7-Y/.
550       YBA2CUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS.

DOCUMENT=            1624
 AUTH     = RUBINSTE
 DT       = 06
 KN       = B40891403999
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395228
002       B40891403999
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MOSSBAUER HYPERFINE FIELDS IN RBA/SUB 2/(CU/SUB 0.97/FE/SUB
100       0.03/)/SUB 3/O/SUB 7-X/ (R=Y, PR, ER).
200       RUBINSTEIN, M.; HARFORD, M.Z. / SWARTZENDRUBER, L.J.; BENNETT, L.H.
220       NAVAL RES. LAB., WASHINGTON, DC, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2209-10, REF.7
350       ISSN 0449-1947, CODEN JPQCAK
400       ROOM TEMPERATURE /SUP 57/FE MOSSBAUER SPECTRA OF RBA/SUB 2/(CU/SUB
400       0.97/FE/SUB 0.03/)/SUB 3/O/SUB 7-X/ (R=Y, PR, ER) WERE OBTAINED FROM
400       SAMPLES WITH VARYING X. A MAGNETICALLY-SPLIT HYPERFINE FIELD SPECTRUM
400       WAS OBSERVED FOR THE MOST OXYGEN-DEFICIENT Y SAMPLE, FOR ALL THE PR
400       SAMPLES, AND FOR NONE OF THE ER SAMPLES.
500       BARIUM COMPOUNDS; CRYSTAL HYPERFINE FIELD INTERACTIONS; ERBIUM
500       COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MOSSBAUER EFFECT;
500       PRASEODYMIUM COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; ROOM TEMPERATURE; MOSSBAUER
510       HYPERFINE FIELDS; /SUP 57/FE MOSSBAUER SPECTRA; MAGNETICALLY-SPLIT
510       HYPERFINE FIELD SPECTRUM; 300 K; YBA/SUB 2/(CU/SUB 0.97/FE/SUB
510       0.03/)/SUB 3/O/SUB 7-X/; PRBA/SUB 2/(CU/SUB 0.97/FE/SUB 0.03/)/SUB
510       3/O/SUB 7-X/; ERBA/SUB 2/(CU/SUB 0.97/FE/SUB 0.03/)/SUB 3/O/SUB 7-X/.
550       YBA2CU0.97FE0.03O/SS CU0.97/SS FE0.03/SS BA2/SS BA/SS CU/SS FE/SS
550       O/SS Y/SS; PRBA2CU0.97FE0.03O/SS CU0.97/SS FE0.03/SS BA2/SS BA/SS
550       CU/SS FE/SS PR/SS O/SS; ERBA2CU0.97FE0.03O/SS CU0.97/SS FE0.03/SS
550       BA2/SS BA/SS CU/SS ER/SS FE/SS O/SS.
560       TEMPERATURE 3.0 E+02 K.

DOCUMENT=            1625
 AUTH     = BAUMINGE
 DT       = 06
 KN       = B40891404000
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395229
002       B40891404000
010       CONFERENCE PAPER; EXPERIMENTAL.
100       IRON MAGNETISM IN RBA/SUB 2/CU/SUB 3/O/SUB Z/.
200       BAUMINGER, E.R.; FELNER, I.; KOWITT, M.; NOWIK, I.
220       RACAH INST. OF PHYS., HEBREW UNIV., JERUSALEM, ISRAEL
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2211-12, REF.8
350       ISSN 0449-1947, CODEN JPQCAK
400       MAGNETIC SUSCEPTIBILITY AND /SUP 57/FE MOSSBAUER SPECTROSCOPY, OF
400       YBA/SUB 2/(CU/SUB 1-X/FE/SUB X/)/SUB 3/O/SUB Z/ X=0.01 TO 0.1, Z=5.9
400       TO 7.1 AT TEMPERATURES BETWEEN 4.1 K TO 480 K HAVE BEEN PERFORMED.
400       IRON IN THE CU2 SITE EXHIBITS MAGNETIC ORDER WITH T/SUB N/=415 K FOR
400       Z=6.1.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC SUSCEPTIBILITY; MOSSBAUER
500       EFFECT; NEEL TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; MAGNETIC SUSCEPTIBILITY; NEEL
510       TEMPERATURE; /SUP 57/FE MOSSBAUER SPECTROSCOPY; CU2 SITE; MAGNETIC
510       ORDER; 4.1 TO 480 K; 415 K; YBA/SUB 2/(CU/SUB 1-X/FE/SUB X/)/SUB
510       3/O/SUB Z/.
550       YBA2CUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS.
560       TEMPERATURE 4.1 E+00 TO 4.8 E+02 K; TEMPERATURE 4.15 E+02 K.

DOCUMENT=            1626
 AUTH     = ZHOU
 DT       = 06
 KN       = B40891404001
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395230
002       B40891404001
010       CONFERENCE PAPER; EXPERIMENTAL.
100       CONVERSION-ELECTRON AND TRANSMISSION MOSSBAUER STUDY OF YBA/SUB
100       2/(CU/SUB 1-X/FE/SUB X/)/SUB 3/O/SUB 7- DELTA /.
200       ZHOU, X.Z.; MORRISH, A.H.; PANKHURST, Q.A. / RAUDSEPP, M.
220       DEPT. OF PHYS., MANITOBA UNIV., WINNIPEG, MAN., CANADA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2213-14, REF.5
350       ISSN 0449-1947, CODEN JPQCAK
400       THE SURFACE AND BULK PROPERTIES OF THE HIGH-TEMPERATURE
400       SUPERCONDUCTOR YBA/SUB 2/(CU/SUB 1-X/FE/SUB X/)/SUB 3/O/SUB 7- DELTA
400       / WERE COMPARED BY MEANS OF CONVERSION-ELECTRON AND TRANSMISSION /SUP
400       57/FE MOSSBAUER SPECTROSCOPY AT ROOM TEMPERATURE. A MODEL, BASED ON
400       THE CRYSTAL STRUCTURE AND AN ENHANCED OXYGEN CONTENT AT THE GRAIN
400       SURFACES, IS PROPOSED.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MOSSBAUER EFFECT; STOICHIOMETRY;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; ENHANCED O CONTENT; CONVERSION
510       ELECTRON MOSSBAUER SPECTRA; SURFACE PROPERTIES; BULK PROPERTIES;
510       TRANSMISSION /SUP 57/FE MOSSBAUER SPECTROSCOPY; ROOM TEMPERATURE;
510       MODEL; CRYSTAL STRUCTURE; GRAIN SURFACES; 300 K; YBA/SUB 2/(CU/SUB
510       1-X/FE/SUB X/)/SUB 3/O/SUB 7- DELTA /.
550       YBA2CUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS.
560       TEMPERATURE 3.0 E+02 K.

DOCUMENT=            1627
 AUTH     = CYROT
 DT       = 06
 KN       = B40891404002
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395231
002       B40891404002
010       CONFERENCE PAPER; BIBLIOGRAPHY, THEORETICAL.
100       CRITICAL OVERVIEW OF THEORIES FOR HIGH-T/SUB C/ SUPERCONDUCTORS.
200       CYROT, M.
220       LAB. LOUIS NEEL, CNRS, GRENOBLE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2215-19, REF.56
350       ISSN 0449-1947, CODEN JPQCAK
400       THEORETICAL MODELS ARE DISCUSSED WHICH HAVE BEEN PROPOSED FOR THE NEW
400       HIGH-T/SUB C/ SUPERCONDUCTORS. SPECIAL ATTENTION IS PAID TO
400       ELECTRON-CORRELATIONS IN THOSE SYSTEMS. THEIR CONSEQUENCES FOR THE
400       SUPERCONDUCTING STATE ARE REVIEWED CRITICALLY.
500       HIGH-TEMPERATURE SUPERCONDUCTORS.
510       THEORETICAL MODELS CRITICAL OVERVIEW; HIGH TEMPERATURE
510       SUPERCONDUCTORS; HIGH-T/SUB C/ SUPERCONDUCTORS;
510       ELECTRON-CORRELATIONS; SUPERCONDUCTING STATE.

DOCUMENT=            1628
 AUTH     = MICNAS
 DT       = 06
 KN       = B40891404003
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395232
002       B40891404003
010       CONFERENCE PAPER; THEORETICAL.
100       SUPERCONDUCTIVITY WITH LOCAL ELECTRON PAIRING.
200       MICNAS, R. / RANNINGER, J.; ROBASZKIEWICZ, S.
220       INST. OF PHYS., A. MICKIEWICZ UNIV., POZNAN, POLAND
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2221-6, REF.17
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS REVIEW THE PRESENT THEORETICAL UNDERSTANDING AND
400       PREDICTIONS FOR SYSTEMS EXHIBITING REAL-SPACE PAIRING OF ELECTRONS.
400       AS THE ATTRACTIVE INTERACTION BETWEEN ELECTRONS INCREASES, THE
400       SUPERCONDUCTING PROPERTIES CAN CHANGE THE BCS LIKE BEHAVIOUR
400       GRADUALLY INTO SUPERFLUID LIKE CHARACTERISTICS. THE RELEVANCE OF
400       REAL-SPACE PAIRING FOR HIGH TEMPERATURE SUPERCONDUCTORS IS DISCUSSED.
500       COOPER PAIRS; HIGH-TEMPERATURE SUPERCONDUCTORS.
510       LOCAL ELECTRON PAIRING; REAL-SPACE PAIRING; ATTRACTIVE INTERACTION;
510       SUPERCONDUCTING PROPERTIES; BCS LIKE BEHAVIOUR; SUPERFLUID LIKE
510       CHARACTERISTICS; HIGH TEMPERATURE SUPERCONDUCTORS.

DOCUMENT=            1629
 AUTH     = LAVAGNA
 DT       = 06
 KN       = B40891404004
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395233
002       B40891404004
010       CONFERENCE PAPER; THEORETICAL.
100       HIGH-T/SUB C/ SUPERCONDUCTORS AS ALMOST-LOCALIZED SYSTEMS: RESONANCE
100       AND FLUCTUATIONS.
200       LAVAGNA, M.
220       LAB. LOUIS NEEL, CNRS, GRENOBLE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2227-8, REF.6
350       ISSN 0449-1947, CODEN JPQCAK
400       MANY EXPERIMENTAL RESULTS SEEM TO RELATE THE SUPERCONDUCTING OXIDES
400       TO THE PHENOMENON OF MOTT LOCALIZATION IN STRONGLY CORRELATED
400       SYSTEMS. THE AUTHOR GIVES A BRIEF REVIEW OF THE DIFFERENT THEORIES
400       DEVELOPED TO TREAT THE MOTT LOCALIZATION IN THE HUBBARD MODEL:
400       VARIATIONAL ANSATZ OF GUTZWILLER OR RVB ANSATZ, LEADING TO
400       FUNDAMENTALLY DIFFERENT GROUND STATES. IN THIS CONTEXT, HE PROPOSES A
400       NEW APPROACH WHICH TAKES ACCOUNT OF THE QUANTUM FLUCTUATIONS AROUND
400       THE MEAN-FIELD SOLUTION PROVIDED BY THE GUTZWILLER APPROXIMATION. HE
400       SHOWS HOW TO UNDERSTAND THE GROUND STATE IN TERMS OF A RESONANCE
400       (SPLIT BY THE MOTT GAP IN THE ALMOST-LOCALIZED REGIME) IN COMPLETE
400       ANALOGY WITH THE ABRIKOSOV-SUHL RESONANCE OF THE KONDO PROBLEM-HEAVY
400       FERMIONS. SUPERCONDUCTIVITY APPEARS AS INDUCED BY THE CONSTRAINED
400       INTERSITE CORRELATIONS DEVELOPED BY QUANTUM FLUCTUATIONS AROUND THIS
400       RESONANT STATE.
500       FLUCTUATIONS IN SUPERCONDUCTORS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       HUBBARD MODEL; LOCALISED ELECTRON STATES.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; RESONATING VALENCE BONDS;
510       ALMOST-LOCALIZED SYSTEMS; RESONANCE; SUPERCONDUCTING OXIDES; MOTT
510       LOCALIZATION; STRONGLY CORRELATED SYSTEMS; HUBBARD MODEL; VARIATIONAL
510       ANSATZ; RVB ANSATZ; GROUND STATES; QUANTUM FLUCTUATIONS; MEAN-FIELD
510       SOLUTION; GUTZWILLER APPROXIMATION; CONSTRAINED INTERSITE
510       CORRELATIONS; RESONANT STATE.

DOCUMENT=            1630
 AUTH     = TYAGI
 DT       = 06
 KN       = B40891404005
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395234
002       B40891404005
010       CONFERENCE PAPER; EXPERIMENTAL.
100       NONRESONANT MICROWAVE ABSORPTION: A MICROPROBE TO SUPERCONDUCTIVITY
100       IN Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
200       TYAGI, S.; BARSOUM, M. / RAO, K.V.; KARPE, N.
220       DREXEL UNIV., PHILADELPHIA, PA, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2229-30, REF.11
350       ISSN 0449-1947, CODEN JPQCAK
400       THE SUPERCONDUCTING TRANSITION ONSET TEMPERATURE IN YBACUO MONITORED
400       USING THE MICROWAVE ABSORPTION TECHNIQUE SHOWS LITTLE CHANGE AS A
400       FUNCTION OF LATTICE DISTORTION DUE TO OXYGEN DEPLETION INDICATING THE
400       PRESENCE OF THE ORTHORHOMBIC SUPERCONDUCTING PHASE EVEN IN HIGHLY
400       OXYGEN-DEPLETED SAMPLES.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MICROWAVE SPECTRA
500       OF INORGANIC SOLIDS; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O DEPLETION; NONRESONANT
510       ABSORPTION; MICROPROBE; SUPERCONDUCTING TRANSITION ONSET TEMPERATURE;
510       MICROWAVE ABSORPTION; LATTICE DISTORTION; ORTHORHOMBIC
510       SUPERCONDUCTING PHASE; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1631
 AUTH     = PORTIS
 DT       = 06
 KN       = B40891404006
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395235
002       B40891404006
010       CONFERENCE PAPER; THEORETICAL.
100       CRITICAL STATE MODEL FOR CUPRATE SUPERCONDUCTORS.
200       PORTIS, A.M.; STALDER, M.; STEFANICKI, G.; WALDNER, F.; WARDEN, M.
220       PHYS. INST., ZURICH UNIV., SWITZERLAND
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2231-2, REF.8
350       ISSN 0449-1947, CODEN JPQCAK
400       MICROWAVE ABSORPTION IN GRANULAR SUPERCONDUCTORS RESULTS FROM THE
400       MOTION OF FLUXONS WITHIN JOSEPHSON JUNCTIONS. CRITICAL STATE
400       DEVELOPMENT ACCOUNTS FOR THE SIGN REVERSALS AND ABSORPTION MINIMA
400       THAT HAVE BEEN OBSERVED WHEN THE MAGNETIC FIELD IS MODULATED OR
400       SCANNED WITH THE ASSUMPTION THAT FLUX FLOW IS PROPORTIONAL TO THE
400       GRADIENT OF THE FLUX DENSITY.
500       FLUX FLOW; GRANULAR STRUCTURE; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       JOSEPHSON EFFECT; MICROWAVE SPECTRA OF INORGANIC SOLIDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; CRITICAL STATE MODEL; MICROWAVE
510       ABSORPTION; CUPRATE SUPERCONDUCTORS; GRANULAR SUPERCONDUCTORS;
510       JOSEPHSON JUNCTIONS; SIGN REVERSALS; ABSORPTION MINIMA; FLUX FLOW;
510       FLUX DENSITY.

DOCUMENT=            1632
 AUTH     = POIRIER
 DT       = 06
 KN       = B40891404007
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395236
002       B40891404007
010       CONFERENCE PAPER; EXPERIMENTAL.
100       STUDY OF THE ANISOTROPIC PROPERTIES OF YBA/SUB 2/CU/SUB 3/O/SUB 7/
100       SINGLE CRYSTALS BY MICROWAVE ABSORPTION.
200       POIRIER, M.; QUIRION, G. / THIEL, J.P.; D'ORAZIO, F.
220       DEPT. DE PHYSIQUE, SHERBROOKE UNIV., QUE., CANADA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2233-4, REF.4
350       ISSN 0449-1947, CODEN JPQCAK
400       MICROWAVE ABSORPTION AT 16.8 GHZ HAS BEEN MEASURED ON AN EPOXY SAMPLE
400       CONTAINING 15% IN VOLUME OF SUPERCONDUCTING SINGLE CRYSTALS YBA/SUB
400       2/CU/SUB 3/O/SUB 7/ ALIGNED IN A MAGNETIC FIELD DURING RESIN
400       SOLIDIFICATION. THE ABSORPTION DATA ARE FOUND ANISOTROPIC AND THEY
400       HAVE BEEN STUDIED AS A FUNCTION OF THE MAGNETIC FIELD UP TO 8.5
400       TESLAS. THEY ARE DISCUSSED IN RELATION TO ALREADY AVAILABLE
400       INFORMATION ON TRANSPORT PROPERTIES AND MAGNETIC SUSCEPTIBILITY.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MICROWAVE SPECTRA
500       OF INORGANIC SOLIDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; ANISOTROPIC PROPERTIES; SINGLE
510       CRYSTALS; MICROWAVE ABSORPTION; EPOXY SAMPLE; MAGNETIC FIELD; RESIN
510       SOLIDIFICATION; 16.8 GHZ; YBA/SUB 2/CU/SUB 3/O/SUB 7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.
560       FREQUENCY 1.68 E+10 HZ.

DOCUMENT=            1633
 AUTH     = FRAIT
 DT       = 06
 KN       = B40891404008
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395237
002       B40891404008
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MEASUREMENTS OF THE MEISSNER-OCHSENFELD EFFECT OF HIGH-TEMPERATURE
100       SUPERCONDUCTORS BY MEANS OF FREE-RADICAL EPR.
200       FRAIT, Z.; FRAITOVA, D.; PUST, L.
220       INST. OF PHYS., CSAV, PRAHA, CZECHOSLOVAKIA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2235-6, REF.11
350       ISSN 0449-1947, CODEN JPQCAK
400       A METHOD FOR THE MEASUREMENT OF THE MEISSNER-OCHSENFELD AND INDUCED
400       FIELDS OF SUPERCONDUCTORS BY MEANS OF EPR OF SOLID FREE RADICALS IS
400       PRESENTED AND APPLIED FOR THE STUDY OF FIELDS OF Y-BA-CU-O
400       HIGH-TEMPERATURE SUPERCONDUCTORS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MEISSNER EFFECT;
500       PARAMAGNETIC RESONANCE OF FREE RADICALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; ELECTRON PARAMAGNETIC RESONANCE;
510       MEISSNER-OCHSENFELD EFFECT; FREE-RADICAL EPR; INDUCED FIELDS;
510       Y-BA-CU-O.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1634
 AUTH     = KOHORI
 DT       = 06
 KN       = B40891404009
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395238
002       B40891404009
010       CONFERENCE PAPER; EXPERIMENTAL.
100       NQR STUDY OF COPPER IN REBA/SUB 2/CU/SUB 3/O/SUB 7-Y/.
200       KOHORI, Y.; SHIBAI, H.; ODA, Y.; KITAOKA, Y. / KOHARA, T.; ASAYAMA,
200       K.
220       DEPT. OF MATER. PHYS., OSAKA UNIV., JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2237-8, REF.9
350       ISSN 0449-1947, CODEN JPQCAK
400       BY MEASURING T/SUB 1/ OF CU NQR LINES IN SM, ND, GD-BA/SUB 2/CU/SUB
400       3/O/SUB 7-Y/, THE SIGNALS WHICH ARE OBSERVED AT 20-23 MHZ AND 30-33
400       MHZ IN YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/ ARE ASSIGNED AS ARISING FROM THE
400       CU1 AND CU2 SITES RESPECTIVELY. 1/T/SUB 1/ FOLLOWS THE KORRINGA LAW
400       IN YBA/SUB 2/(CU/SUB 0.98/ZN/SUB 0.02/)/SUB 3/O/SUB 7-Y/ BELOW 90 K,
400       ALTHOUGH IT IS SATURATED ABOVE 100 K.
500       BARIUM COMPOUNDS; GADOLINIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; NEODYMIUM COMPOUNDS; NUCLEAR QUADRUPOLE RESONANCE;
500       NUCLEAR SPIN-LATTICE RELAXATION; SAMARIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; CU 1 SITES; CU 2 SITES; NUCLEAR
510       QUADRUPOLE RESONANCE; SPIN-LATTICE RELAXATION RATE; CU NQR LINES;
510       KORRINGA LAW; 20 TO 33 MHZ; YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/; YBA/SUB
510       2/(CU/SUB 0.98/ZN/SUB 0.02/)/SUB 3/O/SUB 7-Y/; SMBA/SUB 2/CU/SUB
510       3/O/SUB 7-Y/; NDBA/SUB 2/CU/SUB 3/O/SUB 7-Y/; GDBA/SUB 2/CU/SUB
510       3/O/SUB 7-Y/.
550       SMBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS SM/SS O/SS; NDBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS ND/SS O/SS; GDBA2CU3O/SS BA2/SS CU3/SS
550       BA/SS CU/SS GD/SS O/SS; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS
550       Y/SS; YBA2CU0.98ZN0.02O/SS CU0.98/SS ZN0.02/SS BA2/SS BA/SS CU/SS
550       ZN/SS O/SS Y/SS.
560       FREQUENCY 2.0 E+07 TO 3.3 E+07 HZ.

DOCUMENT=            1635
 AUTH     = SHRIVAST
 DT       = 06
 KN       = B40891404010
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395239
002       B40891404010
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MICROWAVE ABSORPTION AND MAGNETIC PENETRATION DEPTH IN NEW
100       SUPERCONDUCTOR YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
200       SHRIVASTAVA, K.N.
220       SCH. OF PHYS., HYDERABAD UNIV., INDIA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2239-40, REF.4
350       ISSN 0449-1947, CODEN JPQCAK
400       THE MICROWAVE SIGNAL UPON EXCITATION OF YBA/SUB 2/CU/SUB 3/O/SUB 7-
400       DELTA / BY 9.2 GHZ MICROWAVES HAS BEEN ANALYSED. THE CRITICAL
400       EXPONENT OF THE SIGNAL STRENGTH HAS BEEN FOUND TO BE (T/SUB C/-T)/SUP
400       2.7/. THE IMAGINARY PART OF THE COMPLEX SUSCEPTIBILITY AS A FUNCTION
400       OF MAGNETIC FIELD IS FOUND TO EXHIBIT FLUX QUANTIZATION.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC FLUX;
500       MAGNETIC SUSCEPTIBILITY; MICROWAVE SPECTRA OF INORGANIC SOLIDS;
500       PENETRATION DEPTH (SUPERCONDUCTIVITY); YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; MICROWAVE ABSORPTION; MAGNETIC
510       PENETRATION DEPTH; MICROWAVE SIGNAL; CRITICAL EXPONENT; SIGNAL
510       STRENGTH; IMAGINARY PART; COMPLEX SUSCEPTIBILITY; MAGNETIC FIELD;
510       FLUX QUANTIZATION; 9.2 GHZ; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       FREQUENCY 9.2 E+09 HZ.

DOCUMENT=            1636
 AUTH     = OZHOGIN
 DT       = 06
 KN       = B40891404011
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395240
002       B40891404011
010       CONFERENCE PAPER; THEORETICAL.
100       SPIN ANALOGIES IN THE THEORY OF SUPERCONDUCTIVITY. THREE-SUBLATTICE
100       MODEL OF Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7/.
200       OZHOGIN, V.I.; SAFONOV, V.L.
220       KURCHATOV INST. OF ATOMIC ENERGY, MOSCOW, USSR
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2241-2, REF.6
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS PROPOSE A SUPERCONDUCTOR MODEL CONSISTING OF THREE WEAKLY
400       INTERACTING SUBSYSTEMS SEPARATED IN SPACE, SIMILAR TO INTERACTING
400       SUBLATTICES IN NEEL FERRIMAGNETS, SUGGESTED BY THE IDEA THAT THE
400       ORDER PARAMETER OF HIGH-T/SUB C/ SUPERCONDUCTORS CHANGES ITS VALUE ON
400       AN ATOMIC SCALE.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; SPIN ANALOGY; SUPERCONDUCTOR
510       MODEL; THREE WEAKLY INTERACTING SUBSYSTEMS; INTERACTING SUBLATTICES;
510       ORDER PARAMETER; HIGH-T/SUB C/ SUPERCONDUCTORS; ATOMIC SCALE; Y/SUB
510       1/BA/SUB 2/CU/SUB 3/O/SUB 7/.
550       Y1BA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1637
 AUTH     = WANG
 DT       = 06
 KN       = B40891404012
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395241
002       B40891404012
010       CONFERENCE PAPER; THEORETICAL.
100       MAGNETIC INTERACTIONS IN HIGH-T/SUB C/ SUPERCONDUCTORS.
200       WANG, C.S.; STERNE, P.A.; MCQUEEN, P.G.; BHATTACHARYA, A.
220       DEPT. OF PHYS., MARYLAND UNIV., COLLEGE PARK, MD., USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2243-4, REF.13
350       ISSN 0449-1947, CODEN JPQCAK
400       THE FAILURES OF THE BAND THEORY TO STABILIZE THE OBSERVED
400       ANTIFERROMAGNETIC GROUND STATE IN LA/SUB 2/CUO/SUB 4/ ARE ANALYZED
400       BASED ON THE UNDERSTANDING OF MOTT INSULATORS AND OF HEAVY FERMION
400       SUPERCONDUCTORS. ASSUMING THAT THE SUPERCONDUCTING TRANSITION OCCURS
400       THROUGH BOSE CONDENSATION IN THE TWO-DIMENSIONAL CU-O/SUB 2/ PLANES,
400       THE AUTHORS PRESENT PHYSICAL ARGUMENTS THAT THE METALLIC NATURE OF
400       THE PLANES BETWEEN CU-O/SUB 2/ LAYERS MAY ENHANCE T/SUB C/
400       SIGNIFICANTLY.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC
500       PROPERTIES OF SUBSTANCES; SUPERCONDUCTING TRANSITION TEMPERATURE.
510       MAGNETIC INTERACTIONS; TRANSITION TEMPERATURE; HIGH TEMPERATURE
510       SUPERCONDUCTIVITY; HIGH-T/SUB C/ SUPERCONDUCTORS; ANTIFERROMAGNETIC
510       GROUND STATE; MOTT INSULATORS; HEAVY FERMION SUPERCONDUCTORS;
510       SUPERCONDUCTING TRANSITION; BOSE CONDENSATION; TWO-DIMENSIONAL
510       CU-O/SUB 2/ PLANES; CU-O/SUB 2/ LAYERS; LA/SUB 2/CUO/SUB 4/.
550       LA2CUO4/SS LA2/SS CU/SS LA/SS O4/SS O/SS.

DOCUMENT=            1638
 AUTH     = OKADA
 DT       = 06
 KN       = B40891404013
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395242
002       B40891404013
010       CONFERENCE PAPER; THEORETICAL.
100       THEORY OF CU 2P XPS AND 3P RESONANT XPS IN OXIDE SUPERCONDUCTORS.
200       OKADA, K.; KOTANI, A.
220       DEPT. OF PHYS., TOHOKU UNIV., SENDAI, JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2245-6, REF.5
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS HAVE ANALYSED CU 2P-XPS AND 3P RESONANT XPS SPECTRA OF
400       (LA/SUB X/SR/SUB 1-X/)/SUB 2/CUO/SUB 4/ (LACUO), CONSISTENTLY BY
400       USING THE IMPURITY ANDERSON MODEL. TO TAKE ACCOUNT OF THE SYMMETRY OF
400       CU SITE, FIVE FILLED VALENCE BANDS ARE INTRODUCED. COMPARISON BETWEEN
400       LACUO, YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / AND CUO IS ALSO MADE.
500       ANDERSON MODEL; HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM
500       COMPOUNDS; STRONTIUM COMPOUNDS; VALENCE BANDS; X-RAY PHOTOELECTRON
500       SPECTRA.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; X-RAY PHOTOEMISSION SPECTRA; SITE
510       SYMMETRY; CU 2P-XPS; 3P RESONANT XPS; IMPURITY ANDERSON MODEL; FILLED
510       VALENCE BANDS; (LA/SUB X/SR/SUB 1-X/)/SUB 2/CUO/SUB 4/; LACUO;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /; CUO.
550       CUO/BIN CU/BIN O/BIN; LASRCUO4/SS CU/SS LA/SS O4/SS SR/SS O/SS;
550       LACUO/SS CU/SS LA/SS O/SS; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS
550       Y/SS.

DOCUMENT=            1639
 AUTH     = KASPERCZ
 DT       = 06
 KN       = B40891404014
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395243
002       B40891404014
010       CONFERENCE PAPER; THEORETICAL.
100       ROLE OF TRANSITION-METAL SUBSTITUTION IN HIGH-TEMPERATURE
100       SUPERCONDUCTING OXIDES OF THE YBACUO TYPE.
200       KASPERCZYK, J.
220       PHYS. INST., PEDAGOGICAL UNIV., CZESTOCHOWA, POLAND
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2247-8, REF.11
350       ISSN 0449-1947, CODEN JPQCAK
400       THE INFLUENCE OF TRANSITION-METAL SUBSTITUTION ON COPPER OXIDE
400       SUPERCONDUCTORS IS PRESENTED. INSUFFICIENCY OF CLASSICAL BCS-LIKE
400       MODELS IS POINTED OUT. FOLLOWING CHAKRAVERTY (1987) THE
400       UNCONVENTIONAL SUPERCONDUCTIVITY RESEMBLING THE BOSE-EINSTEIN
400       CONDENSATION OF LOCALIZED HOLE PAIRS IS CONSIDERED. THIS MODEL IS
400       ABLE TO EXPLAIN, AT LEAST QUALITATIVELY, THE MAIN PROPERTIES OF THE
400       YBA/SUB 2/(CU/SUB 1-X/M/SUB X/)/SUB 3/O/SUB 7-Y/ COMPOUNDS
400       (M-TRANSITION METAL).
500       BARIUM COMPOUNDS; BOSON SYSTEMS; COOPER PAIRS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; TRANSITION-METAL SUBSTITUTION;
510       HIGH-TEMPERATURE SUPERCONDUCTING OXIDES; CLASSICAL BCS-LIKE MODELS;
510       UNCONVENTIONAL SUPERCONDUCTIVITY; BOSE-EINSTEIN CONDENSATION;
510       LOCALIZED HOLE PAIRS; YBA/SUB 2/(CU/SUB 1-X/M/SUB X/)/SUB 3/O/SUB
510       7-Y/; YBACUO.
550       BA2/SS BA/SS CU/SS O/SS Y/SS; YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1640
 AUTH     = GOUGH
 DT       = 06
 KN       = B40891404015
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395244
002       B40891404015
010       CONFERENCE PAPER; EXPERIMENTAL.
100       JOSEPHSON EFFECTS IN CERAMIC SUPERCONDUCTORS AND THEIR APPLICATION TO
100       SQUID MAGNETOMETRY.
200       GOUGH, C.E.
220       SUPERCOND. RES. GROUP, BIRMINGHAM UNIV., UK
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2075-9, REF.27
350       ISSN 0449-1947, CODEN JPQCAK
400       A BRIEF REVIEW IS GIVEN OF JOSEPHSON EFFECTS IN HIGH-T/SUB C/
400       SUPERCONDUCTORS WITH SPECIFIC REFERENCE TO CERAMIC MATERIAL
400       PROPERTIES AND DEVICE APPLICATIONS. THE DEVELOPMENT OF
400       LIQUID-NITROGEN COOLED RF AND DC SQUIDS FOR ULTRASENSITIVE
400       MAGNETOMETRY WILL BE DESCRIBED. FIELD SENSITIVITIES OF BETTER THAN
400       10/SUP -12/ T/ SQUARE ROOT HZ HAVE ALREADY BEEN ACHIEVED BUT
400       1/F-NOISE BECOMES IMPORTANT AT LOW FREQUENCIES.
500       CERAMICS; HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT; SQUIDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECTS; CERAMIC; SQUID
510       MAGNETOMETRY; 1/F-NOISE.

DOCUMENT=            1641
 AUTH     = TARASCON
 DT       = 06
 KN       = B40891404016
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395245
002       B40891404016
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SYNTHESIS AND CHEMISTRY OF THE NEW Y-BASED AND BI-BASED HIGH
100       TEMPERATURE SUPERCONDUCTING PEROVSKITES.
200       TARASCON, J.M.; BARBOUX, P.; MICELI, P.F.; BAGLEY, B.G.; GREENE,
200       L.H.; HULL, G.W.; GIROUD, M.
220       BELLCORE, RED-BANK, NJ, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2081-6, REF.21
350       ISSN 0449-1947, CODEN JPQCAK
400       CHEMICAL SYNTHESIS OF THE NEW HIGH T/SUB C/ OXIDES USING SOLID STATE
400       REACTIONS OF SOLUTION TECHNIQUES IS SHOWN. A SOLUTION PROCESS WHICH
400       ALLOWS THE PREPARATION OF BOTH HOMOGENEOUS AND DENSE CERAMICS AND OF
400       SUPERCONDUCTING THICK FILMS HAS BEEN DEVELOPED FOR THE YBA/SUB
400       2/CU/SUB 3/O/SUB 7/ SYSTEM. PHYSICAL MEASUREMENTS PERFORMED ON
400       HOMOGENEOUS YBA/SUB 2/CU/SUB 3-X/CO/SUB X/O/SUB Y/ SAMPLES HAVE SHOWN
400       THAT THE CO SUBSTITUTION, ASSOCIATED WITH AN UPTAKE OF OXYGEN, TAKES
400       PLACE ON THE CU-O CHAINS AND THAT T/SUB C/ IS DEPRESSED, LEADING
400       ULTIMATELY TO ANTIFERROMAGNETIC INSULATORS WHOSE MAGNETIC STRUCTURES
400       ARE SHOWN. THREE PHASES OF GENERAL FORMULA BI/SUB 2/SR/SUB 2/CA/SUB
400       N-1/CU/SUB N/O/SUB Y/ WITH N=1,2 AND 3 HAVE BEEN ISOLATED IN THE BI
400       SYSTEM AND CHARACTERIZED FOR THEIR STRUCTURAL AND PHYSICAL
400       PROPERTIES. THESE PHASES CRYSTALLIZE IN THE SAME PSEUDOTETRAGONAL
400       UNIT CELL DIFFERING ONE FROM THE NEXT BY THE STACKING SEQUENCE ALONG
400       THE C-AXIS, WITH THE MAIN FEATURE BEING THE PRESENCE OF A SHEARED
400       BI-O DOUBLE LAYER. THE T'/SUB C/S OF THE N=1,2 AND 3 PHASES ARE 10 K,
400       85 K AND 110 K RESPECTIVELY, BUT BECAUSE OF PHASE INTERGROWTH, THESE
400       VALUES DEPEND UPON SAMPLE PROCESSING, MAKING CHEMICAL SUBSTITUTIONS
400       WITHIN THE BI SYSTEM QUITE COMPLEX AS IS DISCUSSED. FINALLY, THE
400       AUTHORS SUCCEEDED IN MAKING SUPERCONDUCTING THICK FILMS (HAVING ZERO
400       RESISTANCE AROUND 100 K) OF THE BI-BASED AND T1-BASED MATERIALS VIA
400       THE DECOMPOSITION OF AQUEOUS-GLYCEROL SOLUTIONS CONTAINING THE SALTS
400       OF THE ELEMENTS.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRYSTAL
500       ATOMIC STRUCTURE OF INORGANIC COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MATERIALS PREPARATION; STRONTIUM COMPOUNDS; THICK
500       FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; PEROVSKITES; SYNTHESIS; SOLID STATE
510       REACTIONS; SOLUTION TECHNIQUES; CERAMICS; THICK FILMS;
510       ANTIFERROMAGNETIC INSULATORS; MAGNETIC STRUCTURES; PSEUDOTETRAGONAL
510       UNIT CELL; PHASE INTERGROWTH; YBA/SUB 2/CU/SUB 3/O/SUB 7/; YBA/SUB
510       2/CU/SUB 3-X/CO/SUB X/O/SUB Y/; BI/SUB 2/SR/SUB 2/CA/SUB N-1/CU/SUB
510       N/O/SUB Y/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS; YBA2CUCOO/SS
550       BA2/SS BA/SS CO/SS CU/SS O/SS Y/SS; BI2SR2CACUO/SS BI2/SS SR2/SS
550       BI/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1642
 AUTH     = UEMURA
 DT       = 06
 KN       = B40891404017
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395246
002       B40891404017
010       CONFERENCE PAPER; EXPERIMENTAL.
100        MU SR STUDIES OF HIGH T/SUB C/ SUPERCONDUCTIVITY.
200       UEMURA, Y.J.; STERNLIEB, B.J. / COX, D.E.; EMERY, V.J.; MOODENBAUGH,
200       A.; SUENAGA, M.; BREWER, J.H.; CAROLAN, J.F.; HARDY, W.; KADONO, R.;
200       KEMPTON, J.R.; KIEFF, R.F.; KREITZMAN, S.R.; LUKE, G.M.; MULHERN, P.;
200       RISEMAN, T.; WILLIAMS, D.L.; YANG, B.X.; KOSSLER, W.J.; YU, X.H.;
200       SCHONE, H.; STRONACH, C.E.; GOPALAKRISHNAN, J.; SUBRAMANIAN, M.A.;
200       SLEIGHT, A.W.; HART, H.; LAY, K.W.; TAKAGI, H.; UCHIDA, S.; HIDAKA,
200       Y.; MURAKAMI, T.; ETEMAD, S.; BARBOUX, P.; KEANE, D.; LEE, V.;
200       JOHNSTON, D.C.
220       DEPT. OF PHYS., COLUMBIA UNIV., NEW YORK, NY, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2087-92, REF.21
350       ISSN 0449-1947, CODEN JPQCAK
400       RECENT PROGRESS OF MU SR MEASUREMENTS ON HIGH-T/SUB C/ AND RELATED
400       SYSTEMS IS PRESENTED. STATIC MAGNETIC ORDER HAS BEEN FOUND AND
400       STUDIED IN LA/SUB 2/CUO/SUB 4/, (LA/SUB 2-X/SR/SUB X/)CUO/SUB 4/,
400       YBA/SUB 2/CU/SUB 3/O/SUB X/, YBA/SUB 2/(CU/SUB 3-X/CO/SUB X/)O/SUB
400       7/, AS WELL AS IN BI/SUB 2/SR/SUB 2/YCU/SUB 2/O/SUB 8/. NO MAGNETIC
400       ORDER WAS FOUND IN THE 3-DIMENSIONAL SYSTEMS BABIO/SUB 3/, BA(PB/SUB
400       0.1/BI/SUB 0.9/)O/SUB 3/, AND (BAK) BIO/SUB 3/ ABOVE T=10 K. THE
400       ANISOTROPY OF THE MAGNETIC FIELD PENETRATION DEPTH LAMBDA HAS BEEN
400       OBSERVED BY USING A C-AXIS ALIGNED SINTERED PELLET SPECIMEN OF
400       YBA/SUB 2/CU/SUB 3/O/SUB 7/. THE TEMPERATURE DEPENDENCE OF LAMBDA
400       /SUB /// (FOR C// H/SUB EXT/) INDICATES ISOTROPIC SUPERCONDUCTING
400       ENERGY GAP WITHOUT ANY ANOMALIES. BASED ON THE MUON SPIN RELAXATION
400       RATE SIGMA OBSERVED IN (RANDOM) PELLET SPECIMENS OF VARIOUS
400       HIGH-T/SUB C/ SUPERCONDUCTORS, THE AUTHORS FOUND A LINEAR RELATION
400       BETWEEN T/SUB C/ AND SIGMA VARIES AS 1/ LAMBDA /SUP 2/ VARIES AS
400       N/SUB S//M*, WHICH SUGGESTS A HIGH ENERGY SCALE OF SUPERCONDUCTING
400       COUPLING. DEVIATIONS FROM THIS LINEAR RELATION ARE SEEN FOR SAMPLES
400       WITH LARGE CARRIER CONCENTRATIONS N/SUB S/.
500       CARRIER DENSITY; HIGH-TEMPERATURE SUPERCONDUCTORS; MUON PROBES;
500       SUPERCONDUCTING ENERGY GAP.
510       HIGH TEMPERATURE SUPERCONDUCTORS;  MU SR MEASUREMENTS; ENERGY GAP;
510       MUON SPIN RELAXATION; CARRIER CONCENTRATIONS; LA/SUB 2/CUO/SUB 4/;
510       (LA/SUB 2-X/SR/SUB X/)CUO/SUB 4/; YBA/SUB 2/CU/SUB 3/O/SUB X/;
510       YBA/SUB 2/(CU/SUB 3-X/CO/SUB X/)O/SUB 7/; BI/SUB 2/SR/SUB 2/YCU/SUB
510       2/O/SUB 8/; BABIO/SUB 3/; BA(PB/SUB 0.1/BI/SUB 0.9/)O/SUB 3/;
510       (BAK)BIO/SUB 3/.
550       BAKBIO3/SS BA/SS BI/SS O3/SS K/SS O/SS; LA2CUO4/SS LA2/SS CU/SS LA/SS
550       O4/SS O/SS; LASRCUO4/SS CU/SS LA/SS O4/SS SR/SS O/SS; YBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; YBA2CUCOO7/SS BA2/SS BA/SS CO/SS
550       CU/SS O7/SS O/SS Y/SS; BI2SR2YCU2O8/SS BI2/SS CU2/SS SR2/SS BI/SS
550       CU/SS O8/SS SR/SS O/SS Y/SS; BABIO3/SS BA/SS BI/SS O3/SS O/SS;
550       BAPB0.1BI0.9O3/SS BI0.9/SS PB0.1/SS BA/SS BI/SS O3/SS PB/SS O/SS.

DOCUMENT=            1643
 AUTH     = WORTHING
 DT       = 06
 KN       = B40891404018
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395247
002       B40891404018
010       CONFERENCE PAPER; EXPERIMENTAL.
100       THE EFFECT OF FLUX PINNING AND FLUX CREEP ON MAGNETIC MEASUREMENTS OF
100       SINGLE CRYSTAL Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/.
200       WORTHINGTON, T.W.; YESHURUN, Y.; MALOZEMOFF, A.P.; YANDROFSKI, R.M.;
200       HOLTZBERG, F.H.; DINGER, T.R.
220       IBM THOMAS J. WATSON RES. CENTER, YORKTOWN HEIGHTS, NY, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2093-8, REF.28
350       ISSN 0449-1947, CODEN JPQCAK
400       A SERIES OF NONCONTACT MAGNETIC MEASUREMENTS ON HIGH-QUALITY SINGLE
400       CRYSTALS OF Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/ INDICATE THAT THE
400       SUPERCONDUCTING PROPERTIES ARE THOSE OF A CONVENTIONAL ANISOTROPIC
400       SUPERCONDUCTOR. HOWEVER, THE MAGNETIC PROPERTIES ARE PROFOUNDLY
400       AFFECTED BY FLUX PINNING. THE AUTHORS DEVELOP A CLASSICAL, THERMALLY
400       ACTIVATED FLUX FLOW MODEL WHICH THEY USE TO EXTRACT H/SUB C1/ FROM
400       THE DECAY OF THE REMNANT MAGNETIZATION AT LOW TEMPERATURE AND TO
400       EXPLAIN THE LOGARITHMIC FREQUENCY DEPENDENCE AND THE CURVATURE SEEN
400       IN THE APPARENT H/SUB C2/ NEAR T/SUB C/.
500       BARIUM COMPOUNDS; FLUX CREEP; FLUX PINNING; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SUPERCONDUCTING CRITICAL FIELD; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; CRITICAL FIELD; FLUX PINNING; FLUX
510       CREEP; FLUX FLOW MODEL; REMNANT MAGNETIZATION; Y/SUB 1/BA/SUB
510       2/CU/SUB 3/O/SUB 7-X/.
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1644
 AUTH     = SENOUSSI
 DT       = 06
 KN       = B40891404019
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395248
002       B40891404019
010       CONFERENCE PAPER; EXPERIMENTAL.
100       CRITICAL FIELDS AND CURRENT DENSITIES IN YBA/SUB 2/CU/SUB 3/O/SUB 7-
100       DELTA /.
200       SENOUSSI, S.; OUSSENA, M. / AGUILLON, C.; TREMBLAY, P.
220       LAB. DE PHYSIQUE DES SOLIDES, UNIV., PARIS-SUD, ORSAY, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2099-103, REF.7
350       ISSN 0449-1947, CODEN JPQCAK
400       AN EXTENSIVE INVESTIGATION OF THE MAGNETIC AND TRANSPORT PROPERTIES
400       OF THE NEW HIGH-T/SUB C/ SUPERCONDUCTORS IS REPORTED. THE MAGNETIC
400       CYCLE OF GRANULAR MATERIALS IS CHARACTERIZED BY A LOW FIELD (H<H/SUB
400       C1/) STRUCTURE WHICH IS SHAPE DEPENDENT WHEREAS THE HIGH FIELD
400       MAGNETIC CYCLE IS SHAPE INDEPENDENT. ON THE CONTRARY, SINGLE CRYSTALS
400       SHOW NO LOW-H STRUCTURE BUT A SHAPE DEPENDENT MAGNETIZATION AT HIGH
400       FIELD. THE MAGNETIC CRITICAL-CURRENT DENSITY DEDUCED FROM THE
400       HIGH-FIELD CYCLE IS ABOUT THE SAME ( APPROXIMATELY 10/SUP 6/ A/CM/SUP
400       2/ AT 4.2 K) IN THE TWO MATERIALS. THE TRANSPORT CURRENT (
400       APPROXIMATELY 10/SUP 3/ A/CM/SUP 2/ AT 4.2 K) IS RELATED TO THE LOW-H
400       MAGNETIC CYCLE BY A SILSBEE-LIKE RULE AND IS GOVERNED BY THE
400       JOSEPHSON-JUNCTIONS BETWEEN THE GRAINS. THE ABOVE DATA ARE
400       INTERPRETED IN TERMS OF A SIMPLE MODEL BASED ON THE FERREL-PRANGE AND
400       AMBEGAOKAR-BARATOFF EQUATIONS AND ON THE CRITICAL STATE CONCEPT.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT; MAGNETISATION;
500       SUPERCONDUCTING CRITICAL FIELD; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; CRITICAL FIELDS; FERREL-PRANGE
510       EQUATIONS; CURRENT DENSITIES; GRANULAR MATERIALS; MAGNETIZATION;
510       CRITICAL-CURRENT DENSITY; JOSEPHSON-JUNCTIONS; AMBEGAOKAR-BARATOFF
510       EQUATIONS; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1645
 AUTH     = SALAMON
 DT       = 06
 KN       = B40891404020
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395249
002       B40891404020
010       CONFERENCE PAPER; EXPERIMENTAL.
100       CRITICAL BEHAVIOR OF THE FIELD-DEPENDENT SPECIFIC HEAT OF A YBA/SUB
100       2/CU/SUB 3/O/SUB 7-X/ SINGLE CRYSTAL.
200       SALAMON, M.B.; INDERHEES, S.E.; RICE, J.P.; PAZOL, B.G.; GINSBERG,
200       D.M.
220       DEPT. OF PHYS., ILLINOIS UNIV., URBANA, IL, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2105-6, REF.6
350       ISSN 0449-1947, CODEN JPQCAK
400       THE HEAT CAPACITY ANOMALY OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ AT T/SUB
400       C/ IS REDUCED IN AMPLITUDE AND BROADENED UPON APPLICATION OF A
400       MAGNETIC FIELD ALONG THE C-AXIS. HOWEVER, THE SHIFT, AS MEASURED BY
400       THE POINT OF MAXIMUM INCREASE WITH DECREASING TEMPERATURE, IS MUCH
400       SMALLER THAN EXPECTED FROM ESTIMATES OF THE UPPER CRITICAL FIELD. THE
400       POSSIBILITY OF CRITICAL BEHAVIOR IS DISCUSSED.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SPECIFIC HEAT OF
500       SOLIDS; SUPERCONDUCTING CRITICAL FIELD; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SPECIFIC HEAT; UPPER CRITICAL
510       FIELD; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1646
 AUTH     = CELANI
 DT       = 06
 KN       = B40891404021
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395250
002       B40891404021
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ON THE FIELD COOLED SUSCEPTIBILITY OF SUPERCONDUCTING YBACUO SAMPLES.
200       CELANI, F. / MESSI, R.; SPARVIERI, N.; PACE, S.; SAGGESE, A.;
200       GIOVANNELLA, C.; FRUCHTER, L.; CHAPPERT, C.
220       INFN, LAB. NAZ. FRASCATI, ITALY
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2107-8, REF.6
350       ISSN 0449-1947, CODEN JPQCAK
400       USING A SQUID MAGNETOMETER, THE AUTHORS HAVE STUDIED THE
400       MAGNETIZATION OF DIFFERENT SAMPLES OF HIGH T/SUB C/ SINTERED
400       SUPERCONDUCTORS IN FIELD COOLED (FC) CONDITIONS. DEPENDING ON THE
400       SAMPLE, VERY DIFFERENT TRENDS IN THE VARIATION OF THE SATURATION
400       VALUE OF THE FC MAGNETIZATION WITH THE FIELD HAVE BEEN OBSERVED; IN
400       PARTICULAR FOR GOOD SAMPLES IT INCREASES PROGRESSIVELY WITH
400       DECREASING H. THEY ASCRIBE THE DIFFERENCE IN BEHAVIOUR TO DIFFERENT
400       STRENGTHS OF COUPLING BETWEEN GRAINS, DEPENDING ON THE PREPARATION
400       CONDITIONS. DATA OBTAINED BY COMPLEMENTARY TECHNIQUES SUPPORT THIS
400       EXPLANATION.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       SUSCEPTIBILITY; MAGNETISATION; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; FIELD COOLED SUSCEPTIBILITY; SQUID
510       MAGNETOMETER; MAGNETIZATION; YBACUO.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1647
 AUTH     = SULPICE
 DT       = 06
 KN       = B40891404022
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395251
002       B40891404022
010       CONFERENCE PAPER; EXPERIMENTAL.
100       INTRINSIC GEOMETRICAL BOUNDARIES FOR THE CRITICAL CURRENTS INSIDE
100       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ SINGLE CRYSTALS.
200       SULPICE, A.; LEJAY, P.; TOURNIER, R.; CHAUSSY, J.
220       CENTRE DE RECHERCHES SUR LES TRES BASSES TEMP., CNRS, GRENOBLE,
220       FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2109-10, REF.11
350       ISSN 0449-1947, CODEN JPQCAK
400       MAGNETIZATION CURVES HAVE BEEN MEASURED ON YBA/SUB 2/CU/SUB 3/O/SUB
400       7-X/ SINGLE CRYSTALS OF VARIOUS SIZE, AND COMPARED WITH OTHER RESULTS
400       PUBLISHED IN THE LITERATURE. THE IRREVERSIBLE MAGNETIZATION DOES NOT
400       FOLLOW THE SCALING LAW PREDICTED BY THE BEAN MODEL. THE AUTHORS
400       CONCLUDE THAT EVEN THE SUPERCONDUCTING CRYSTALS CONTAIN NORMAL
400       BARRIERS OR WEAK LINKS WHICH LIMIT THE SPATIAL SCALE OF
400       SUPERCURRENTS.
500       BARIUM COMPOUNDS; CRITICAL CURRENTS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MAGNETISATION; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; GEOMETRICAL BOUNDARIES; CRITICAL
510       CURRENTS; IRREVERSIBLE MAGNETIZATION; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1648
 AUTH     = BORDET
 DT       = 06
 KN       = B40891404023
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395252
002       B40891404023
010       CONFERENCE PAPER; EXPERIMENTAL.
100       NEW SUPERCONDUCTING OXIDES IN THE BI-SR-CA-CU-O SYSTEM: MAGNETIC
100       MEASUREMENTS AND STRUCTURAL DETERMINATION.
200       BORDET, P.; CAPPONI, J.J.; CHAILLOUT, C.; CHENAVAS, J.; GIORDANENGO,
200       B.; GODINHO, M.; HEWAT, A.W.; HEWAT, E.A.; HODEAU, J.L.; LEJAY, P.;
200       MAREZIO, M.; DE RANGO, P.; SPIESER, A.M.; SULPICE, A.; THOLENCE,
200       J.L.; TOURNIER, R.; TRANQUI, D.
220       LAB. DE CRISTALLOGRAPHIE, CNRS, GRENOBLE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2111-2, REF.7
350       ISSN 0449-1947, CODEN JPQCAK
400       DETAILED NEUTRON DIFFRACTION STRUCTURE ANALYSIS OF BI/SUB 2/SR/SUB
400       2/CACU/SUB 2/O/SUB 8/ IS REPORTED. THE EFFECTS OF PB-SUBSTITUTION ON
400       BI/SUB 2/SR/SUB 2/CACU/SUB 2/O/SUB 8/ AND BI/SUB 2/SR/SUB 2/CUO/SUB
400       6/ ARE DISCUSSED, AND MAGNETIZATION MEASUREMENT RESULTS ON THE 110 K
400       PHASE IN THE BI-SR-CA-CU-O SYSTEM ARE GIVEN.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETISATION;
500       NEUTRON DIFFRACTION EXAMINATION OF MATERIALS; STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; NEUTRON DIFFRACTION; STRUCTURE;
510       MAGNETIZATION; BI/SUB 2/SR/SUB 2/CACU/SUB 2/O/SUB 8/; BIPBSRCACUO.
550       BIPBSRCACUO/SS BI/SS CA/SS CU/SS PB/SS SR/SS O/SS; BI2SR2CACU2O8/SS
550       BI2/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS O8/SS SR/SS O/SS.

DOCUMENT=            1649
 AUTH     = SHIRANE
 DT       = 06
 KN       = B40891404024
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395253
002       B40891404024
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SPIN CORRELATIONS IN HIGH T/SUB C/ SUPERCONDUCTORS.
200       SHIRANE, G.
220       BROOKHAVEN NAT. LAB., UPTON, NY, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2113-17, REF.18
350       ISSN 0449-1947, CODEN JPQCAK
400       A REVIEW IS GIVEN OF CURRENT NEUTRON SCATTERING EXPERIMENTS ON LA/SUB
400       2-X/SR/SUB X/CUO/SUB 4/ AND YBA/SUB 2/CU/SUB 3/O/SUB 6+X/. LARGE
400       SINGLE CRYSTALS HAVE NOW BEEN SUCCESSFULLY GROWN FOR BOTH OF THESE
400       HIGH T/SUB C/ SUPERCONDUCTORS AND EXTENSIVE MEASUREMENTS ARE BEING
400       CARRIED OUT ON MAGNETIC EXCITATIONS FOR WIDE RANGES OF TEMPERATURE
400       AND COMPOSITION. A NOVEL TYPE OF TWO-DIMENSIONAL SPIN CORRELATION IS
400       FOUND WITH UNUSUALLY LARGE J/SUB 2D/ EQUIVALENT TO 1000 K.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM
500       COMPOUNDS; MAGNETIC STRUCTURE; NEUTRON DIFFRACTION EXAMINATION OF
500       MATERIALS; SPIN WAVES; STRONTIUM COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; NEUTRON SCATTERING; MAGNETIC
510       EXCITATIONS; TWO-DIMENSIONAL SPIN CORRELATION; LA/SUB 2-X/SR/SUB
510       X/CUO/SUB 4/; YBA/SUB 2/CU/SUB 3/O/SUB 6+X/.
550       LASRCUO4/SS CU/SS LA/SS O4/SS SR/SS O/SS; YBA2CU3O/SS BA2/SS CU3/SS
550       BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1650
 AUTH     = ROSSAT-M
 DT       = 06
 KN       = B40891404025
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395254
002       B40891404025
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ANTIFERROMAGNETIC ORDERING AND PHASE DIAGRAM OF YBA/SUB 2/CU/SUB
100       3/O/SUB 6+X/.
200       ROSSAT-MIGNOD, J.; BURLET, P.; JURGENS, M.J. / VETTIER, C.; REGNAULT,
200       L.P.; HENRY, J.Y.; AYACHE, C.; FORRO, L.; NOEL, H.; POTEL, M.;
200       GOUGEON, P.; LEVET, J.C.
220       CENTRE D'ETUDES NUCL. DE GRENOBLE, DEPT. DE RECHERCHE FONDAMENTALE,
220       FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2119-24, REF.21
350       ISSN 0449-1947, CODEN JPQCAK
400       NEUTRON SCATTERING EXPERIMENTS ON SINGLE CRYSTALS HAVE ALLOWED AN
400       ACCURATE DETERMINATION OF THE MAGNETIC PHASE DIAGRAM OF YBA/SUB
400       2/CU/SUB 3/O/SUB 6+X/. WITH INCREASING OXYGEN CONTENT THE
400       ANTIFERROMAGNETIC ORDERING OF YBA/SUB 2/CU/SUB 3/O/SUB 6/ AND T/SUB
400       N/ REMAIN UNCHANGED UP TO X=0.2. FOR X>0.2 BOTH T/SUB N/ AND THE
400       ORDERED MOMENT OF CU/SUP 2+/ IONS IN THE CU(2) SITE DECREASE AND
400       VANISH ABRUPTLY AROUND X APPROXIMATELY=0.40. THE CU/SUP +/ IONS IN
400       THE CU(1) SITE DO NOT ORDER FOR ANY OXYGEN CONTENT. FOR X=0.30 A
400       REENTRANT BEHAVIOUR IS OBSERVED. PRELIMINARY INELASTIC NEUTRON
400       SCATTERING EXPERIMENTS ON A RATHER LARGE SINGLE CRYSTAL (0.2 CM/SUP
400       3/) WITH X APPROXIMATELY=0.3 ARE REPORTED.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC TRANSITIONS; NEUTRON
500       DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; PHASE DIAGRAM; ANTIFERROMAGNETIC
510       ORDERING; INELASTIC NEUTRON SCATTERING; YBA/SUB 2/CU/SUB 3/O/SUB
510       6+X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1651
 AUTH     = ASAYAMA
 DT       = 06
 KN       = B40891404026
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395255
002       B40891404026
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETISM AND SUPERCONDUCTIVITY BY NMR STUDY.
200       ASAYAMA, K.; KITAOKA, Y.; KOHORI, Y.
220       DEPT. OF MATER. PHYS., OSAKA UNIV., JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2125-9, REF.43
350       ISSN 0449-1947, CODEN JPQCAK
400       RESULTS OF NMR MEASUREMENTS ON HIGH T/SUB C/ OXIDE SUPERCONDUCTORS
400       ARE REVIEWED TOGETHER WITH HEAVY ELECTRON SUPERCONDUCTORS. IN HIGH
400       T/SUB C/ COMPOUNDS, SUPERCONDUCTIVITY AND ANTIFERROMAGNETISM COMPETE
400       WITH EACH OTHER, WHILE IN HEAVY ELECTRON SYSTEMS BOTH COEXIST OR
400       COMPETE. THE PROPERTY OF COOPER PAIRS IS DISCUSSED IN HIGH T/SUB C/
400       SUPERCONDUCTORS AND HEAVY ELECTRON SUPERCONDUCTORS.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; COOPER PAIRS; HEAVY
500       FERMION SUPERCONDUCTORS; HIGH-TEMPERATURE SUPERCONDUCTORS; NUCLEAR
500       MAGNETIC RESONANCE.
510       HIGH TEMPERATURE SUPERCONDUCTOR; NMR; HEAVY ELECTRON SUPERCONDUCTORS;
510       ANTIFERROMAGNETISM; COOPER PAIRS.

DOCUMENT=            1652
 AUTH     = MAURER
 DT       = 06
 KN       = B40891404027
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395256
002       B40891404027
010       CONFERENCE PAPER; EXPERIMENTAL.
100       DEPENDENCE OF THE ELECTRONIC STRUCTURE OF YBA/SUB 2/CU/SUB 3/O/SUB 7-
100       DELTA / CERAMICS ON OXYGEN STOICHIOMETRY: A PHOTOEMISSION AND
100       PHOTOABSORPTION STUDY.
200       MAURER, M. / GOURIEUX, T.; KRILL, G.; RAVET, M.F.; TOLENTINO, H.;
200       FONTAINE, A.
220       LAB. CNRS-ST. GOBAIN PONT-A-MOUSSON, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2131-2, REF.7
350       ISSN 0449-1947, CODEN JPQCAK
400       X-RAY PHOTOEMISSION (XPS) AND X-RAY ABSORPTION (XAS) HAVE BEEN
400       PERFORMED ON YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / CERAMICS AS A
400       FUNCTION OF DELTA (0.1< DELTA <0.7). THE RESULTS SHOW THE
400       MODIFICATIONS OF THE CU ELECTRONIC STRUCTURE AROUND THE
400       SUPERCONDUCTING-SEMICONDUCTING TRANSITION. XPS AND XAS EXPERIMENTS
400       GIVE COMPLEMENTARY INFORMATION ALLOWING THE IDENTIFICATION OF CU/SUP
400       +/, CU/SUP 2+/ AND THE SO-CALLED CU/SUP 3+/ CONFIGURATIONS AS A
400       FUNCTION OF DELTA .
500       BAND STRUCTURE OF CRYSTALLINE SEMICONDUCTORS AND INSULATORS; BARIUM
500       COMPOUNDS; CERAMICS; HIGH-TEMPERATURE SUPERCONDUCTORS; STOICHIOMETRY;
500       X-RAY ABSORPTION SPECTRA; X-RAY PHOTOELECTRON SPECTRA; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ELECTRONIC STRUCTURE; CERAMICS;
510       STOICHIOMETRY; X-RAY PHOTOEMISSION; X-RAY ABSORPTION;
510       SUPERCONDUCTING-SEMICONDUCTING TRANSITION; YBA/SUB 2/CU/SUB 3/O/SUB
510       7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1653
 AUTH     = KUMAGAI
 DT       = 06
 KN       = B40891404028
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395257
002       B40891404028
010       CONFERENCE PAPER; EXPERIMENTAL.
100       TEMPERATURE-LINEAR TERM OF HEAT CAPACITY OF LA-BA-CU-O AND LA-SR-CU-O
100       SYSTEMS.
200       KUMAGAI, K.; NAKAMURA, Y.; WATANABE, I.; NAKAMICHI, Y.; NAKAJIMA, H.
220       DEPT. OF PHYS., HOKKAIDO UNIV., SAPPORO, JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2133-4, REF.13
350       ISSN 0449-1947, CODEN JPQCAK
400       HEAT CAPACITY OF LA/SUB 2-X/M/SUB X/CUO/SUB 4/ (M=BA, SR) HAS BEEN
400       INVESTIGATED BETWEEN 1.5 AND 10 K. THE TEMPERATURE-LINEAR TERM, GAMMA
400       T, OF HEAT CAPACITY IS ABSENT IN THE ANTIFERROMAGNETIC ORDERED REGION
400       OF X<0.02. GAMMA INCREASES ABRUPTLY FROM X=0.02 TO X=0.05 WHERE THE
400       SYSTEM IS INSULATING AT LOW TEMPERATURE AND REACHES OF THE ORDER OF
400       4MJ/MOL. K/SUP 2/. THE APPEARANCE OF THE FINITE GAMMA BETWEEN THE AF
400       AND SC STATE CLEARLY CAUSES SPIN OF DEGREES OF FREEDOM. IN THE
400       SUPERCONDUCTING REGION, GAMMA CHANGES STRONGLY WITH X AND SEEMS TO BE
400       VANISHINGLY SMALL AT X=0.10 FOR BA-DOPING AND 0<X<0.20 FOR SR-DOPING.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS; SPECIFIC HEAT
500       OF SOLIDS; STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; HEAT CAPACITY; ANTIFERROMAGNETIC;
510       1.5 TO 10 K; LA/SUB 2-X/BA/SUB X/CUO/SUB 4/; LA/SUB 2-X/SR/SUB
510       X/CUO/SUB 4/.
550       LABACUO4/SS BA/SS CU/SS LA/SS O4/SS O/SS; LASRCUO4/SS CU/SS LA/SS
550       O4/SS SR/SS O/SS.
560       TEMPERATURE 1.5 E+00 TO 1.0 E+01 K.

DOCUMENT=            1654
 AUTH     = BARBARA
 DT       = 06
 KN       = B40891404029
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395258
002       B40891404029
010       CONFERENCE PAPER; EXPERIMENTAL.
100       FIELD TRANSITION FROM 3D TO 2D ANTIFERROMAGNETIC CORRELATIONS IN
100       NON-STOICHIOMETRIC LA/SUB 2/CUO/SUB 4- DELTA /.
200       BARBARA, B.; BEILLE, J.; DUPENDANT, H.
220       LAB. LOUIS NEEL, CNRS, GRENOBLE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2135-6, REF.2
350       ISSN 0449-1947, CODEN JPQCAK
400       SQUID MAGNETIZATION EXPERIMENTS PERFORMED UP TO 70 KOE SHOW THE
400       EXISTENCE OF A METAMAGNETIC-LIKE TRANSITION IN LA/SUB 2/CU/SUB
400       1.02/O/SUB 4- DELTA / FROM WHICH ONE DERIVES THE INTER AND
400       INTRAPLANAR COUPLING CONSTANTS AS WELL AS THE 2D CORRELATION LENGTH.
400       THE RESULTS INDICATE EITHER A STRONG FIELD DEPENDENCE OF THE
400       CORRELATION LENGTH OR A DECREASE OF THE LOCAL MOMENT WITH THE NEEL
400       TEMPERATURE (M VARIES AS SQUARE ROOT T/SUB N/ ABOVE 50 K AND M
400       APPROXIMATELY=CONSTANT BELOW THIS TEMPERATURE).
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC MOMENTS;
500       MAGNETISATION; NEEL TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ANTIFERROMAGNETIC CORRELATIONS;
510       SQUID MAGNETIZATION; LOCAL MOMENT; NEEL TEMPERATURE; LA/SUB 2/CUO/SUB
510       4- DELTA /.
550       LA2CUO/SS LA2/SS CU/SS LA/SS O/SS.

DOCUMENT=            1655
 AUTH     = KOSHIZUK
 DT       = 06
 KN       = B40891404030
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395259
002       B40891404030
010       CONFERENCE PAPER; EXPERIMENTAL.
100       RAMAN STUDY OF LA/SUB 2-X/BA/SUB X/CUO/SUB 4/ (X=0, 0.016) SINGLE
100       CRYSTALS.
200       KOSHIZUKA, N.; UNOKI, H.; OKA, K.; HAYASHI, K.; OKUDA, T.; KIMURA, Y.
220       ELECTROTECH. LAB., IBARAKI, JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2137-8, REF.6
350       ISSN 0449-1947, CODEN JPQCAK
400       RAMAN SCATTERING OF LA/SUB 2-X/BA/SUB X/CUO/SUB 4/ (X=0, 0.016)
400       SINGLE CRYSTALS HAS BEEN MEASURED AT VARIOUS TEMPERATURES IN THE
400       FREQUENCY RANGE BETWEEN 100 AND 5000 CM/SUP -1/. BESIDES AN A/SUB 1G/
400       PHONON LINE AT 430 CM/SUP -1/, THE DISORDER-INDUCED PHONON LINES AND
400       THE PHONON OVERTONE AND COMBINATION LINES ARE OBSERVED. A TWO-MAGNON
400       BAND OBSERVED AT APPROXIMATELY 3000 CM/SUP -1/ IS ALSO DISCUSSED.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       LANTHANUM COMPOUNDS; LATTICE PHONONS; MAGNONS; RAMAN SPECTRA OF
500       INORGANIC SOLIDS; SPIN DYNAMICS.
510       PHONON OVERTONE LINES; ANTIFERROMAGNETIC; SPIN FLUCTUATIONS; PHONON
510       COMBINATION LINES; HIGH TEMPERATURE SUPERCONDUCTOR; SINGLE CRYSTALS;
510       RAMAN SCATTERING; A/SUB 1G/ PHONON LINE; DISORDER-INDUCED PHONON
510       LINES; TWO-MAGNON BAND; 100 TO 5000 CM/SUP -1/; 430 CM/SUP -1/;
510       LA/SUB 2-X/BA/SUB X/CUO/SUB 4/; LASRFEO/SUB 4/.
550       LASRFEO4/SS FE/SS LA/SS O4/SS SR/SS O/SS; LABACUO4/SS BA/SS CU/SS
550       LA/SS O4/SS O/SS.
560       WAVELENGTH 2.0 E-06 TO 1.0 E-04 M; WAVELENGTH 2.3 E-05 M.

DOCUMENT=            1656
 AUTH     = BARBARA
 DT       = 06
 KN       = B40891404031
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395260
002       B40891404031
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ARE THE NEEL TEMPERATURE (T/SUB N/) AND THE SUPERCONDUCTING
100       TRANSITION TEMPERATURE (T/SUB C/) SIMPLY RELATED IN LA/SUB 2/CU/SUB
100       X/O/SUB 4-Y/ UNDER PRESSURE?.
200       BARBARA, B.; BEILLE, J.; DRAPERI, A.; DUPENDANT, H.; FILLION, G.;
200       MAEDER, M.
220       LAB. LOUIS NEEL, CNRS, GRENOBLE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2139-40, REF.10
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS HAVE INVESTIGATED UNDER HIGH PRESSURE A SINTERED LA/SUB
400       2/CU/SUB 1.02/O/SUB 4-Y/ SAMPLE WHICH EXHIBITS BULK SUPERCONDUCTIVITY
400       BELOW T/SUB C/ APPROXIMATELY=37 K AND ANTIFERROMAGNETIC ORDERING
400       BELOW T/SUB N/ APPROXIMATELY=240 K. DT/SUB N//DP HAS BEEN DETERMINED
400       USING D.C. SUSCEPTIBILITY AND RESISTIVITY MEASUREMENTS UNDER
400       PRESSURE. DT/SUB C//DP AND DT/SUB N//DP ARE FOUND TO HAVE OPPOSITE
400       SIGNS. THIS EXPERIMENTAL RESULT IS CONFRONTED TO THE THEORY.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; HIGH-PRESSURE EFFECTS IN
500       SOLIDS; HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS;
500       MAGNETIC SUPERCONDUCTORS; MAGNETIC SUSCEPTIBILITY; NEEL TEMPERATURE;
500       SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ELECTRICAL CONDUCTIVITY; CRITICAL
510       TEMPERATURE; MAGNETIC SUPERCONDUCTOR; MAGNETIC SUSCEPTIBILITY; DC
510       SUSCEPTIBILITY; NEEL TEMPERATURE; HIGH PRESSURE; ANTIFERROMAGNETIC
510       ORDERING; LA/SUB 2/CU/SUB 1.02/O/SUB 4-Y/.
550       LA2CU1.02O/SS CU1.02/SS LA2/SS CU/SS LA/SS O/SS.

DOCUMENT=            1657
 AUTH     = CHITTIPE
 DT       = 06
 KN       = B40891404032
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395261
002       B40891404032
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC STUDIES OF PR/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / AND
100       LA/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
200       CHITTIPEDDI, S. / SONG, Y.; GAINES, J.R.; FARNETH, W.E.; MCCARRON,
200       E.M., III; EPSTEIN, A.J.
220       DEPT. OF PHYS., OHIO STATE UNIV., COLOMBUS, OH, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2141-2, REF.14
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS REPORT MAGNETIC SUSCEPTIBILITY ( CHI /SUP SPIN/(T)), AND
400       MAGNETIC SCATTERING (NEUTRON) STUDIES FOR THE SUPERCONDUCTING COMPLEX
400       LA/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7/ AND THE INSULATING COMPLEX PR/SUB
400       1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /. THE MAGNETIC SUSCEPTIBILITY AND
400       SCATTERING MEASUREMENTS ON THE COMPOUND PR/SUB 1/BA/SUB 2/CU/SUB
400       3/O/SUB 7- DELTA / SHOW NO SIGN OF MAGNETIC ORDERING. FOR THE LA/SUB
400       1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / SAMPLES THE AUTHORS OBSERVE ONLY
400       A SMALL CHANGE IN THE PAULI SUSCEPTIBILITY AND A DECREASE IN THE
400       CURIE-CONSTANT AS T/SUB C/ OF THE SAMPLES IS INCREASED.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM
500       COMPOUNDS; MAGNETIC STRUCTURE; MAGNETIC SUSCEPTIBILITY; NEUTRON
500       DIFFRACTION EXAMINATION OF MATERIALS; PARAMAGNETIC PROPERTIES OF
500       SUBSTANCES; PRASEODYMIUM COMPOUNDS.
510       MAGNETIC STRUCTURE; NEUTRON SCATTERING; SPIN SUSCEPTIBILITY; CRITICAL
510       TEMPERATURE; TEMPERATURE DEPENDENCE; HIGH TEMPERATURE SUPERCONDUCTOR;
510       DEGREE OF LOCALISATION; PARAMAGNETISM; MAGNETIC SUSCEPTIBILITY;
510       MAGNETIC ORDERING; PAULI SUSCEPTIBILITY; CURIE-CONSTANT; PR/SUB
510       1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /; LA/SUB 1/BA/SUB 2/CU/SUB
510       3/O/SUB 7- DELTA /.
550       PR1BA2CU3O/SS BA2/SS CU3/SS PR1/SS BA/SS CU/SS PR/SS O/SS;
550       LA1BA2CU3O/SS BA2/SS CU3/SS LA1/SS BA/SS CU/SS LA/SS O/SS.

DOCUMENT=            1658
 AUTH     = ZUO
 DT       = 06
 KN       = B40891404033
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395262
002       B40891404033
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC FIELD DEPENDENCE OF HIGH T/SUB C/ SEMICONDUCTING CERAMICS.
200       ZUO, F.; CHEN, X.D.; GAINES, J.R. / FARNETH, W.E.; MCLEAN, R.S.;
200       EPSTEIN, A.J.
220       DEPT. OF PHYS., OHIO STATE UNIV., COLOMBUS, OH, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2143-4, REF.11
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS REPORT THE MAGNETIZATION M AS A FUNCTION OF MAGNETIC
400       FIELD H AND TEMPERATURE T FOR BOTH SEMICONDUCTING LA/SUB 2-X/SR/SUB
400       X/CUO/SUB 4-Y/ AND Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 6+X/. AN ANOMALOUS
400       MAGNETIC FIELD DEPENDENCE HAS BEEN OBSERVED FOR EACH OF THESE
400       SAMPLES. BELOW T/SUB N/, THE APPLICATION OF HIGH FIELD AT SMALL
400       X(<0.02) FOR LA/SUB 2-X/SR/SUB X/CUO/SUB 4-Y/ AND FOR Y/SUB 1/BA/SUB
400       2/CU/SUB 3/O/SUB 6+X/ AT X=0, THERE IS AN ANOMALOUS BEHAVIOR FOR
400       M(H), SUGGESTIVE OF A PRESENCE OF A FERROMAGNETIC COMPONENT. FOR
400       Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 6+X/ SAMPLES OF X=0.25 AND 0.34,
400       THERE IS A SUBLINEAR BEHAVIOR OF M ON H. POSSIBLE MODELS ARE
400       DISCUSSED FOR THESE NOVEL PHENOMENA.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       LANTHANUM COMPOUNDS; MAGNETIC TRANSITIONS; MAGNETISATION; NEEL
500       TEMPERATURE; PARAMAGNETIC PROPERTIES OF SUBSTANCES; SEMICONDUCTOR
500       MATERIALS; STRONTIUM COMPOUNDS; YTTRIUM COMPOUNDS.
510       TEMPERATURE DEPENDENCE; HIGH TEMPERATURE SUPERCONDUCTOR;
510       SEMICONDUCTOR; NEEL TEMPERATURE; ANTIFERROMAGNETISM; MAGNETIZATION;
510       MAGNETIC FIELD DEPENDENCE; FERROMAGNETIC COMPONENT; LA/SUB 2-X/SR/SUB
510       X/CUO/SUB 4-Y/; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 6+X/.
550       LASRCUO/SS CU/SS LA/SS SR/SS O/SS; Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS
550       CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1659
 AUTH     = KUMAGAI
 DT       = 06
 KN       = B40891404034
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395263
002       B40891404034
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EFFECTS OF OXYGEN AND MAGNETIC IMPURITIES ON NUCLEAR RELAXATION
100       ANOMALIES IN LA-M-CU-O (M=BA, SR) SYSTEMS.
200       KUMAGAI, K.; WATANABE, I.; NAKAMURA, Y.; NAKAJIMA, H.
220       DEPT. OF PHYS., HOKKAIDO UNIV., SAPPORO, JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2145-6, REF.8
350       ISSN 0449-1947, CODEN JPQCAK
400       NUCLEAR QUADRUPOLE RESONANCE (NQR) OF /SUP 139/LA IN LA/SUB 2-X/M/SUB
400       X/CUO/SUB 4/ (M=BA,SR) HAVE REVEALED UNEXPECTED ENHANCEMENT OF
400       NUCLEAR RELAXATION RATE, 1/T/SUB 1/ AT T/SUB C/* APPROXIMATELY 10 K,
400       SUGGESTING THE OCCURRENCE OF MAGNETIC INSTABILITY IN THE LOW
400       TEMPERATURE REGION. IN THE UNDOPED LA/SUB 2/CUO/SUB 4/, OXYGEN
400       DEFICIENCIES AFFECT STRONGLY THE NUCLEAR RELAXATION RATE. MAGNETIC
400       IMPURITIES (FE, ETC.) SUPPRESS THE ENHANCEMENT OF 1/T/SUB 1/, BUT
400       NON-MAGNETIC ZN DOES NOT. IN THE SUPERCONDUCTING REGION, FLUCTUATIONS
400       OF CU MOMENTS AT LOW TEMPERATURES SEEM TO REMAIN EXTREMELY FAST AS
400       SAME AS THAT AT HIGH TEMPERATURES.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; IMPURITIES;
500       LANTHANUM COMPOUNDS; MAGNETIC MOMENTS; MAGNETIC TRANSITIONS; NUCLEAR
500       QUADRUPOLE RESONANCE; NUCLEAR SPIN-LATTICE RELAXATION; SPIN DYNAMICS;
500       STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SPIN FLUCTUATIONS; O EFFECTS;
510       NUCLEAR QUADRUPOLE RESONANCE; O DEFICIENCIES; CU MOMENT;
510       FLUCTUATIONS; NUCLEAR SPIN-LATTICE RELAXATION; LOCAL CU MOMENTS;
510       MAGNETIC TRANSITION; MAGNETIC IMPURITIES; /SUP 139/LA; NUCLEAR
510       RELAXATION RATE; MAGNETIC INSTABILITY; LOW TEMPERATURE REGION;
510       LA-BA-CU-FE-O; LA-BA-CU-NI-O; LA-BA-CU-ZN-O.
550       LABACUFEO/SS BA/SS CU/SS FE/SS LA/SS O/SS; LABACUNIO/SS BA/SS CU/SS
550       LA/SS NI/SS O/SS; CU/SS LA/SS SR/SS O/SS; LABACUZNO/SS BA/SS CU/SS
550       LA/SS ZN/SS O/SS.

DOCUMENT=            1660
 AUTH     = LUTGEMEI
 DT       = 06
 KN       = B40891404035
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395264
002       B40891404035
010       CONFERENCE PAPER; EXPERIMENTAL.
100       OBSERVATION OF ANTIFERROMAGNETIC ORDER IN YBA/SUB 2/CU/SUB 3/O/SUB
100       6.15/ BY CU NQR.
200       LUTGEMEIER, H.; RUPP, B.
220       INST. FUR FESTKORPERFORSCHUNG, KFA JULICH, WEST GERMANY
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2147-8, REF.7
350       ISSN 0449-1947, CODEN JPQCAK
400       THE NQR SPECTRA OF SEMICONDUCTING YBA/SUB 2/CU/SUB 3/O/SUB Y/
400       (6.0<Y<6.25) SHOW TWO DIFFERENT ANTIFERROMAGNETIC STRUCTURES WITH A
400       DIFFERENT STACKING SEQUENCE. IN BOTH STRUCTURES THE MAGNETIC MOMENT
400       IS LOCATED AT THE CU-2 SITES PERPENDICULAR TO THE C-AXIS. THE
400       STRUCTURE WITH ANTIFERROMAGNETIC COUPLING BETWEEN ALL CU-2 PLANES
400       REVEALS STRONG TEMPERATURE DEPENDENT MAGNETIC FLUCTUATIONS WITH
400       CORRELATION TIMES OF ABOUT 10/SUP -6/ S AT 15 K. NO FLUCTUATIONS ARE
400       FOUND IN THE SECOND STRUCTURE WHICH REVEALS A CONSTANT INTERNAL FIELD
400       OF ABOUT 0.2 T.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       MAGNETIC MOMENTS; MAGNETIC STRUCTURE; NUCLEAR QUADRUPOLE RESONANCE;
500       SEMICONDUCTOR MATERIALS; SPIN DYNAMICS; SPIN-SPIN RELAXATION; YTTRIUM
500       COMPOUNDS.
510       SEMICONDUCTOR; SPIN-SPIN RELAXATION; MAGNETIC STRUCTURE; HIGH
510       TEMPERATURE SUPERCONDUCTOR; NUCLEAR QUADRUPOLE RESONANCE;
510       ANTIFERROMAGNETIC ORDER; CU NQR; STACKING SEQUENCE; MAGNETIC MOMENT;
510       MAGNETIC FLUCTUATIONS; CORRELATION TIMES; INTERNAL FIELD; YBA/SUB
510       2/CU/SUB 3/O/SUB 6.15/.
550       YBA2CU3O6.15/SS O6.15/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1661
 AUTH     = KITAZAWA
 DT       = 06
 KN       = B40891404036
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395265
002       B40891404036
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC ORDERING IN THE SUPERCONDUCTING STATE OF (LA/SUB 1-X/SR/SUB
100       X/)/SUB 2/CUO/SUB 4/ DETECTED BY MU SR.
200       KITAZAWA, H.; KATSUMATA, K. / TORIKAI, E.; NAGAMINE, K.
220       INST. OF PHYS. ? CHEM. RES., SAITAMA, JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2149-50, REF.11
350       ISSN 0449-1947, CODEN JPQCAK
400       THE POSITIVE MUON SPIN RELAXATION METHOD HAS BEEN APPLIED TO
400       INVESTIGATE SINGLE CRYSTALS OF THE OXIDE SUPERCONDUCTOR (LA/SUB
400       1-X/SR/SUB X/)/SUB 2/CUO/SUB 4/. IT IS CONCLUDED THAT A MAGNETIC
400       ORDERING COEXISTS WITH THE SUPERCONDUCTIVITY FOR THE X=0.04 SAMPLE
400       FROM THE TEMPERATURE DEPENDENCES OF THE INITIAL POLARIZATION AND THE
400       RELAXATION RATE.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC
500       STRUCTURE; MAGNETIC SUPERCONDUCTORS; MUON PROBES; STRONTIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; TEMPERATURE DEPENDENCE; MAGNETIC
510       TRANSITION; POSITIVE MUON SPIN RELAXATION; SINGLE CRYSTALS; MAGNETIC
510       ORDERING; INITIAL POLARIZATION; (LA/SUB 1-X/SR/SUB X/)/SUB 2/CUO/SUB
510       4/.
550       LASRCUO4/SS CU/SS LA/SS O4/SS SR/SS O/SS.

DOCUMENT=            1662
 AUTH     = ROGER
 DT       = 06
 KN       = B40891404037
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395266
002       B40891404037
010       CONFERENCE PAPER; THEORETICAL.
100       FOUR SPIN EXCHANGE IN HIGH T/SUB C/ SUPERCONDUCTORS.
200       ROGER, M.; DELRIEU, J.M.
220       DPH. G. SPSRM-CEA CENS, GIF SUR YVETTE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2151-2, REF.11
350       ISSN 0449-1947, CODEN JPQCAK
400       TAKING INTO ACCOUNT THE SMALL ENERGY DIFFERENCE OF CONDUCTING HOLES
400       BETWEEN CU AND O SITES AND LARGE ON-SITE ENERGY FOR DOUBLE OCCUPANCY
400       WHICH PREVENTS HOLES FROM CROSSING ON THE SAME SITE, THE AUTHORS
400       PROVE THAT CYCLIC FOUR HOLE EXCHANGE VIA INTERMEDIATE O SITES IS
400       DOMINANT IN THE 2D CUO/SUB 2/ SQUARE LATTICE, LIKE IN HARD CORE SOLID
400       /SUP 3/HE. SOME EXPERIMENTAL DISCREPANCIES ARE RESOLVED BY THIS
400       MODEL.
500       EXCHANGE INTERACTIONS (ELECTRON); HIGH-TEMPERATURE SUPERCONDUCTORS.
510       FOUR SPIN EXCHANGE; HUBBARD HAMILTONIAN; HIGH TEMPERATURE
510       SUPERCONDUCTORS; SPIN EXCHANGE MODEL; CONDUCTING HOLES; DOUBLE
510       OCCUPANCY; CYCLIC FOUR HOLE EXCHANGE; INTERMEDIATE O SITES; 2D
510       CUO/SUB 2/ SQUARE LATTICE.

DOCUMENT=            1663
 AUTH     = LYNN
 DT       = 06
 KN       = B40891404038
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395267
002       B40891404038
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ANTIFERROMAGNETIC ORDER OF THE CU IN RBA/SUB 2/CU/SUB 3/O/SUB 6+X/.
200       LYNN, J.W.; LI, W.-H. / MOOK, H.A.; SALES, B.C.; FISK, Z.
220       CENTER FOR SUPERCOND. RES., MARYLAND UNIV., COLLEGE PARK, MD, USA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2153-4, REF.8
350       ISSN 0449-1947, CODEN JPQCAK
400       NEUTRON DIFFRACTION MEASUREMENTS HAVE BEEN TAKEN ON SINGLE CRYSTALS
400       OF NDBA/SUB 2/CU/SUB 3/O/SUB 6+X/ TO EXPLORE THE NATURE OF THE
400       MAGNETIC ORDER AS A FUNCTION OF OXYGEN CONCENTRATION X. THE CU-O
400       PLANES ORDER ANTIFERROMAGNETICALLY AT T/SUB N1/, WITH T/SUB N1/(X
400       APPROXIMATELY=0) APPROXIMATELY 450 K. AT LOWER TEMPERATURES THE
400       OXYGEN-DEFICIENT CU PLANES ALSO ORDER MAGNETICALLY, WITH SUBSTANTIAL
400       LOW TEMPERATURE MOMENT ( APPROXIMATELY 1/2 MU /SUB B/) AND A SIMPLE
400       ANTIFERROMAGNETIC SEQUENCING ALONG THE C-AXIS. BOTH ORDERING
400       TEMPERATURES DECREASE WITH INCREASING X, WITH T/SUB N2/ BEING MUCH
400       MORE SENSITIVE TO X THAN T/SUB N1/.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       MAGNETIC STRUCTURE; NEEL TEMPERATURE; NEODYMIUM COMPOUNDS; NEUTRON
500       DIFFRACTION EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MAGNETIC STRUCTURE;
510       NONSUPERCONDUCTING; NEUTRON DIFFRACTION; ANTIFERROMAGNETIC ORDER; O
510       CONCENTRATION DEPENDENCE; NEEL TEMPERATURE; MAGNETIC MOMENT; SINGLE
510       CRYSTALS; CU-O PLANES; CU PLANES; NDBA/SUB 2/CU/SUB 3/O/SUB 6+X/.
550       NDBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS ND/SS O/SS.

DOCUMENT=            1664
 AUTH     = BRUCKEL
 DT       = 06
 KN       = B40891404039
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395268
002       B40891404039
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC FLUCTUATIONS IN THE COMPOUNDS YBA/SUB 2/CU/SUB 3/O/SUB 6+X/
100       (0<X<1).
200       BRUCKEL, TH.; NEUMANN, K.U.; CAPELLMANN, H.; SCHARPF, O. /
200       KEMMLER-SACK, S.; KIEMEL, R.; SCHAFER, W.
220       INST. LAUE-LANGEVIN, GRENOBLE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2155-6, REF.9
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS PERFORMED NEUTRON SCATTERING EXPERIMENTS USING
400       POLARIZATION ANALYSIS ON THE HIGH TEMPERATURE SUPERCONDUCTOR YBA/SUB
400       2/CU/SUB 3/O/SUB 6.9/ AND THE RELATED SEMICONDUCTING COMPOUNDS
400       YBA/SUB 2/CU/SUB 3/O/SUB 6+X/ (X=0.11, 0.37). WHILE THEY FOUND
400       PARAMAGNETIC FLUCTUATIONS IN THE NON-SUPERCONDUCTING SAMPLES, THEY
400       ESTABLISHED SEVERE UPPER BOUNDS FOR THE TOTAL MAGNETIC INTENSITY FOR
400       THE SUPERCONDUCTOR. THE CONCLUDE THAT MAGNETIC COUPLINGS AS A SOURCE
400       FOR SUPERCONDUCTIVITY IN YBA/SUB 2/CU/SUB 3/O/SUB 7/ ARE HIGHLY
400       UNLIKELY.
500       BARIUM COMPOUNDS; FLUCTUATIONS IN SUPERCONDUCTORS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; NEUTRON DIFFRACTION EXAMINATION OF MATERIALS;
500       SEMICONDUCTOR MATERIALS; SPIN DYNAMICS; YTTRIUM COMPOUNDS.
510       SEMICONDUCTOR; MAGNETIC FLUCTUATIONS; NEUTRON SCATTERING;
510       POLARIZATION ANALYSIS; HIGH TEMPERATURE SUPERCONDUCTOR; PARAMAGNETIC
510       FLUCTUATIONS; TOTAL MAGNETIC INTENSITY; MAGNETIC COUPLINGS; YBA/SUB
510       2/CU/SUB 3/O/SUB 6+X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1665
 AUTH     = KITAOKA
 DT       = 06
 KN       = B40891404040
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395269
002       B40891404040
010       CONFERENCE PAPER; EXPERIMENTAL.
100       PHASE DIAGRAM OF MAGNETIC ORDER AND SUPERCONDUCTIVITY IN HIGH-T/SUB
100       C/ YBA/SUB 2/CU/SUB 3/O/SUB X/.
200       KITAOKA, Y.; ISHIDA, K.; ASAYAMA, K. / TAKAGI, H.; IWABUCHI, H.;
200       UCHIDA, S.
220       DEPT. OF MATER. PHYS., OSAKA UNIV., JAPAN
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2157-8, REF.13
350       ISSN 0449-1947, CODEN JPQCAK
400       NUCLEAR QUADRUPOLE RESONANCE (NQR) EXPERIMENTS ON TETRAGONAL YBA/SUB
400       2/CU/SUB 3/O/SUB X/ WITH X=6.3 AND 6.4 REVEAL A SUCCESSIVE MAGNETIC
400       TRANSITION ASSOCIATED WITH THE CHAIN SITE AT 20 K WELL BELOW T/SUB N/
400       APPROXIMATELY 400 K, WHILE SUCH A TRANSITION HAS NOT BEEN OBSERVED
400       DOWN TO 1.3 K FOR X=6.1. THE SECOND TRANSITION APPEARS IN THE
400       VICINITY OF THE SUPERCONDUCTIVITY.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC TRANSITIONS; NUCLEAR
500       QUADRUPOLE RESONANCE; NUCLEAR SPIN-LATTICE RELAXATION; PHASE
500       DIAGRAMS; SEMICONDUCTOR MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SEMICONDUCTOR; ANTIFERROMAGNETIC
510       ORDER; MAGNETIC PHASE DIAGRAM; NUCLEAR SPIN-LATTICE RELAXATION;
510       MAGNETIC TRANSITION; CHAIN SITE; TETRAGONAL YBA/SUB 2/CU/SUB 3/O/SUB
510       X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1666
 AUTH     = MCALISTE
 DT       = 06
 KN       = B40891404041
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395270
002       B40891404041
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETISM IN SOME Y-BA-CU OXIDES.
200       MCALISTER, S.P.; DAVIDSON, I.J.; MCKINNON, W.R.; MORTON, J.R.;
200       PLEIZIER, G.; POST, M.L.; SELWYN, L.S.
220       DIV. OF CHEM., NRC, OTTAWA, ONT., CANADA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2159-60, REF.8
350       ISSN 0449-1947, CODEN JPQCAK
400       MAGNETIC MEASUREMENTS ARE REPORTED ON INSULATING Y-BA-CU OXIDES WITH
400       METAL RATIOS 2:1:1 (GREEN PHASE) AND 1:3:2 (BROWN PHASE). THE GREEN
400       PHASE IS ANTIFERROMAGNETIC BELOW 31+OR-1 K WITH A MOMENT OF
400       1.14+OR-0.10 MU /SUB B//CU. THE BROWN PHASE IS PARAMAGNETIC WITH A
400       MOMENT OF 1.5+OR-0.2 MU /SUB B//CU (OXYGEN-RICH SAMPLE) OR
400       1.75+OR-0.2 MU /SUB B//CU (OXYGEN-DEPLETED SAMPLE).
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       MAGNETIC MOMENTS; MAGNETISATION; PARAMAGNETIC PROPERTIES OF
500       SUBSTANCES; YTTRIUM COMPOUNDS.
510       MAGNETISATION; IMPURITY PHASES; HIGH TEMPERATURE SUPERCONDUCTOR;
510       INSULATING PHASES; MAGNETIC MOMENTS; GREEN PHASE; ANTIFERROMAGNETIC;
510       BROWN PHASE; PARAMAGNETIC; Y/SUB 2/BACUO/SUB X/; YBA/SUB 3/CU/SUB
510       2/O/SUB X/.
550       Y2BACUO/SS BA/SS CU/SS Y2/SS O/SS Y/SS; YBA3CU2O/SS BA3/SS CU2/SS
550       BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1667
 AUTH     = CHAUDOUE
 DT       = 06
 KN       = B40891404042
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395271
002       B40891404042
010       CONFERENCE PAPER; EXPERIMENTAL.
100       STUDY OF THE ELECTRIC FIELD GRADIENT IN EUBA/SUB 2/CU/SUB 3/O/SUB 7-
100       DELTA / ( DELTA APPROXIMATELY=0 AND DELTA APPROXIMATELY=1) BY /SUP
100       151/EU MOSSBAUER SPECTROSCOPY.
200       CHAUDOUET, P.; SENATEUR, J.P.; WEISS, F. / DALMAS DE REOTIER, P.;
200       VULLIET, P.; YAOUANC, A.
220       INPG/ENSPG, MARTIN D'HERES, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2161-2, REF.8
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS HAVE MEASURED THE QUADRUPOLE INTERACTION PARAMETER AND
400       THE ASYMMETRY COEFFICIENT AT THE /SUP 151/EU MOSSBAUER NUCLEUS FOR
400       EUBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /, DELTA APPROXIMATELY=0 AND DELTA
400       APPROXIMATELY=1. THE MEASUREMENTS HAVE BEEN EXTENDED UP TO 420 K AND
400       600 K RESPECTIVELY. FROM THE TEMPERATURE DEPENDENCE OF THE ELECTRIC
400       FIELD GRADIENT PARAMETER V/SUB ZZ//SUP EU/ AND THE ISOMER SHIFT THE
400       AUTHORS DEDUCE THAT THE CONTRIBUTION OF THE EXCITED ELECTRONIC STATE
400       OF EU/SUP 3+/ TO THE MEASURED PARAMETERS IS STRONGER IN THE
400       SUPERCONDUCTING THAN IN THE SEMICONDUCTING OXIDE.
500       BARIUM COMPOUNDS; CRYSTAL HYPERFINE FIELD INTERACTIONS; EUROPIUM
500       COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; ISOMER SHIFT; MOSSBAUER
500       EFFECT; SEMICONDUCTOR MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SEMICONDUCTOR; CRYSTAL HYPERFINE
510       FIELD INTERACTIONS; ELECTRIC FIELD GRADIENT; /SUP 151/EU MOSSBAUER
510       SPECTROSCOPY; QUADRUPOLE INTERACTION PARAMETER; ASYMMETRY
510       COEFFICIENT; TEMPERATURE DEPENDENCE; ISOMER SHIFT; EXCITED ELECTRONIC
510       STATE; 4.2 TO 600 K; EUBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       EUBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS EU/SS O/SS.
560       TEMPERATURE 4.2 E+00 TO 6.0 E+02 K.

DOCUMENT=            1668
 AUTH     = SENOUSSI
 DT       = 06
 KN       = B40891404043
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395272
002       B40891404043
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC HYSTERESIS OF SUPERCONDUCTING GDBA/SUB 2/CU/SUB 3/O/SUB 7/
100       DOWN TO 1.8 K.
200       SENOUSSI, S. / SASTRY, P.V.S.S.; YAKHMI, J.V.; CAMPBELL, I.A.
220       LAB. DE PHYSIQUE DES SOLIDES, UNIV. DE PARIS-SUD, ORSAY, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2163-4, REF.5
350       ISSN 0449-1947, CODEN JPQCAK
400       THE AUTHORS REPORT MAGNETIZATION MEASUREMENTS ON SINGLE-PHASE
400       SINTERED GDBA/SUB 2/CU/SUB 3/O/SUB 7/ BETWEEN 1.5 AND 100 K AND IN
400       FIELDS UP TO 35 KG. THE SHAPE OF THE LOW-FIELD DIAMAGNETIC LOOP AT
400       4.2 K IS TYPICAL OF THE HIGH-T/SUB C/ Y-BA-CU-O SYSTEMS AND IS
400       IMPOSED BY JOSEPHSON JUNCTIONS. THE HIGH-FIELD REGIME IS INFLUENCED
400       BY THE PARAMAGNETIC RESPONSE OF GD-IONS. SATURATION EFFECTS ARE
400       OBSERVED NEAR THE NEEL TEMPERATURE T/SUB N/ APPROXIMATELY 2.5 K. THE
400       INTRA-GRAIN MAGNETIC CRITICAL CURRENT J/SUB C/ IS ROUGHLY THE SAME (
400       APPROXIMATELY 10/SUP 6/ A/CM/SUP 2/ AT 4.2 K) AS IN Y-BA-CU-O SYSTEMS
400       EITHER GRANULAR OF SINGLE CRYSTALS.
500       BARIUM COMPOUNDS; CRITICAL CURRENTS; DIAMAGNETIC PROPERTIES OF
500       SUBSTANCES; GADOLINIUM COMPOUNDS; GRANULAR MATERIALS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT; MAGNETIC
500       HYSTERESIS; NEEL TEMPERATURE; PARAMAGNETIC PROPERTIES OF SUBSTANCES.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MAGNETIC HYSTERESIS; SATURATION
510       EFFECTS; GRANULAR SUPERCONDUCTOR; MAGNETIZATION; SINGLE-PHASE;
510       LOW-FIELD DIAMAGNETIC LOOP; JOSEPHSON JUNCTIONS; HIGH-FIELD REGIME;
510       PARAMAGNETIC RESPONSE; NEEL TEMPERATURE; INTRA-GRAIN MAGNETIC
510       CRITICAL CURRENT; 1.5 TO 100 K; 0 TO 35 KG; GDBA/SUB 2/CU/SUB 3/O/SUB
510       7/.
550       GDBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS GD/SS O7/SS O/SS.
560       TEMPERATURE 1.5 E+00 TO 1.0 E+02 K; MAGNETIC FLUX DENSITY 0.0 E+00 TO
560       3.5 E+00 T.

DOCUMENT=            1669
 AUTH     = CHOUTEAU
 DT       = 06
 KN       = B40891404044
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395273
002       B40891404044
010       CONFERENCE PAPER; EXPERIMENTAL.
100       HIGH TEMPERATURE AND HIGH FIELDS MAGNETIC PROPERTIES OF A HOBA/SUB
100       2/CU/SUB 3/O/SUB 7/ SINGLE CRYSTAL.
200       CHOUTEAU, G. / POTEL, M.; GOUGEON, P.; NOEL, H.; LEVET, J.C.;
200       GUILLOT, M.; THOLENCE, J.L.
220       SERVICE NAT. DES CHAMPS INTENSES, CNRS, GRENOBLE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2165-6, REF.7
350       ISSN 0449-1947, CODEN JPQCAK
400       IN HOBA/SUB 2/CU/SUB 3/O/SUB 7-X/ THE MAGNETIC MOMENT PER HO IS FAR
400       FROM THE MAXIMUM MOMENT OF THE HO/SUP 3+/ ION. A MAGNETIC ANOMALY
400       DEPENDING ON THE COOLING RATE IS OBSERVED AROUND 60 K. IT IS
400       ATTRIBUTED TO A STRUCTURAL TRANSITION. THE MAGNETISATION IS MEASURED
400       BETWEEN 4 AND 300 K. THE TEMPERATURE DEPENDENCE OF THE CRITICAL FIELD
400       IS DEDUCED FROM THE HYSTERESIS.
500       BARIUM COMPOUNDS; COOLING; CRYSTAL FIELD INTERACTIONS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; HOLMIUM COMPOUNDS; MAGNETIC
500       HYSTERESIS; MAGNETIC MOMENTS; PARAMAGNETIC PROPERTIES OF SUBSTANCES;
500       SOLID-STATE PHASE TRANSFORMATIONS; SUPERCONDUCTING CRITICAL FIELD.
510       CRYSTAL FIELD EFFECTS; CRITICAL FIELD; HIGH TEMPERATURE
510       SUPERCONDUCTOR; STRUCTURAL PHASE TRANSITION; HIGH FIELDS; MAGNETIC
510       HYSTERESIS; PARAMAGNETISM; HIGH TEMPERATURE; TEMPERATURE DEPENDENCE;
510       SINGLE CRYSTAL; MAGNETIC MOMENT; HO/SUP 3+/ ION; MAGNETIC ANOMALY;
510       COOLING RATE; 4 TO 300 K; 60 K; 0 TO 18 T; HOBA/SUB 2/CU/SUB 3/O/SUB
510       7/.
550       HOBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS HO/SS O7/SS O/SS.
560       TEMPERATURE 4.0 E+00 TO 3.0 E+02 K; TEMPERATURE 6.0 E+01 K; MAGNETIC
560       FLUX DENSITY 0.0 E+00 TO 1.8 E+01 T.

DOCUMENT=            1670
 AUTH     = DE
 DT       = 06
 KN       = B40891404045
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395274
002       B40891404045
010       CONFERENCE PAPER; EXPERIMENTAL.
100       UPPER CRITICAL FIELD IN Y/SUB 0.8/LN/SUB 0.2/BA/SUB 2/CU/SUB 3/O/SUB
100       7-Z/, LN=DY, ER AND TM SUPERCONDUCTORS.
200       DE, U.; KALAVATHI, S.; RADHAKRISHNAN, T.S.; SUBBA RAO, G.V.
220       DIV. OF MATER. SCI., INDIRA GANDHI CENTRE FOR ATOMIC RES., KALPAKKAM,
220       INDIA
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2167-8, REF.9
350       ISSN 0449-1947, CODEN JPQCAK
400       RESISTIVELY MEASURED UPPER CRITICAL FIELD, H/SUB C2/(T), FOR FIELDS
400       UP TO 120 KOE ARE REPORTED FOR THE NEW SUPERCONDUCTORS Y/SUB
400       0.8/LN/SUB 0.2/BA/SUB 2/CU/SUB 3/O/SUB 7-X/, LN=DY, ER AND TM. A
400       CONCAVE CURVATURE IS OBSERVED FOR ALL THE H/SUB C2/(T) VS. T GRAPHS
400       AT LOWER FIELDS. ORIGIN OF THE CURVATURE FROM THE ANISOTROPY OF H/SUB
400       C2/ AND ALTERNATIVELY FROM CRITICAL FLUCTUATIONS ARE DISCUSSED.
500       BARIUM COMPOUNDS; DYSPROSIUM COMPOUNDS; ERBIUM COMPOUNDS;
500       FLUCTUATIONS IN SUPERCONDUCTORS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SUPERCONDUCTING CRITICAL FIELD; THULIUM COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; UPPER CRITICAL FIELD ANISOTROPY;
510       RESISTANCE MEASUREMENTS; TEMPERATURE DEPENDENCE; CRITICAL
510       FLUCTUATIONS; 75 TO 100 K; Y-DY-BA-CU-O; Y-ER-BA-CU-O; Y-TM-BA-CU-O.
550       YDYBACUO/SS BA/SS CU/SS DY/SS O/SS Y/SS; YERBACUO/SS BA/SS CU/SS
550       ER/SS O/SS Y/SS; YTMBACUO/SS BA/SS CU/SS TM/SS O/SS Y/SS.
560       TEMPERATURE 7.5 E+01 TO 1.0 E+02 K.

DOCUMENT=            1671
 AUTH     = CHATTOPA
 DT       = 06
 KN       = B40891404046
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395275
002       B40891404046
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EVIDENCE FOR THREE DIMENSIONAL MAGNETIC ORDERING IN ERBA/SUB 2/CU/SUB
100       3/O/SUB 7/.
200       CHATTOPADHYAY, T. / BROWN, P.J.; BONNENBERG, D.; EWERT, S.; MALLETTA,
200       H.
220       CENTRE D'ETUDES NUCL., DRF/SPH-MDN, GRENOBLE, FRANCE
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2169-70, REF.9
350       ISSN 0449-1947, CODEN JPQCAK
400       NEUTRON DIFFRACTION EXPERIMENTS ON POLYCRYSTALLINE SAMPLES OF
400       ERBA/SUB 2/CU/SUB 3/O/SUB 7/ SHOW THAT ER MOMENTS ARE ORDERED
400       THREE-DIMENSIONALLY AT T=140 MK. TWO INDEPENDENT PROPAGATION VECTORS
400       K/SUB 1/=(1/2 0 0) AND K/SUB 2/=(1/2 0 1/2) ARE REQUIRED TO INDEX THE
400       MAGNETIC REFLECTIONS. ER MOMENTS ARE INCLINED AT AN ANGLE TO 32 DEG
400       TO THE C-AXIS AND THE ORDERED MAGNETIC MOMENT AT 140 MK IS 4.9(2) MU
400       /SUB B/.
500       BARIUM COMPOUNDS; ERBIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MAGNETIC MOMENTS; MAGNETIC STRUCTURE; MAGNETIC SUPERCONDUCTORS;
500       NEUTRON DIFFRACTION EXAMINATION OF MATERIALS.
510       NEUTRON DIFFRACTION; ANTIFERROMAGNETIC ORDER; FERROMAGNETIC ORDER;
510       MAGNETIC MOMENT DIRECTIONS; HIGH TEMPERATURE SUPERCONDUCTOR; THREE
510       DIMENSIONAL MAGNETIC ORDERING; POLYCRYSTALLINE; MAGNETIC REFLECTIONS;
510       140 MK; ERBA/SUB 2/CU/SUB 3/O/SUB 7/.
550       ERBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS ER/SS O7/SS O/SS.
560       TEMPERATURE 1.4 E-01 K.

DOCUMENT=            1672
 AUTH     = CHATTOPA
 DT       = 06
 KN       = B40891404047
 LG       = ENGL
 SN       = ISSN 0449-1947
 YR       = 88
000       3395276
002       B40891404047
010       CONFERENCE PAPER; EXPERIMENTAL.
100       NEUTRON DIFFRACTION STUDY OF THE MAGNETIC ORDERING IN GDBA/SUB
100       2/CU/SUB 3/O/SUB 7- DELTA /.
200       CHATTOPADHYAY, T.; MALETTA, H.; WIRGES, W.; FISCHER, K. / BROWN, P.J.
220       INST. FUR FESTKORPERFORSCHUNG DER KFA JULICH, WEST GERMANY
300       INTERNATIONAL CONFERENCE ON MAGNETISM ICM 88.
305       PARIS, FRANCE.  25-29 JULY 1988.  IUPAP. ACAD. SCI.. COMM. EUR.
305       COMMUNITIES. ET AL.
310       J. PHYS. COLLOQ. (FRANCE)
330       DEC. 1988. VOL.49, NO.C-8, PT.3, P.C8-2171-2, REF.10
350       ISSN 0449-1947, CODEN JPQCAK
400       NEUTRON DIFFRACTION INVESTIGATIONS ON A SINGLE CRYSTAL OF GDBA/SUB
400       2/CU/SUB 3/O/SUB 7- DELTA / ( DELTA =0.5) SHOW THAT THE GD MOMENTS
400       ORDER AT T/SUB N/=2.2 K WITH A WAVE VECTOR (1/2, 1/2, 0). THE GD
400       MOMENTS ARE ANTIFERROMAGNETICALLY COUPLED TO THEIR NEAREST NEIGHBOURS
400       IN THE A-B PLANE BUT ARE FERROMAGNETICALLY COUPLED ALONG THE C-AXIS
400       IN CONTRAST TO THE CASE OF GDBA/SUB 2/CU/SUB 3/O/SUB 7/ WHERE THE
400       COUPLING ALONG THIS DIRECTION IS ANTIFERROMAGNETIC.
500       BARIUM COMPOUNDS; GADOLINIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MAGNETIC MOMENTS; MAGNETIC STRUCTURE; MAGNETIC
500       SUPERCONDUCTORS; NEEL TEMPERATURE; NEUTRON DIFFRACTION EXAMINATION OF
500       MATERIALS.
510       O DEFICIENCY; ANTIFERROMAGNETIC ORDER; MAGNETIC STRUCTURE;
510       FERROMAGNETIC ORDER; NEUTRON DIFFRACTION; MAGNETIC MOMENTS; NEEL
510       TEMPERATURE; HIGH TEMPERATURE SUPERCONDUCTOR; MAGNETIC ORDERING;
510       SINGLE CRYSTAL; WAVE VECTOR; GDBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       GDBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS GD/SS O/SS.

DOCUMENT=            1673
 AUTH     = TAN
 DT       = 02
 KN       = B40891404447
 LG       = ENGL
 SN       = ISSN 0950-0839
 YR       = 89
000       3395676
002       B40891404447
010       JOURNAL PAPER; EXPERIMENTAL.
100       SUPERLATTICES IN PB-DOPED BI-SR-CA-CU-O AND IN A NONSUPERCONDUCTING
100       SR-CA-CU-O PRECURSOR.
200       TAN, N.X.; BOURDILLON, A.J.; DOU, S.X.; LIU, H.K.; SORRELL, C.C.
220       SCH. OF MATER. SCI. ? ENG., NEW SOUTH WALES UNIV., KENSINGTON, NSW,
220       AUSTRALIA
310       PHILOS. MAG. LETT. (UK)
330       MAY 1989. VOL.59, NO.5, P.213-17, REF.11
350       ISSN 0950-0839, CODEN PMLEEG
400       SUPERLATTICES IN PB-DOPED SUPERCONDUCTING BI-SR-CA-CU-O ARE MARKEDLY
400       DIFFERENT FROM THOSE OBSERVED IN THE PARENT UNDOPED MATERIAL. THE PB
400       STABILISES THE HIGH TEMPERATURE SUPERCONDUCTING PHASE AND REDUCES
400       POLYTYPISM. A SRCACU/SUB 4/O/SUB 6+Y/ PRECURSOR FOR DIFFUSION-GROWN
400       SUPERCONDUCTING FILMS ALSO HAS A SUPERLATTICE STRUCTURE DUE TO
400       PERIODIC LATTICE DISTORTIONS IN THE BASAL PLANE.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LEAD; STRONTIUM COMPOUNDS; SUPERLATTICES.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; HIGH TEMPERATURE SUPERCONDUCTING
510       PHASE; DIFFUSION-GROWN SUPERCONDUCTING FILMS; SUPERLATTICE STRUCTURE;
510       PERIODIC LATTICE DISTORTIONS; BASAL PLANE; SRCACU/SUB 4/O/SUB 6+Y/
510       PRECURSOR; BISRCACUO:PB.
550       BISRCACUO:PB/SS BISRCACUO/SS BI/SS CA/SS CU/SS PB/SS SR/SS O/SS PB/EL
550       PB/DOP; SRCACU4O/SS CU4/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1674
 AUTH     = SALJE
 DT       = 02
 KN       = B40891404448
 LG       = ENGL
 SN       = ISSN 0950-0839
 YR       = 89
000       3395677
002       B40891404448
010       JOURNAL PAPER; EXPERIMENTAL.
100       ON THE GROWTH OF MODULATED UNTWINNED YBA/SUB 2/CU/SUB 3/O/SUB 7-
100       DELTA / SUPERCONDUCTORS.
200       SALJE, E.
220       IRC SUPERCOND., CAMBRIDGE, UK
310       PHILOS. MAG. LETT. (UK)
330       MAY 1989. VOL.59, NO.5, P.219-22, REF.18
350       ISSN 0950-0839, CODEN PMLEEG
400       IT IS SHOWN THAT SHOCK-HEATING AND QUENCHING OF YBA/SUB 2/CU/SUB
400       3/O/SUB 7- DELTA / SUPERCONDUCTORS LEAD TO A SUBSTANTIAL DECREASE OF
400       THE ORTHORHOMBICITY OF THE CRYSTAL STRUCTURE. THIS EFFECT IS ENHANCED
400       BY DOPING THE SAMPLES WITH ELEMENTS SUBSTITUTING AT THE CU(I)
400       POSITIONS.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       CRYSTAL GROWTH; HIGH-TEMPERATURE SUPERCONDUCTORS; IMPURITIES;
500       MATERIALS PREPARATION; QUENCHING (THERMAL); YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; MODULATED UNTWINNED SAMPLES;
510       GROWTH; SHOCK-HEATING; QUENCHING; ORTHORHOMBICITY; CRYSTAL STRUCTURE;
510       DOPING; CU(I) POSITIONS; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1675
 AUTH     = IYE
 DT       = 02
 KN       = B40891404449
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395678
002       B40891404449
010       JOURNAL PAPER; BIBLIOGRAPHY, REVIEW.
100       ANISOTROPIC TRANSPORT PROPERTIES OF HIGH T/SUB C/ OXIDES.
200       IYE, Y.
220       INST. FOR SOLID STATE PHYS., TOKYO UNIV., JAPAN
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       MARCH 1989. VOL.3, NO.3, P.367-88, REF.101
350       ISSN 0217-9792, CODEN IJPBEV
400       AN OVERVIEW OF THE CURRENT STATE OF EXPERIMENTAL STUDIES ON THE
400       TRANSPORT PROPERTIES OF BULK SINGLE CRYSTALS OF HIGH T/SUB C/ OXIDES
400       IS ATTEMPTED. EMPHASES ARE LAID UPON THE ANISOTROPY MANIFESTED IN THE
400       SUPERCONDUCTING AS WELL AS THE NORMAL STATE TRANSPORT PROPERTIES.
400       EXPERIMENTAL DATA ON YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / SINGLE
400       CRYSTALS ARE MAINLY DISCUSSED, BECAUSE MORE INTENSIVE EFFORTS HAVE
400       BEEN MADE SO FAR ON THIS MATERIAL THAN OTHERS. WHERE APPROPRIATE, THE
400       DATA ON (LA/SUB 1-X/SR/SUB X/)/SUB 2/CUO/SUB 4/ AND BI/SUB 2/SR/SUB
400       2/CACU/SUB 2/O/SUB 8+X/ SINGLE CRYSTALS IS MENTIONED.
500       HIGH-TEMPERATURE SUPERCONDUCTORS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; OXIDES; TRANSPORT PROPERTIES;
510       SINGLE CRYSTALS; ANISOTROPY; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /;
510       (LA/SUB 1-X/SR/SUB X/)/SUB 2/CUO/SUB 4/; BI/SUB 2/SR/SUB 2/CACU/SUB
510       2/O/SUB 8+X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; LASRCUO4/SS CU/SS
550       LA/SS O4/SS SR/SS O/SS; BI2SR2CACU2O/SS BI2/SS CU2/SS SR2/SS BI/SS
550       CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1676
 AUTH     = MATTIS
 DT       = 02
 KN       = B40891404450
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395679
002       B40891404450
010       JOURNAL PAPER; THEORETICAL.
100       ELECTROSTATIC MECHANISM AND THEORY OF HIGH-T/SUB C/ SUPERCONDUCTIVITY
100       IN LAYERED MATERIALS.
200       MATTIS, D.C.
220       DEPT. OF PHYS., UTAH UNIV., SALT LAKE CITY, UT, USA
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       MARCH 1989. VOL.3, NO.3, P.389-400, REF.12
350       ISSN 0217-9792, CODEN IJPBEV
400       ELECTROSTATIC FORCES AMONG STACKED METAL PLANES PROVIDE A VIABLE
400       MECHANISM FOR HIGH-T/SUB C/ SUPERCONDUCTIVITY. DIMENSIONLESS
400       PARAMETERS WHICH INVOLVE INTERPLANAR SEPARATIONS, DENSITY-OF-STATES,
400       AND CARRIER DENSITY, GOVERN THE OUTCOME. THE AUTHORS' MECHANISM
400       FAVORS HOLES OVER ELECTRONS, AND WORKS BEST IN LAYERED MATERIALS.
400       THEY IDENTIFY REGIONS IN PARAMETER SPACE WHERE SUPERCONDUCTIVITY IS
400       FAVORED, AND OTHERS WHERE CHARGE DENSITY WAVES ARE A POSSIBLE
400       OUTCOME. THEY FIND A DISTRIBUTION OF SUPERCONDUCTING ENERGY GAPS, AND
400       OBTAIN THE RESULTING QUASIPARTICLE DENSITY-OF-STATES.
500       CHARGE DENSITY WAVES; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       QUASI-PARTICLES; SUPERCONDUCTING ENERGY GAP.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ELECTROSTATIC FORCES; LAYERED
510       MATERIALS; CARRIER DENSITY; CHARGE DENSITY WAVES; SUPERCONDUCTING
510       ENERGY GAPS; QUASIPARTICLE DENSITY-OF-STATES.

DOCUMENT=            1677
 AUTH     = WANG
 DT       = 02
 KN       = B40891404451
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395680
002       B40891404451
010       JOURNAL PAPER; EXPERIMENTAL.
100       NONSUPERCONDUCTING PHASES AT GRAIN BOUNDARIES IN YBA/SUB 2/CU/SUB
100       3/O/SUB X/ SUPERCONDUCTORS.
200       WANG KEGUANG; ZHANG TINGJIE; ZHOU LIAN; ZHANG PINGXIANG; WANG SUQIAN;
200       HUANG HANLIANG
220       BAOJI INST. FOR NON-FERROUS METAL RES., SHAANXI, CHINA
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       MARCH 1989. VOL.3, NO.3, P.401-7, REF.11
350       ISSN 0217-9792, CODEN IJPBEV
400       THE MORPHOLOGY, COMPOSITION AND PHASES OF GRAIN BOUNDARIES IN YBA/SUB
400       2/CU/SUB 3/O/SUB X/ SUPERCONDUCTORS HAVE BEEN INVESTIGATED BY SEM,
400       TEM AND AES. THE RESULTS SHOW THAT SOME IMPURE PHASE PARTICLES ARE
400       PRESENT AT THE GRAIN BOUNDARY IN THE SAMPLES SINTERED AT 940 DEGREES
400       C FOR 26 HOURS, WHICH GROW TO BE A SHELL AROUND THE GRAIN AS THE
400       SINTERING TEMPERATURE INCREASES TO 970 DEGREES C. NO SUCH PARTICLE
400       HAS BEEN FOUND AT THE GRAIN BOUNDARIES IN THE SAMPLE SINTERED AT 920
400       DEGREES C FOR 26 HOURS BY SEM; J/SUB C/ IS THE HIGHEST IN THE
400       AUTHORS' STUDIED SAMPLES. AES AND TEM ANALYSES INDICATE THAT THE
400       GRAIN BOUNDARIES ARE COMPLEX MULTILAYER STRUCTURES CONSISTING OF
400       BARIUM-RICH, COPPER-RICH, CARBON-RICH, YTTRIUM AND OXYGEN-DEFICIENT
400       IMPURE PHASES. THE DOMINANT IMPURE PHASES HARMFUL TO J/SUB C/ AT THE
400       BOUNDARY ARE THE MIXTURES OF BACO/SUB 3/, CU/SUB 2/O, BAC/SUB 2/,
400       Y/SUB 2/C/SUB 3/ AND AN AMORPHOUS MATERIAL.
500       AUGER EFFECT; BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); GRAIN BOUNDARIES; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SCANNING ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; SINTERING; TRANSMISSION ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CRITICAL CURRENT DENSITY;
510       POLYCRYSTALLINE; GRAIN BOUNDARIES; MORPHOLOGY; COMPOSITION; SEM; TEM;
510       AES; IMPURE PHASE; SINTERING; 920 TO 970 DEGC; YBA/SUB 2/CU/SUB
510       3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 1.19 E+03 TO 1.24 E+03 K.

DOCUMENT=            1678
 AUTH     = LIN
 DT       = 02
 KN       = B40891404452
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395681
002       B40891404452
010       JOURNAL PAPER; EXPERIMENTAL.
100       THERMOPOWER ANISOTROPY OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / SINGLE
100       CRYSTALS.
200       LIN SHU-YUAN; LU LI; DUAN HONG-MIN; MA BEI-HAI; ZHANG DIAN-LIN
220       INST. OF PHYS., CHINESE ACAD. OF SCI., BEIJING, CHINA
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       MARCH 1989. VOL.3, NO.3, P.409-13, REF.14
350       ISSN 0217-9792, CODEN IJPBEV
400       THE THERMOPOWER OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / SINGLE
400       CRYSTALS HAS BEEN MEASURED FROM 300 K DOWN TO THE SUPERCONDUCTING
400       TRANSITION TEMPERATURE. STRONG ANISOTROPY WAS OBSERVED. WHILE THE
400       THERMOPOWER ALONG THE AB-PLANE SLIGHTLY INCREASED WITH DECREASING
400       TEMPERATURE, REACHING 5 APPROXIMATELY 8 MU V/K AROUND 120 K, THE
400       THERMOPOWER ALONG THE C-AXIS SHOWED TYPICAL METALLIC BEHAVIOR WITH A
400       ROOM TEMPERATURE VALUE AS LARGE AS APPROXIMATELY 30 MU V/K.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       THERMOELECTRICITY; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ANISOTROPY; SINGLE CRYSTALS;
510       THERMOPOWER; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
DOCUMENT=            1679
 AUTH     = NGUYEN
 DT       = 02
 KN       = B40891404453
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395682
002       B40891404453
010       JOURNAL PAPER; THEORETICAL.
100       EFFECTIVE SPINON-SPINON AND HOLON-HOLON INTERACTIONS IN RVB MODELS OF
100       HIGH T/SUB C/ SUPERCONDUCTIVITY.
200       NGUYEN VAN HIEU
220       INT. CENTRE FOR THEOR. PHYS., TRIESTE, ITALY
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       MARCH 1989. VOL.3, NO.3, P.415-25, REF.27
350       ISSN 0217-9792, CODEN IJPBEV
400       THE INTERACTION BETWEEN THE BOSONIC EXCITATIONS AS WELL AS BETWEEN
400       THE FERMIONIC ONES IN RVB SYSTEMS WITH THE (EXTENDED) HUBBARD
400       HAMILTONIAN WERE STUDIED BY MEANS OF THE SLAVE BOSON TECHNIQUE AND
400       PERTURBATION THEORY. THE CORRESPONDING EFFECTIVE HAMILTONIANS HAVE
400       BEEN FOUND. IT WAS SHOWN, IN PARTICULAR, THAT IN THE RVB SYSTEM WITH
400       TWO INTERPENETRATING SUBLATTICES THERE EXISTS AN EFFECTIVE ATTRACTION
400       BETWEEN TWO HOLONS OF DIFFERENT KINDS AS WELL AS BETWEEN TWO SPINONS
400       OF DIFFERENT KINDS IN THE SINGLET STATE.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; HUBBARD MODEL; PERTURBATION THEORY.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SPINON SPINON INTERACTIONS;
510       FERMIONIC EXCITATIONS; HOLON-HOLON INTERACTIONS; RVB MODELS; BOSONIC
510       EXCITATIONS; HUBBARD HAMILTONIAN; SLAVE BOSON TECHNIQUE; PERTURBATION
510       THEORY; SINGLET STATE.

DOCUMENT=            1680
 AUTH     = BOGOLIUB
 DT       = 02
 KN       = B40891404454
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395683
002       B40891404454
010       JOURNAL PAPER; THEORETICAL.
100       THE ROLE OF QUASI-ONE-DIMENSIONAL STRUCTURES IN HIGH-T/SUB C/
100       SUPERCONDUCTIVITY.
200       BOGOLIUBOV, N.M.; KOREPIN, V.E.
220       LENINGRAD BRANCH OF STEKLOV MATH. INST., USSR
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       MARCH 1989. VOL.3, NO.3, P.427-39, REF.23
350       ISSN 0217-9792, CODEN IJPBEV
400       THE CRITICAL EXPONENTS DESCRIBING THE DECREASE OF CORRELATION
400       FUNCTIONS AT LONG DISTANCES FOR THE ONE-DIMENSIONAL HUBBARD MODEL IS
400       OBTAINED. THE BEHAVIOUR OF CORRELATORS SHOWS THAT COOPER PAIRS OF
400       ELECTRONS ARE FORMED. THE ELECTRON TUNNELING BETWEEN THE CHAINS LEADS
400       TO THE EXISTENCE OF THE ANOMALOUS MEAN VALUES AND TO THE
400       SUPERCONDUCTIVE CURRENT. THE ANISOTROPY OF THE QUASI-ONE-DIMENSIONAL
400       SYSTEM LEADS TO THE RISE OF THE CRITICAL TEMPERATURE T/SUB C/.
500       COOPER PAIRS; HIGH-TEMPERATURE SUPERCONDUCTORS; HUBBARD MODEL;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; SUPERCONDUCTIVE TUNNELLING.
510       HIGH TEMPERATURE SUPERCONDUCTORS; QUASI-ONE-DIMENSIONAL STRUCTURES;
510       CRITICAL EXPONENTS; CORRELATION FUNCTIONS; ONE-DIMENSIONAL HUBBARD
510       MODEL; COOPER PAIRS; ELECTRON TUNNELING; ANISOTROPY; CRITICAL
510       TEMPERATURE.

DOCUMENT=            1681
 AUTH     = NAQVI
 DT       = 02
 KN       = B40891404455
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395684
002       B40891404455
010       JOURNAL PAPER; EXPERIMENTAL.
100       SUPERCONDUCTING PROPERTIES OF THE HIGH T/SUB C/ SUPERCONDUCTING
100       ER-BA-CU-O COMPOUND.
200       NAQVI, S.M.M.R.; AHMAD, F.; ALAM, J.; AHMAD, S.
220       INST. OF PURE ? APPL. PHYS., KARACHI UNIV., PAKISTAN
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       MARCH 1989. VOL.3, NO.3, P.441-4, REF.13
350       ISSN 0217-9792, CODEN IJPBEV
400       TWO BATCHES OF ER-BA-CU-O SUPERCONDUCTORS HAVE BEEN PREPARED. THE
400       ZERO RESISTANCE TEMPERATURE IS 86 K WITH T/SUB C/ ONSETS AT 99 K AND
400       92 K RESPECTIVELY. SUSCEPTIBILITY MEASUREMENTS SHOW A SUPERCONDUCTING
400       PHASE AT LN/SUB 2/. X-RAY DIFFRACTION RESULTS INDICATE TWO PHASES,
400       THE SUPERCONDUCTING BEING THE MAJOR ONE.
500       BARIUM COMPOUNDS; ERBIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MAGNETIC SUSCEPTIBILITY; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       X-RAY DIFFRACTION EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ONSET TEMPERATURES; SUSCEPTIBILITY;
510       ZERO RESISTANCE TEMPERATURE; X-RAY DIFFRACTION; 86 TO 99 K;
510       ER-BA-CU-O.
550       ERBACUO/SS BA/SS CU/SS ER/SS O/SS.
560       TEMPERATURE 8.6 E+01 TO 9.9 E+01 K.

DOCUMENT=            1682
 AUTH     = SEQUEIRA
 DT       = 02
 KN       = B40891404456
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395685
002       B40891404456
010       JOURNAL PAPER; EXPERIMENTAL.
100       A NEUTRON DIFFRACTION STUDY OF A SUPERCONDUCTING CUPRATE OF THE
100       BI-CA-SR-CU-O SYSTEM CONTAINING TWO CU-O SHEETS.
200       SEQUEIRA, A.; RAJAGOPAL, H. / GANAPATHI, L.; VIJAYARAGHAVAN, R.; RAO,
200       C.N.R.
220       NEUTRON PHYS. DIV., BHABHA ATOMIC RES. CENTRE, BOMBAY, INDIA
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       MARCH 1989. VOL.3, NO.3, P.445-54, REF.14
350       ISSN 0217-9792, CODEN IJPBEV
400       THE STRUCTURE OF A NOMINALLY CA-RICH COMPOSITION OF THE N=2 MEMBER OF
400       THE BI/SUB 2/(CA,SR)/SUB N+1/CU/SUB N/O/SUB 2N+4/ SERIES HAS BEEN
400       INVESTIGATED BY NEUTRON DIFFRACTION PROFILE ANALYSIS. THE RESULTS
400       SUGGEST THAT THE AMAA SPACE GROUP MAY BE MORE APPROPRIATE THAN THE
400       FMMM SPACE GROUP.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; NEUTRON
500       DIFFRACTION EXAMINATION OF MATERIALS; STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE, SUPERCONDUCTOR; CRYSTAL STRUCTURE; NEUTRON
510       DIFFRACTION PROFILE ANALYSIS; SPACE GROUP; BI-CA-SR-CU-O.
550       BICASRCUO/SS BI/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1683
 AUTH     = BOCQUET
 DT       = 02
 KN       = B40891404457
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395686
002       B40891404457
010       JOURNAL PAPER; EXPERIMENTAL.
100       INVESTIGATION BY XPS OF THE ELECTRONIC STRUCTURES OF THE N=1,2,3
100       AURIVILLIUS PHASES.
200       BOCQUET, A.E.; DOBSON, J.F.; HEALY, P.C.; MYHRA, S. / THOMPSON, J.G.
220       DIV. OF SCI. ? TECHNOL., GRIFFITH UNIV., NATHAN, QLD., AUSTRALIA
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       MARCH 1989. VOL.3, NO.3, P.455-63, REF.22
350       ISSN 0217-9792, CODEN IJPBEV
400       THE AURIVILLIUS PHASES OF ORDER N=1,2,3 HAVE BEEN INVESTIGATED BY
400       X-RAY PHOTOELECTRON SPECTROSCOPY. IT IS FOUND FROM THESE MEASUREMENTS
400       THAT THERE ARE NO OBVIOUS ELECTRONIC SIMILARITIES BETWEEN THESE
400       PHASES AND THE STRUCTURALLY RELATED HTSC LAYER COMPOUNDS.
500       BAND STRUCTURE OF CRYSTALLINE SEMICONDUCTORS AND INSULATORS; BISMUTH
500       COMPOUNDS; X-RAY PHOTOELECTRON SPECTRA.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ELECTRONIC STRUCTURES; AURIVILLIUS
510       PHASES; X-RAY PHOTOELECTRON SPECTROSCOPY; LAYER COMPOUNDS.
550       BI/SS O/SS.

DOCUMENT=            1684
 AUTH     = KAO
 DT       = 02
 KN       = B40891404458
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395687
002       B40891404458
010       JOURNAL PAPER; EXPERIMENTAL.
100       EFFECTS OF CHEMICAL DOPING AND STOICHIOMETRIC VARIATION IN HIGH-T/SUB
100       C/ SUPERCONDUCTORS.
200       KAO, Y.H.; YAO, Y.D.; SONG, L.W.
220       DEPT. OF PHYS., STATE UNIV. OF NEW YORK, STONY BROOK, NY, USA
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       APRIL 1989. VOL.3, NO.4, P.573-94, REF.34
350       ISSN 0217-9792, CODEN IJPBEV
400       SUPERCONDUCTING PROPERTIES OF VARIOUS CHEMICALLY-DOPED HIGH-T/SUB C/
400       MATERIALS ARE INVESTIGATED. BY USING THE RESULTS OBTAINED WITH CU-
400       AND BI-DEFICIENT Y-BA-CU-O AND BI-SR-CA-CU-O SYSTEMS AS BASIS,
400       VARIATIONS OF THE TRANSITION TEMPERATURE T/SUB C/ CRITICAL CURRENT
400       DENSITY J/SUB C/, ROOM TEMPERATURE RESISTIVITY RHO , AND OXYGEN
400       CONTENT ARE COMPARED FOR DIFFERENT DOPANT CONTENTS. IN SEVERAL CASES,
400       J/SUB C/ AND RHO ARE FOUND TO BE CORRELATED AS BOTH QUANTITIES SHOW
400       AN EXPONENTIAL DEPENDENCE ON THE DOPANT CONCENTRATION. MOST DOPANTS
400       RESULT IN A MONOTONIC DECREASE OF T/SUB C/ AND J/SUB C/, EXCEPT FOR
400       AG, F, AND CL. SUBSTITUTION OF AG AND PB FOR CU AND BI IN
400       BI-SR-CA-CU-O INDICATES A CONDITION FOR COMPATIBILITY BETWEEN THE
400       IMPURITY ATOM AND THE LOCAL STRUCTURE IN THE HOST MATRIX. RESULTS
400       SUGGEST THAT THE PREDOMINANT MECHANISM FOR HIGH-T/SUB C/
400       SUPERCONDUCTIVITY IS MOST LIKELY ASSOCIATED WITH SHORT-RANGE-ORDER
400       STRUCTURE IN THE MATERIAL.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL
500       CURRENT DENSITY (SUPERCONDUCTIVITY); ELECTRICAL CONDUCTIVITY OF
500       CRYSTALLINE SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; IMPURITIES; SHORT-RANGE ORDER; STOICHIOMETRY;
500       STRONTIUM COMPOUNDS; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; O CONTENT; IMPURITIES;
510       STOICHIOMETRY; CHEMICAL DOPING; TRANSITION TEMPERATURE; CRITICAL
510       CURRENT DENSITY; ROOM TEMPERATURE RESISTIVITY; LOCAL STRUCTURE;
510       SHORT-RANGE-ORDER; 300 K; Y-BA-CU-O; BI-SR-CA-CU-O.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS; BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS
550       O/SS.
560       TEMPERATURE 3.0 E+02 K.

DOCUMENT=            1685
 AUTH     = WANG
 DT       = 02
 KN       = B40891404459
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395688
002       B40891404459
010       JOURNAL PAPER; EXPERIMENTAL.
100       STUDY OF HIGH-T/SUB C/ SUPERCONDUCTING MATERIALS IN
100       (BI.PB)-SR-CA-CU-O SYSTEM.
200       WANG YUGUI; JIAO XINPING; WANG JINSONG; WANG NANLING; HAN GUCHANG
220       INST. OF PLASMA PHYS., ACAD. SINICA, HEFEI, CHINA
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       APRIL 1989. VOL.3, NO.4, P.595-001, REF.5
350       ISSN 0217-9792, CODEN IJPBEV
400       THE HIGH-T/SUB C/ SUPERCONDUCTING MATERIALS IN (BI.PB)-SR-CA-CU-O
400       SYSTEM WITH ZERO RESISTANCE TEMPERATURE OF 104 K HAVE BEEN MADE BY
400       SOLID STATE REACTION. THE SYSTEM HAS BEEN COMPARED WITH BISRCACU/SUB
400       2/O/SUB Y/ COMPOSITION. THE PRELIMINARY RESULTS SHOW THAT PB WOULD
400       MAKE THE SUPERCONDUCTING POLYCRYSTALLINE GRAINS GROW SMALLER
400       RESULTING IN THE SEPARATION OF 100-110 K AND 80 K SUPERCONDUCTING
400       CRYSTALLINE GRAINS AND CONNECTIVITY AMONG THE HIGH-T/SUB C/ PHASE
400       GRAINS. BY COMPARISON, THE PROPORTION OF SUPERCONDUCTING PHASE IS NOT
400       INCREASED IN THE PB DOPED MULTIPHASE SAMPLES. THE MAGNETIZATION
400       MEASUREMENT INDICATES THAT ALL OF THEM BELONG TO THE WEAK PINNING
400       SUPERCONDUCTORS.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CERAMICS; FLUX PINNING; GRAIN
500       SIZE; HIGH-TEMPERATURE SUPERCONDUCTORS; LEAD COMPOUNDS;
500       MAGNETISATION; STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; GRAIN SIZE; MAGNETIC SUSCEPTIBILITY;
510       SOLID STATE REACTION; SUPERCONDUCTING POLYCRYSTALLINE GRAINS;
510       CRYSTALLINE GRAINS; CONNECTIVITY; MAGNETIZATION; WEAK PINNING
510       SUPERCONDUCTORS; BISRCACU/SUB 2/O/SUB Y/; BI/SUB 2-X/PB/SUB X/SR/SUB
510       2/CA/SUB 2/CU/SUB 3/O/SUB Y/; BI/SUB 2-X/PB/SUB X/SR/SUB 2/CA/SUB
510       2/CU/SUB 4/O/SUB Y/.
550       BIPBSR2CA2CU3O/SS CA2/SS CU3/SS SR2/SS BI/SS CA/SS CU/SS PB/SS SR/SS
550       O/SS; BIPBSR2CA2CU4O/SS CA2/SS CU4/SS SR2/SS BI/SS CA/SS CU/SS PB/SS
550       SR/SS O/SS; BISRCACU2O/SS CU2/SS BI/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1686
 AUTH     = VASSILEV
 DT       = 02
 KN       = B40891404460
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395689
002       B40891404460
010       JOURNAL PAPER; EXPERIMENTAL.
100       SINTERING CONDITIONS AND SUPERCONDUCTIVITY IN THE Y-BA-CA-CU-O
100       SYSTEM.
200       VASSILEV, P.G.; MARINOVA, M.; DIMITROV, I. / NENKOV, K.; KOVACHEV, V.
220       FAC. OF PHYS., SOFIA UNIV., BULGARIA
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       APRIL 1989. VOL.3, NO.4, P.603-10, REF.8
350       ISSN 0217-9792, CODEN IJPBEV
400       SUPERCONDUCTING SAMPLES FROM STARTING COMPOSITIONS Y(BA/SUB
400       1-X/CA/SUB X/)/SUB 2/CU/SUB 3/O/SUB 7- DELTA / AT 0<OR=X<OR=1 ARE
400       PREPARED AT VARIOUS T/SUB SINT/. IT WAS FOUND THAT THE SINTERING
400       TEMPERATURE NEEDS TO BE INCREASED WITH X. SUPERCONDUCTING CHAINS OF
400       Y-CA-CU-O WITH A VOLUME FRACTION BELOW 5% WERE FORMED IN SAMPLES WITH
400       A VERY HIGH OVERALL NORMAL STATE RESISTIVITY, WHEN SINTERED ABOVE
400       1070 DEGREES C. THE ZERO RESISTANCE POINT FOR SUCH SAMPLES WAS AT
400       ABOUT 70-80 K.
500       BARIUM COMPOUNDS; CALCIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF
500       CRYSTALLINE SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; POWDER TECHNOLOGY; SINTERING; SUPERCONDUCTING
500       TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CRITICAL TEMPERATURE;
510       SUPERCONDUCTING CHAINS; SINTERING TEMPERATURE; VOLUME FRACTION;
510       NORMAL STATE RESISTIVITY; Y-BA-CA-CU-O.
550       YBACACUO/SS BA/SS CA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1687
 AUTH     = BELOSLUD
 DT       = 02
 KN       = B40891404461
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395690
002       B40891404461
010       JOURNAL PAPER; THEORETICAL.
100       LATTICE DYNAMICS OF YBA/SUB 2/CU/SUB 3/O/SUB 7/ IN THE IONIC MODEL.
200       BELOSLUDOV, V.R.; LAVRENTIEV, M.Y. / SYSKIN, S.A.
220       INST. OF INORG. CHEM., NOVOSIBIRSK, USSR
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       APRIL 1989. VOL.3, NO.4, P.611-15, REF.14
350       ISSN 0217-9792, CODEN IJPBEV
400       A SIMPLE MODEL OF INTERATOMIC INTERACTIONS IN YBA/SUB 2/CU/SUB
400       3/O/SUB 7/, WHICH TAKES INTO ACCOUNT LONG-RANGE COULOMBIC INTERACTION
400       AND SHORT-RANGE REPULSION OF THE BORN-MAYER TYPE, IS PRESENTED. ON
400       THE BASIS OF THIS MODEL THE CALCULATION OF LATTICE VIBRATIONS IN
400       YBA/SUB 2/CU/SUB 3/O/SUB 7/ IS PERFORMED, AND PHONON DISPERSION
400       CURVES AND DENSITY OF PHONON STATES ARE FOUND. A COMPARISON WITH
400       EXPERIMENTAL DATA ON IR AND RAMAN SPECTRA IS PRESENTED.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; LATTICE PHONONS;
500       PHONON DISPERSION RELATIONS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; IR SPECTRA; PHONON DENSITY OF
510       STATES; LATTICE DYNAMICS; SHORT-RANGE BORN-MAYER REPULSION; IONIC
510       MODEL; LONG-RANGE COULOMBIC INTERACTION; LATTICE VIBRATIONS; PHONON
510       DISPERSION CURVES; RAMAN SPECTRA; YBA/SUB 2/CU/SUB 3/O/SUB 7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1688
 AUTH     = SHAPIRO
 DT       = 02
 KN       = B40891404462
 LG       = ENGL
 SN       = ISSN 0217-9792
 YR       = 89
000       3395691
002       B40891404462
010       JOURNAL PAPER; THEORETICAL.
100       THE INFLUENCE OF THE MAGNETIC IMPURITIES ON THE HTS CRITICAL
100       TEMPERATURE.
200       SHAPIRO, B.Y.
220       INST. OF INORG. CHEM., ACAD. OF SCI., NOVOSIBIRSK, USSR
310       INT. J. MOD. PHYS. B (SINGAPORE)
330       APRIL 1989. VOL.3, NO.4, P.617-24, REF.10
350       ISSN 0217-9792, CODEN IJPBEV
400       THE TRANSFER MECHANISM OF HOLES IN THE 123 COMPOUNDS BETWEEN CHAINS
400       AND LAYERS BY OPTICAL TRANSVERSE BOSON MODE IS INTRODUCED. THE
400       CRITICAL TEMPERATURE AS A FUNCTION OF THE MAGNETIC IMPURITY
400       CONCENTRATIONS BOTH IN THE PLANES AND IN THE CHAINS IS OBTAINED. THE
400       CRITICAL TEMPERATURE IS DETERMINED BY THE DIFFERENCE OF THE
400       CONCENTRATIONS IN THE CHAINS AND IN THE PLANES. THE DEPENDENCE
400       STRONGLY DIFFERS FROM THE USUAL ABRIKOSOV-GOR'KOV BEHAVIOUR. THE
400       RESULTS ARE CORRECTED FOR ANY LAYERED STRUCTURE WITH TWO DIFFERENT
400       TYPES OF LAYERS.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; IMPURITIES; SUPERCONDUCTING
500       TRANSITION TEMPERATURE.
510       HOLE TRANSFER MECHANISM; HIGH TEMPERATURE SUPERCONDUCTIVITY; MAGNETIC
510       IMPURITIES; CRITICAL TEMPERATURE; 123 COMPOUNDS; OPTICAL TRANSVERSE
510       BOSON MODE; LAYERED STRUCTURE.

DOCUMENT=            1689
 AUTH     = CAI
 DT       = 02
 KN       = B40891404466
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395695
002       B40891404466
010       JOURNAL PAPER; PRACTICAL, EXPERIMENTAL.
100       JOSEPHSON MICROSTRIP MIXER USING SUPERCONDUCTOR AT LIQUID NITROGEN
100       TEMPERATURES.
200       CAI, S.Z.; HOU, Y.S.; YU, E.X. / QIU, J.W.; MIAO, B.C.
220       E.E. DEPT., FUDAN UNIV., SHANGHAI, CHINA
310       MOD. PHYS. LETT. B (SINGAPORE)
330       20 MARCH 1989. VOL.3, NO.4, P.349-53, REF.2
350       ISSN 0217-9849
400       MATCHING BETWEEN WAVEGUIDE AND JOSEPHSON JUNCTION IS A VERY IMPORTANT
400       PROBLEM FOR MAKING A JOSEPHSON MIXER. IN THIS PAPER THIS PROBLEM IS
400       SOLVED BY PUTTING THE JUNCTION IN A MICROSTRIP CIRCUIT. THE JOSEPHSON
400       MICROSTRIP MIXER IS EASY TO ADJUST, SMALL DIMENSION AND LIGHT WEIGHT.
400       SOME NEW RESULTS ARE ALSO PRESENTED.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MIXERS (CIRCUITS); STRIP LINE
500       COMPONENTS; SUPERCONDUCTING JUNCTION DEVICES.
510       HIGH TEMPERATURE SUPERCONDUCTORS; JOSEPHSON MICROSTRIP MIXER;
510       WAVEGUIDE; JOSEPHSON JUNCTION.

DOCUMENT=            1690
 AUTH     = BOBRAKOV
 DT       = 02
 KN       = B40891404467
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395696
002       B40891404467
010       JOURNAL PAPER; EXPERIMENTAL.
100       SQUID OPERATING AT LIQUID NITROGEN TEMPERATURES.
200       BOBRAKOV, V.F.; POLUSHKIN, V.N.; VASILIEV, B.V.
220       LAB. OF NEUTRON PHYS., JINR, DUBNA, USSR
310       MOD. PHYS. LETT. B (SINGAPORE)
330       10 APRIL 1989. VOL.3, NO.5, P.415-19, REF.10
350       ISSN 0217-9849
400       A TWO-HOLE RF-SQUID FABRICATED FROM HIGH-TEMPERATURE SUPERCONDUCTING
400       YTTRIUM-BASED CERAMIC IS DESCRIBED. SQUID OPERATES AT LIQUID NITROGEN
400       TEMPERATURES AND DEMONSTRATES ALL PRINCIPAL FEATURES OF RF-SQUID
400       SIGNAL. AT HIGH FREQUENCY, THE NOISE LEVEL OF THE HIGH-T/SUB C/ SQUID
400       IS ONLY THREE TIMES AS MUCH AS THE CORRESPONDING LEVEL OF THE
400       COMMERCIAL HELIUM RF-SQUID. THE 1/F-NOISES BEGIN FROM 100 HZ
400       APPROXIMATELY SO THAT AT LOW FREQUENCIES THE HIGH-T/SUB C/ SQUID
400       SENSITIVITY IS AN ORDER OF 1.5 LESS THAN THE HELIUM SQUID
400       SENSITIVITY.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SQUIDS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; TWO-HOLE RF-SQUID; NOISE LEVEL;
510       1/F-NOISES; SQUID; YBA/SUB 2/CU/SUB 3/O/SUB 7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1691
 AUTH     = LARKIN
 DT       = 02
 KN       = B40891404468
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395697
002       B40891404468
010       JOURNAL PAPER; THEORETICAL.
100       ELECTROMAGNETIC PROPERTIES OF HIGH-T/SUB C/ SUPERCONDUCTORS.
200       LARKIN, A.I.
220       SERIN PHYS. LAB., RUTGERS UNIV., PISCATAWAY, NJ, USA
310       MOD. PHYS. LETT. B (SINGAPORE)
330       20 APRIL 1989. VOL.3, NO.6, P.453-63, REF.36
350       ISSN 0217-9849
400       THE THEORY OF SUPERCONDUCTIVITY IS DIVIDED INTO TWO WEAKLY CONNECTED
400       PARTS: (1) MECHANISM OF SUPERCONDUCTIVITY AND (2) ELECTROMAGNETIC
400       PROPERTIES OF SUPERCONDUCTORS. THE DISCOVERY OF HIGH T/SUB C/
400       SUPERCONDUCTORS HAS LED TO NEW IDEAS IN BOTH THE FIRST AND SECOND
400       PARTS. IN THE FIRST PART THERE CAME INTO EXISTENCE THE THEORY OF
400       HIGHLY CORRELATED FERMI SYSTEMS, IN THE SECOND, THE THEORY OF GLASSY
400       PROPERTIES. IN HIGHLY CORRELATED SYSTEMS, OFTEN STRONG COULOMB
400       REPULSION LEADS TO A MAGNETIC STATE, E.G. NEEL ANTIFERROMAGNETIC.
400       WITH SOME TYPE OF INTERACTIONS THE GROUND STATE OF THE SYSTEM MAY BE
400       NON-MAGNETIC. IN THIS STATE OF A SPIN LIQUID THE TIME AVERAGE OF EACH
400       SPIN IS ZERO. AN EXAMPLE OF SUCH A STATE MAY BE RVB. IN THIS STATE
400       THERE ARE TWO TYPES OF EXCITATIONS: SPINONS-FERMIONS AND
400       HOLONS-BOSONS. THESE EXCITATIONS INTERACT WITH A GAUGE FIELD.
500       HIGH-TEMPERATURE SUPERCONDUCTORS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ELECTROMAGNETIC PROPERTIES;
510       CORRELATED FERMI SYSTEMS; GLASSY PROPERTIES; COULOMB REPULSION; NEEL
510       ANTIFERROMAGNETIC; SPIN LIQUID; RVB; SPINONS-FERMIONS; HOLONS-BOSONS;
510       GAUGE FIELD.

DOCUMENT=            1692
 AUTH     = ZHU
 DT       = 02
 KN       = B40891404470
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395699
002       B40891404470
010       JOURNAL PAPER; EXPERIMENTAL.
100       ELASTICITY BEHAVIOR (5-350 DEGREES C) AND SUPERCONDUCTIVITY IN
100       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
200       ZHU, J.S.; WANG, Y.N.; GU, M.; KUI, J.S.
220       DEPT. OF PHYS., NANJING UNIV., CHINA
310       MOD. PHYS. LETT. B (SINGAPORE)
330       20 APRIL 1989. VOL.3, NO.6, P.493-8, REF.11
350       ISSN 0217-9849
400       ELASTICITY BEHAVIOR (5-350 DEGREES C) AND THE RELATIONSHIP BETWEEN
400       ELASTICITY AND SUPERCONDUCTIVITY IN YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA
400       / HAVE BEEN STUDIED. OXYGEN CONTENT IN THE SAMPLE PLAYS AN IMPORTANT
400       ROLE IN BOTH PROPERTIES. SAMPLE DEPENDENT VARIATIONS IN ELASTIC
400       MODULUS WERE OBSERVED.
500       BARIUM COMPOUNDS; ELASTIC MODULI; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SUPERCONDUCTIVITY; ELASTICITY;
510       ELASTIC MODULUS; 5 TO 350 DEGC; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 2.78 E+02 TO 6.23 E+02 K.

DOCUMENT=            1693
 AUTH     = YAO
 DT       = 02
 KN       = B40891404471
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395700
002       B40891404471
010       JOURNAL PAPER; EXPERIMENTAL.
100       CHANGES IN PHYSICAL PROPERTIES OF THE HIGH-T/SUB C/ SUPERCONDUCTOR
100       Y-BA-CU-O DUE TO CU DEFICIENCY.
200       YAO, Y.D.; KAO, Y.H. / SIMMINS, J.J.; SNYDER, R.L.; TAO, Z.; JONES,
200       K.W.
220       DEPT. OF PHYS., STATE UNIV. OF NEW YORK, STONY BROOK, NY, USA
310       MOD. PHYS. LETT. B (SINGAPORE)
330       20 APRIL 1989. VOL.3, NO.6, P.499-503, REF.4
350       ISSN 0217-9849
400       STOICHIOMETRY OF THE WELL-KNOWN HIGH-T/SUB C/ COMPOUND YBA/SUB
400       2/CU/SUB 3/O/SUB Y/ IS MODIFIED BY VARYING THE CU CONCENTRATION IN
400       THE SYSTEM, AND CHANGES IN THE OXYGEN CONTENT AND SUPERCONDUCTING
400       PROPERTIES ARE INVESTIGATED. THE OXYGEN CONTENT SHOWS A NONLINEAR
400       DEPENDENCE ON THE CU CONCENTRATION. FOR CU DEFICIENCY UP TO 20%, THE
400       TRANSITION TEMPERATURE T/SUB C/ REMAINS AT A NEARLY CONSTANT VALUE OF
400       93 K. X-RAY DIFFRACTION MEASUREMENTS SHOW THAT THE COMPOUND IS
400       ORTHORHOMBIC IN THIS RANGE OF STOICHIOMETRIC VARIATION, AND THE
400       CU-DEFICIENT SUPERCONDUCTOR IS SINGLE PHASE. THE ROOM TEMPERATURE
400       RESISTIVITY INCREASES EXPONENTIALLY WHILE THE CRITICAL CURRENT
400       DENSITY DECREASES EXPONENTIALLY WITH INCREASING CU DEFICIENCY. THESE
400       RESULTS INDICATE THAT THE PREDOMINANT MECHANISM FOR HIGH-T/SUB C/
400       SUPERCONDUCTIVITY IS CLOSELY RELATED TO THE LOCAL STRUCTURE AROUND
400       THE CU AND O ATOMS.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       HIGH-TEMPERATURE SUPERCONDUCTORS; STOICHIOMETRY; SUPERCONDUCTING
500       TRANSITION TEMPERATURE; X-RAY DIFFRACTION EXAMINATION OF MATERIALS;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; STOICHIOMETRY; TRANSITION
510       TEMPERATURE; X-RAY DIFFRACTION; RESISTIVITY; CRITICAL CURRENT
510       DENSITY; STRUCTURE; 93 K; YBA/SUB 2/CU/SUB 3/O/SUB Y/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 9.3 E+01 K.

DOCUMENT=            1694
 AUTH     = CAO
 DT       = 02
 KN       = B40891404472
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395701
002       B40891404472
010       JOURNAL PAPER; EXPERIMENTAL.
100       MAGNETIC PROPERTIES AND CRITICAL CURRENT OF THE BISRCACUO SYSTEM
100       UNDER LOW MAGNETIC FIELDS.
200       CAO, L.Z.; YUE, Y.; WANG, J.; MAO, S.D.; LIU, H.B.; CAI, W.L.; ZHANG,
200       Y.H.
220       DEPT. OF PHYS., UNIV. OF SCI. ? TECHNOL. OF CHINA, HEFEI, CHINA
310       MOD. PHYS. LETT. B (SINGAPORE)
330       20 APRIL 1989. VOL.3, NO.6, P.505-8, REF.3
350       ISSN 0217-9849
400       THE LOWER CRITICAL FIELD H/SUB C1/ IS DETERMINED BY AC GAMMA VERSUS H
400       AND M VERSUS H. FOR A SAMPLE OF BISRCACUO WITH T/SUB C/(O)=89 K,
400       H/SUB C1/ IS EQUAL TO 17.5 OE AT 77 K. MEASUREMENT OF THE CRITICAL
400       CURRENT J/SUB C/ UNDER LOW MAGNETIC FIELDS SHOWS THAT THERE IS A PEAK
400       ON THE J/SUB C/-H CURVE AT ABOUT 1 OE DUE TO THE EXISTENCE OF THE
400       EARTH'S MAGNETIC FIELD. THE CURRENT DENSITY IS VERY SMALL IN THE
400       BISRCACUO SYSTEM AND J/SUB C/ IS NEARLY ZERO WHEN THE MAGNETIC FIELD
400       REACHES 150 OE. IT IS SUGGESTED THAT THE PINNING FORCE IS VERY WEAK
400       IN THIS MATERIAL.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); FLUX PINNING; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MAGNETIC SUSCEPTIBILITY; STRONTIUM COMPOUNDS; SUPERCONDUCTING
500       CRITICAL FIELD.
510       HIGH TEMPERATURE SUPERCONDUCTOR; AC MAGNETIC SUSCEPTIBILITY; EARTH
510       MAGNETIC FIELD; CRITICAL CURRENT; LOWER CRITICAL FIELD; CURRENT
510       DENSITY; PINNING FORCE; 89 K; BISRCACUO.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS.
560       TEMPERATURE 8.9 E+01 K.

DOCUMENT=            1695
 AUTH     = DABROWSK
 DT       = 02
 KN       = B40891404473
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395702
002       B40891404473
010       JOURNAL PAPER; NEW DEVELOPMENT, EXPERIMENTAL.
100       PREPARATION OF SUPERCONDUCTING THICK FILMS OF YBA/SUB 2/CU/SUB
100       3/O/SUB 7/ BY DEPOSITION OF A SUPERCONDUCTING PRECURSOR INK.
200       DABROWSKI, B.; HINKS, D.G.
220       DIV. OF MATER. SCI., ARGONNE NAT. LAB., ARGONNE, IL, USA
310       MOD. PHYS. LETT. B (SINGAPORE)
330       20 APRIL 1989. VOL.3, NO.6, P.509-13, REF.7
350       ISSN 0217-9849
400       A SIMPLE AND RELIABLE METHOD OF PRODUCING GOOD QUALITY
400       SUPERCONDUCTING THICK FILMS OF YBA/SUB 2/CU/SUB 3/O/SUB 7/ WITH ZERO
400       RESISTANCE ABOVE 87 K IS PRESENTED. THE METHOD CONSISTS OF DIPPING,
400       SPRAYING OR PAINTING A SUPERCONDUCTING PRECURSOR INK ON A SUBSTRATE
400       (OF ARBITRARY DIMENSIONS) WITH SUBSEQUENT SINTERING IN FLOWING OXYGEN
400       AT TEMPERATURES CLOSE TO THE MELTING TEMPERATURE OF YBA/SUB 2/CU/SUB
400       3/O/SUB 7/. SUPERCONDUCTING TRANSITION TEMPERATURES (T/SUB C/) AS A
400       FUNCTION OF SUBSTRATE MATERIAL, FIRING TEMPERATURE AND NATURE OF THE
400       PRECURSOR INK ARE DISCUSSED. BEO WAS FOUND TO BE THE BEST SUBSTRATE
400       FOR THE PROCESS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SINTERING;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; THICK FILMS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; PREPARATION; SUPERCONDUCTING THICK
510       FILMS; DIPPING; SPRAYING; PAINTING; SUPERCONDUCTING PRECURSOR INK;
510       SINTERING; TRANSITION TEMPERATURES; FIRING; 87 K; YBA/SUB 2/CU/SUB
510       3/O/SUB 7/; BEO SUBSTRATE.
550       BEO/SUR BE/SUR O/SUR BEO/BIN BE/BIN O/BIN; YBA2CU3O7/SS BA2/SS CU3/SS
550       BA/SS CU/SS O7/SS O/SS Y/SS.
560       TEMPERATURE 8.7 E+01 K.

DOCUMENT=            1696
 AUTH     = MANGHI
 DT       = 02
 KN       = B40891404474
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395703
002       B40891404474
010       JOURNAL PAPER; EXPERIMENTAL.
100       SINGLE CRYSTAL GROWTH AND STRUCTURAL ANALYSIS OF LA/SUB 6.5/SR/SUB
100       1.5/CU/SUB 8/O/SUB 20/.
200       MANGHI, E.; POLLA, G.; DE PERAZZO, P.K.; BAGGIO, R.F.; PALACIOS, T.
220       COMISION NACIONAL DE ENERGIA ATOMICA, BUENOS AIRES, ARGENTINA
310       MOD. PHYS. LETT. B (SINGAPORE)
330       20 APRIL 1989. VOL.3, NO.6, P.515-18, REF.5
350       ISSN 0217-9849
400       THE AIM OF THE WORK IS TO INVESTIGATE THE CHARACTERISTICS OF
400       FLUX-GROWN LA/SUB 6.5/SR/SUB 1.5/CU/SUB 8/O/SUB 20/ SINGLE CRYSTALS
400       (COMPOSITION ANALYSIS, STRUCTURAL PROPERTIES) AND THEIR POSSIBLE
400       RELATIONSHIP TO OTHER STABLE PHASES FOUND IN THE LITERATURE, MAINLY
400       THE ONE REPORTED BY RAKHO, MICHEL AND RAVEAU (1988) WITH VERY SIMILAR
400       LATTICE PARAMETERS. THE CRYSTALS WERE CHARACTERIZED BY SCANNING
400       ELECTRON MICROSCOPY (SEM), X-RAY DIFFRACTION, ELECTRON PROBE
400       MICROANALYSIS (EPMA), AND SQUID SUSCEPTIBILITY MEASUREMENTS.
500       CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS; CRYSTAL GROWTH FROM
500       SOLUTION; HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS;
500       MAGNETIC SUSCEPTIBILITY; SCANNING ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; FLUX GROWTH; STRUCTURAL ANALYSIS;
510       SINGLE CRYSTALS; COMPOSITION ANALYSIS; SCANNING ELECTRON MICROSCOPY;
510       X-RAY DIFFRACTION; ELECTRON PROBE MICROANALYSIS; SQUID;
510       SUSCEPTIBILITY; LA/SUB 6.5/SR/SUB 1.5/CU/SUB 8/O/SUB 20/.
550       LA6.5SR1.5CU8O20/SS LA6.5/SS SR1.5/SS CU8/SS O20/SS CU/SS LA/SS SR/SS
550       O/SS.

DOCUMENT=            1697
 AUTH     = KATARIA
 DT       = 02
 KN       = B40891404475
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395704
002       B40891404475
010       JOURNAL PAPER; EXPERIMENTAL.
100       BEHAVIOR OF A DOUBLE JUNCTION SQUID OF A Y-BA-CU-O BULK
100       SUPERCONDUCTOR.
200       KATARIA, N.D.; TOMAR, V.S.; OJHA, V.N.; KUMAR, M.; REDDY, G.S.N.;
200       GUPTA, A.K.
220       NAT. PHYS. LAB., NEW DELHI, INDIA
310       MOD. PHYS. LETT. B (SINGAPORE)
330       20 APRIL 1989. VOL.3, NO.6, P.519-24, REF.23
350       ISSN 0217-9849
400       A DC SQUID LIKE GEOMETRY WITH A RING AND A PAIR OF CONSTRICTIONS IS
400       CARVED OUT OF A BULK Y-BA-CU-O SUPERCONDUCTOR. THE I-V CURVES EXHIBIT
400       HYSTERESIS ARISING DUE TO TRAPPING OF THE SELF FIELDS. THE V- PHI
400       CURVES SHOW MULTIPLE FLUX PERIODICITIES WITH UNEQUAL AMPLITUDES.
400       THERE IS A TWENTY FOLD RISE IN THE AMPLITUDE OF VOLTAGE MODULATION ON
400       COOLING FROM 77 TO 4.2 K. THE COMPLICATIONS OF THE PRESENCE OF SERIES
400       AND PARALLEL ARRAYS OF GRANULAR JUNCTIONS ARE ATTRIBUTED RESPECTIVELY
400       TO LARGE AND SMALL PERIODICITIES OBSERVED IN THE V- PHI CURVES. THE
400       MODULATION STRUCTURE GETS MORE RESOLVED AT 4.2 K DUE TO A REDUCTION
400       IN THERMAL NOISE EFFECTS.
500       BARIUM COMPOUNDS; ELECTRON DEVICE NOISE; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SQUIDS; THERMAL NOISE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SELF FIELD TRAPPING; DOUBLE JUNCTION
510       SQUID; BULK SUPERCONDUCTOR; DC SQUID; HYSTERESIS; MULTIPLE FLUX
510       PERIODICITIES; VOLTAGE MODULATION; GRANULAR JUNCTIONS; THERMAL NOISE;
510       Y-BA-CU-O.
550       Y-BA-CU-O/INT BA/INT CU/INT O/INT Y/INT BA/EL CU/EL O/EL Y/EL.

DOCUMENT=            1698
 AUTH     = HUANG
 DT       = 02
 KN       = B40891404476
 LG       = ENGL
 SN       = ISSN 0217-9849
 YR       = 89
000       3395705
002       B40891404476
010       JOURNAL PAPER; EXPERIMENTAL.
100       HIGH-FIELD AND MICROSTRUCTURE STUDIES OF SUPERCONDUCTING NYBA/SUB
100       2/CU/SUB 3/O/SUB Y/:AGO COMPOSITES.
200       HUANG, C.Y.; TAI, H.H.; WU, M.K.
220       LOCKHEED MISSILES ? SPACE CO. INC., RES. ? DEV. DIV., PALO ALTO, CA,
220       USA
310       MOD. PHYS. LETT. B (SINGAPORE)
330       20 APRIL 1989. VOL.3, NO.6, P.525-35, REF.19
350       ISSN 0217-9849
400       THE AUTHORS HAVE MEASURED THE RESISTANCE OF SUPERCONDUCTING NYBA/SUB
400       2/CU/SUB 3/O/SUB Y/:AGO (N=2,3,4, AND 5) COMPOSITES ABOVE 77 K FOR
400       MAGNETIC FIELDS UP TO 20 T. THE DATA REVEAL THAT THE RESISTANCE IS
400       ZERO EVEN AT 80 K AND 20 T. THE TEMPERATURE DEPENDENCE OF THE
400       CRITICAL FIELD NEAR T/SUB C/ (91.6 K) IS VERY STRONG, AND CRITICAL
400       FIELDS AT 0 K ARE THUS EXPECTED TO BE VERY HIGH. THE RESULTS OF
400       SCANNING ELECTRON MICROSCOPY AND POLARIZED LIGHT MICROSCOPY HAVE
400       SHOWN THAT THE PRESENCE OF SILVER RESULTS IN THE GROWTH OF VERY LARGE
400       GRAINS ( APPROXIMATELY 0.5 MM) WITH SILVER DISPERSED IN THE GRAINS,
400       GIVING RISE TO STRONG PINNING AND, HENCE, LARGE SUPERCONDUCTING
400       CRITICAL CURRENT DENSITIES.
500       BARIUM COMPOUNDS; COMPOSITE SUPERCONDUCTORS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); CRYSTAL MICROSTRUCTURE; FLUX PINNING; GRAIN
500       GROWTH; HIGH-TEMPERATURE SUPERCONDUCTORS; SCANNING ELECTRON
500       MICROSCOPE EXAMINATION OF MATERIALS; SILVER COMPOUNDS;
500       SUPERCONDUCTING CRITICAL FIELD; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; GRAIN GROWTH; MICROSTRUCTURE;
510       COMPOSITES; RESISTANCE; CRITICAL FIELD; SCANNING ELECTRON MICROSCOPY;
510       POLARIZED LIGHT MICROSCOPY; PINNING; CRITICAL CURRENT DENSITIES;
510       YBA/SUB 2/CU/SUB 3/O/SUB Y/-AGO.
550       YBA2CU3OAGO/SS BA2/SS CU3/SS AG/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1699
 AUTH     = SRIVASTA
 DT       = 06
 KN       = B40891404507
 LG       = ENGL
 SN       = ISSN 0252-1059
 YR       = 89
000       3395736
002       B40891404507
010       CONFERENCE PAPER; THEORETICAL.
100       HIGH TEMPERATURE SUPERCONDUCTIVITY IN THE OXIDIC SYSTEM.
200       SRIVASTAVA, C.M.
220       DEPT. OF PHYS., IIT, BOMBAY, INDIA
300       FOURTH INTERNATIONAL CONFERENCE ON POWDER METALLURGY AND RELATED HIGH
300       TEMPERATURE MATERIALS.
305       BOMBAY, INDIA.  7-10 DEC. 1987.  BOARD OF RES. NUCL. SCI.. BRITISH
305       INDIA STEEL. CSIR. ET AL.
310       KEY ENG. MATER. (SWITZERLAND)
330       1989. VOL.29-31, P.583-92, REF.12
350       ISSN 0252-1059, CODEN KEMAEY
400       THE DEPENDENCE OF CRYSTAL STRUCTURE AND OXYGEN STOICHIOMETRY ON THE
400       CRITICAL TEMPERATURE OF HIGH T/SUB C/ OXIDIC SUPERCONDUCTORS IS
400       DISCUSSED ON THE BASIS OF THE DARWIN INTERACTION AND THE SMALL
400       POLARON TRANSPORT MECHANISM.
500       CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SMALL POLARON CONDUCTION; STOICHIOMETRY;
500       SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; OXIDIC SYSTEM; CRYSTAL STRUCTURE;
510       STOICHIOMETRY; CRITICAL TEMPERATURE; DARWIN INTERACTION; SMALL
510       POLARON TRANSPORT MECHANISM.
550       CU/SS O/SS.

DOCUMENT=            1700
 AUTH     = NOVIKOV
 DT       = 02
 KN       = B40891404530
 LG       = ENGL
 SN       = ISSN 0044-457X
 YR       = 88
000       3395759
002       B40891404530
010       JOURNAL PAPER; THEORETICAL.
100       CALCULATION OF THE ELECTRONIC STRUCTURE AND INTERATOMIC INTERACTIONS
100       IN THE METAL OXIDES LA/SUB 2-X/SR/SUB X/CUO/SUB 4/ AND Y/SUB
100       2-X/SR/SUB X/CUO/SUB 4/.
200       NOVIKOV, D.L.; IVANOVSKII, A.L.; GUBANOV, V.A.
220       INST. OF CHEM., ACAD. OF SCI., SVERDLOVSK, USSR
310       ZH. NEORG. KHIM. (USSR)
330       JULY 1988. VOL.33, NO.7, P.1658-65, REF.5
331       ENGLISH TRANSLATION: RUSS. J. INORG. CHEM. (UK). JULY 1988. VOL.33,
331       NO.7, P.941-6. CODEN RJICAQ. ISSN 0036-0236
350       ISSN 0044-457X, CODEN ZNOKAQ
400       THE NONEMPIRICAL X/SUB ALPHA / DISCRETE VARIATION METHOD HAS BEEN
400       USED TO CALCULATE THE ELECTRONIC STRUCTURE OF CLUSTERS MODELLING
400       PEROVSKITE-LIKE OXIDES M/SUB 2-X/SR/SUB X/CUO/SUB 4-Y/ (WHERE M=LA,
400       Y). THE RESULTS HAVE BEEN COMPARED WITH THE X-RAY ELECTRONIC SPECTRUM
400       OF LA/SUB 1.83/SR/SUB 0.17/CUO/SUB 4-X/. THE DEPENDENCE OF THE
400       CHEMICAL BOND PARAMETERS AND THE CHARGE DISTRIBUTIONS ON THE
400       COMPOSITION OF THE METAL SUB-LATTICE OF THE OXIDES AND THE PRESENCE
400       OF OXYGEN VACANCIES HAS BEEN STUDIED.
500       BONDS (CHEMICAL); ELECTRONIC DENSITY OF STATES; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LANTHANUM COMPOUNDS; STRONTIUM COMPOUNDS; VACANCIES
500       (CRYSTAL); VARIATIONAL TECHNIQUES; XALPHA CALCULATIONS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; PARTIAL DENSITIES OF STATES;
510       ELECTRONIC STRUCTURE; INTERATOMIC INTERACTIONS; X/SUB ALPHA /
510       DISCRETE VARIATION METHOD; CLUSTERS; PEROVSKITE-LIKE OXIDES; X-RAY
510       ELECTRONIC SPECTRUM; LA/SUB 1.83/SR/SUB 0.17/CUO/SUB 4-X/; CHEMICAL
510       BOND PARAMETERS; CHARGE DISTRIBUTIONS; VACANCIES; LA/SUB 2-X/SR/SUB
510       X/CUO/SUB 4/; Y/SUB 2-X/SR/SUB X/CUO/SUB 4/.
550       LASRCUO4/SS CU/SS LA/SS O4/SS SR/SS O/SS; YSRCUO4/SS CU/SS O4/SS
550       SR/SS O/SS Y/SS.

DOCUMENT=            1701
 AUTH     = MITCHELL
 DT       = 02
 KN       = B40891404600
 LG       = ENGL
 SN       = ISSN 0896-1107
 YR       = 88
000       3395829
002       B40891404600
010       JOURNAL PAPER; REVIEW, PRACTICAL.
100       MAGNETOHYDRODYNAMIC SHIP PROPULSION WITH SUPERCONDUCTING MAGNETS.
200       MITCHELL, D.L. / GUBSER, D.U.
220       MITCHELL ASSOCIATES, RESTON, VA, USA
310       J. SUPERCOND. (USA)
330       DEC. 1988. VOL.1, NO.4, P.349-64, REF.7
350       ISSN 0896-1107, CODEN JOUSEH
400       THE FEASIBILITY OF MAGNETOHYDRODYNAMIC (MHD) SHIP PROPULSION USING
400       SUPERCONDUCTING MAGNETS IS REVIEWED IN LIGHT OF RECENT ADVANCES IN
400       HIGH-TEMPERATURE SUPERCONDUCTIVITY. THE SCALING RELATIONS FOR THE
400       ELECTRICAL AND HYDRAULIC EFFICIENCIES OF MHD PUMP-JETS SHOW THAT
400       OVERALL EFFICIENCIES >50% ARE FEASIBLE AT SPEEDS OF 40 KNOTS AND
400       HIGHER PROVIDED THAT MAGNETIC FIELDS >5T CAN BE MAINTAINED OVER
400       VOLUMES OF THE ORDER OF 100 M/SUP 3/. THE DEVELOPMENT OF LARGE-SCALE
400       ELECTRICAL MACHINERY AND MAGNETS USING THE HIGH-TEMPERATURE
400       SUPERCONDUCTORS NOW UNDER DEVELOPMENT COULD MAKE IT PRACTICAL TO
400       CONSTRUCT SUBMERSIBLES FOR HIGH-SPEED AND SILENT OPERATION. LOW-SPEED
400       TANKERS FOR MOVEMENT OF BULK CARGO WOULD BE EFFICIENT WITH EVEN LOWER
400       FIELDS.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETOHYDRODYNAMIC CONVERTORS;
500       SHIPS; SUPERCONDUCTING MAGNETS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ELECTRICAL EFFICIENCY; MHD
510       PROPULSION; MAGNETOHYDRODYNAMIC SHIP PROPULSION; SUPERCONDUCTING
510       MAGNETS; HIGH-TEMPERATURE SUPERCONDUCTIVITY; SCALING RELATIONS;
510       HYDRAULIC EFFICIENCIES; MHD PUMP-JETS; LARGE-SCALE ELECTRICAL
510       MACHINERY; SUBMERSIBLES; HIGH-SPEED; SILENT OPERATION.

DOCUMENT=            1702
 AUTH     = PADAMSEE
 DT       = 02
 KN       = B40891404601
 LG       = ENGL
 SN       = ISSN 0896-1107
 YR       = 88
000       3395830
002       B40891404601
010       JOURNAL PAPER; PRACTICAL.
100       SUPERCONDUCTING STRUCTURES FOR ELECTRON ACCELERATORS.
200       PADAMSEE, H.
220       LAB. OF NUCL. STUDIES, CORNELL UNIV., ITHACA, NY, USA
310       J. SUPERCOND. (USA)
330       DEC. 1988. VOL.1, NO.4, P.377-93, REF.26
350       ISSN 0896-1107, CODEN JOUSEH
400       LARGE-SCALE APPLICATION OF SUPERCONDUCTING RF CAVITIES TO ELECTRON
400       ACCELERATORS IS IN PROGRESS AT MANY LABORATORIES AROUND THE WORLD.
400       THESE ACCELERATORS WILL PROVIDE HIGH-ENERGY BEAMS FOR ELEMENTARY
400       PARTICLE PHYSICS RESEARCH, MEDIUM-ENERGY BEAMS FOR NUCLEAR PHYSICS
400       RESEARCH, AND LOW-ENERGY BEAMS FOR FREE-ELECTRON LASERS. NIOBIUM IS
400       THE SUPERCONDUCTOR OF CHOICE, AND ITS PERFORMANCE IS SUBJECT TO
400       FURTHER ADVANCES, OPENING NEW APPLICATIONS FOR THE NEXT GENERATION OF
400       ACCELERATORS. EXTENSIVE RF CHARACTERIZATION OF HIGH-T/SUB C/
400       SUPERCONDUCTORS (HTSC) IS ALREADY UNDER WAY. FROM THE RESULTS SO FAR,
400       IT IS CLEAR THAT SUBSTANTIAL IMPROVEMENTS IN THE RF PROPERTIES WILL
400       BE NEEDED BEFORE HTSC CAN COMPETE WITH NB OR EVEN WITH COPPER AT ROOM
400       TEMPERATURE. NEW MEASUREMENTS ON CRYSTALLINE YBACUO SUGGEST THAT
400       THESE DIFFICULTIES ARE NOT INTRINSIC, PROVIDING A STRONG INCENTIVE
400       FOR CONTINUED EFFORTS TO IMPROVE MATERIAL PREPARATION.
500       ELECTRON ACCELERATORS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SUPERCONDUCTING MAGNETS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ELECTRON ACCELERATORS;
510       SUPERCONDUCTING RF CAVITIES; HIGH-ENERGY BEAMS; MEDIUM-ENERGY BEAMS;
510       LOW-ENERGY BEAMS; HIGH-T/SUB C/ SUPERCONDUCTORS; RF PROPERTIES;
510       MATERIAL PREPARATION; CRYSTALLINE YBACUO.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1703
 AUTH     = PARIKH
 DT       = 02
 KN       = B40891404602
 LG       = ENGL
 SN       = ISSN 0896-1107
 YR       = 88
000       3395831
002       B40891404602
010       JOURNAL PAPER; REVIEW, PRACTICAL.
100       APPLICATIONS OF HIGH-TEMPERATURE SUPERCONDUCTORS TO THE POWER SECTOR
100       IN DEVELOPING COUNTRIES.
200       PARIKH, J.K. / PAI, M.G.
220       INDIRA GANDHI INST. OF DEV. RES., BOMBAY, INDIA
310       J. SUPERCOND. (USA)
330       DEC. 1988. VOL.1, NO.4, P.395-406, REF.13
350       ISSN 0896-1107, CODEN JOUSEH
400       DEVELOPING COUNTRIES IMPORTED POWER EQUIPMENT WORTH US$25 BILLION IN
400       1986, AND THEIR POWER REQUIREMENTS ARE EXPECTED TO RISE WELL IN THE
400       21ST CENTURY. THEREFORE, A GLOBAL VIEW NEEDS TO BE TAKEN WHILE
400       ACCORDING PRIORITIES FOR SUPERCONDUCTIVITY RESEARCH TO THE POWER
400       SECTOR. THE SCALE OF THE POWER APPLICATIONS, FEASIBILITY OF WHICH IS
400       EARLIER ESTABLISHED FOR LOW TEMPERATURE SUPERCONDUCTORS, MAY HAVE TO
400       BE REDUCED IF THEY HAVE TO BE RELEVANT FOR THE DEVELOPING COUNTRIES
400       (E.G. SUPERCONDUCTING POWER GENERATORS OF 100-500 MW, STORAGE OF
400       500-2000 MWH, AND TRANSMISSION LINES OF ABOUT 100-400 KVA).
400       FORTUNATELY, DUE TO THE EASIER AVAILABILITY OF COOLANT (LN) AND
400       CERAMICS, THERE COULD BE GREATER EFFORTS IN R?D AND, THEREFORE,
400       FASTER PROGRESS.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING CABLES;
500       SUPERCONDUCTING MACHINES; SUPERCONDUCTING MAGNET ENERGY STORAGE.
510       SUPERCONDUCTING STORAGE; HIGH-TEMPERATURE SUPERCONDUCTORS; DEVELOPING
510       COUNTRIES; POWER EQUIPMENT; POWER APPLICATIONS; SUPERCONDUCTING POWER
510       GENERATORS; TRANSMISSION LINES; 100 TO 500 MW; 500 TO 2000 MWH; 100
510       TO 400 KVA.
560       POWER 1.0 E+08 TO 5.0 E+08 W; ENERGY 1.8 E+12 TO 7.2 E+12 J; APPARENT
560       POWER 1.0 E+05 TO 4.0 E+05 VA.

DOCUMENT=            1704
 AUTH     = TALVACCH
 DT       = 02
 KN       = B40891404603
 LG       = ENGL
 SN       = ISSN 0896-1107
 YR       = 89
000       3395832
002       B40891404603
010       JOURNAL PAPER; BIBLIOGRAPHY.
100       BIBLIOGRAPHY OF HIGH-T/SUB C/ SUPERCONDUCTIVITY.
200       TALVACCHIO, J.
220       WESTINGHOUSE R?D CENTER, PITTSBURGH, PA, USA
310       J. SUPERCOND. (USA)
330       MARCH 1989. VOL.2, NO.1, P.1-209, REF.4610
350       ISSN 0896-1107, CODEN JOUSEH
400       THE BIBLIOGRAPHY'S STRUCTURE IS MODELED AFTER AN ON-LINE SEARCH.
400       RATHER THAN LISTING SEPARATE BIBLIOGRAPHIES FOR EACH OF THE 212
400       KEYWORDS, A SINGLE LIST OF ALL THE REFERENCES IS CONTAINED IN SECTION
400       5, AND INDICES BASED ON THE KEYWORDS AND COMPOUNDS ARE CONTAINED IN
400       SECTIONS 3 AND 4. NO INDICES ARE PROVIDED FOR KEYWORDS WHICH IDENTIFY
400       MORE THAN APPROXIMATELY 150 PAPERS. SUCH 'SECONDARY' KEYWORDS AS BY
400       (FOR YBA/SUB 2/CU/SUB 3/O/SUB 7/) OR OD (FOR OXYGEN DEFICIENCY) CAN
400       STILL BE USED BY SCANNING AN INDEX CORRESPONDING TO A MORE SPECIFIC
400       SEARCH TERM. THE FIRST KEYWORD ASSIGNED TO EACH REFERENCE INDICATES
400       THE MONTH IN WHICH IT WAS LOGGED IN. ALTHOUGH THIS DATE DOES NOT
400       NECESSARILY CORRESPOND TO EITHER THE SUBMISSION OR PUBLICATION DATE,
400       IT PROVIDES SOME GUIDANCE IN SELECTING THE MOST RECENT PAPERS. THE
400       REFERENCE DATABASE IS COMPLETE FOR SOME TOPICS IN THE SENSE THAT NO
400       REFERENCES WERE EXCLUDED FOR BEING OUT-OF-DATE, REPETITIVE, OR-IN
400       SOME CASES-IDENTICAL TO EARLIER PAPERS. THE COMPLETE TOPICS INCLUDE
400       FILMS, WIRES, APPLICATIONS, ETC. ALTHOUGH MATERIALS PROPERTIES WHICH
400       REFLECT THE FUNDAMENTAL PHYSICS OF SUPERCONDUCTIVITY ARE INCLUDED,
400       THE SET OF PAPERS CONTAINING THEORETICAL SPECULATIONS ABOUT THE
400       MECHANISM OF SUPERCONDUCTIVITY IS THE MOST INCOMPLETE.
500       HIGH-TEMPERATURE SUPERCONDUCTORS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; BIBLIOGRAPHY; HIGH T/SUB C/
510       DEVICES; APPLICATIONS; HIGH T/SUB C/ FILMS; HIGH T/SUB C/ WIRES.

DOCUMENT=            1705
 AUTH     = NAGAO
 DT       = 02
 KN       = B40891404684
 LG       = ENGL
 SN       = ISSN 0025-5408
 YR       = 89
000       3395913
002       B40891404684
010       JOURNAL PAPER; EXPERIMENTAL.
100       PROPERTIES OF BI/SUB 12/SIO/SUB 20/ SINGLE CRYSTALS CONTAINING FIRST
100       ROW TRANSITION METAL.
200       NAGAO, Y.; MIMURA, Y.
220       MEGURO RES. ? DEV. LABS., KOKUSAI DENSHIN DENWA CO. LTD., TOKYO,
220       JAPAN
310       MATER. RES. BULL. (USA)
330       FEB. 1989. VOL.24, NO.2, P.239-46, REF.26
350       ISSN 0025-5408, CODEN MRBUAC
400       SINGLE CRYSTALS OF BI/SUB 12/SIO/SUB 20/ (BSO) CODOPED WITH GA:V,
400       CR:P, MN:P, FE:P, CO:P, NI:P, OR CU:P WERE PREPARED, AND THEIR
400       TRANSMISSION SPECTRUM, PHOTOCONDUCTIVITY, LINEAR ELECTRO-OPTIC EFFECT
400       AND OPTICAL ACTIVITY WERE STUDIED. DISTINCT ABSORPTION BANDS ARE
400       OBSERVED IN THE VISIBLE AND NEAR-INFRARED TRANSMISSION SPECTRA FOR
400       THE BSO CONTAINING V, CR, MN, CO OR CU AS COMPARED WITH THAT FOR THE
400       PURE AND P-DOPED BSO. FURTHERMORE IT IS FOUND THAT THE TRANSITION
400       METALS INCORPORATED INTO BSO GENERALLY QUENCH THE PHOTOCONDUCTIVITY
400       OF THE HOST CRYSTAL. PARTICULARLY, THOSE OF THE BSO CONTAINING V, CR
400       OR CU ARE QUENCHED SIGNIFICANTLY. IT IS ALSO FOUND THAT THE
400       INCORPORATIONS OF 0.15 MOLE.% V OR ABOUT 0.01 MOLE.% (CR,MN,FE,CO,NI
400       OR CU) DO NOT CAUSE IMPORTANT CHANGES IN THE OPTICAL ACTIVITY OF BSO
400       BUT CAUSE SMALL DECREASES IN THE LINEAR ELECTRO-OPTIC COEFFICIENTS.
500       BISMUTH COMPOUNDS; ELECTRO-OPTICAL EFFECTS; IMPURITIES; INFRARED
500       SPECTRA OF INORGANIC SOLIDS; OPTICAL ROTATION; PHOTOCONDUCTIVITY;
500       VISIBLE SPECTRA OF INORGANIC SOLIDS.
510       VISIBLE TRANSMISSION SPECTRA; PHOTOCONDUCTIVITY; LINEAR ELECTRO-OPTIC
510       EFFECT; OPTICAL ACTIVITY; NEAR-INFRARED TRANSMISSION SPECTRA; BI/SUB
510       12/SIO/SUB 20/:GAV; BI/SUB 12/SIO/SUB 20/:CRP; BI/SUB 12/SIO/SUB
510       20/:MNP; BI/SUB 12/SIO/SUB 20/:FEP; BI/SUB 12/SIO/SUB 20/:COP; BI/SUB
510       12/SIO/SUB 20/:NIP; BI/SUB 12/SIO/SUB 20/:CUP.
550       BI12SIO20:GAV/SS BI12SIO20/SS BI12/SS SIO2/SS O20/SS BI/SS GA/SS
550       SI/SS O/SS V/SS GAV/BIN GA/BIN V/BIN GAV/DOP GA/DOP V/DOP;
550       BI12SIO20:CRP/SS BI12SIO20/SS BI12/SS SIO2/SS O20/SS BI/SS CR/SS
550       SI/SS O/SS P/SS CRP/BIN CR/BIN P/BIN CRP/DOP CR/DOP P/DOP;
550       BI12SIO20:MNP/SS BI12SIO20/SS BI12/SS SIO2/SS O20/SS BI/SS MN/SS
550       SI/SS O/SS P/SS MNP/BIN MN/BIN P/BIN MNP/DOP MN/DOP P/DOP;
550       BI12SIO20:FEP/SS BI12SIO20/SS BI12/SS SIO2/SS O20/SS BI/SS FE/SS
550       SI/SS O/SS P/SS FEP/BIN FE/BIN P/BIN FEP/DOP FE/DOP P/DOP;
550       BI12SIO20:COP/SS BI12SIO20/SS BI12/SS SIO2/SS O20/SS BI/SS CO/SS
550       SI/SS O/SS P/SS COP/BIN CO/BIN P/BIN COP/DOP CO/DOP P/DOP;
550       BI12SIO20:NIP/SS BI12SIO20/SS BI12/SS SIO2/SS O20/SS BI/SS NI/SS
550       SI/SS O/SS P/SS NIP/BIN NI/BIN P/BIN NIP/DOP NI/DOP P/DOP;
550       BI12SIO20:CUP/SS BI12SIO20/SS BI12/SS SIO2/SS O20/SS BI/SS CU/SS
550       SI/SS O/SS P/SS CUP/BIN CU/BIN P/BIN CUP/DOP CU/DOP P/DOP.

DOCUMENT=            1706
 AUTH     = GAZIT
 DT       = 02
 KN       = B40891404686
 LG       = ENGL
 SN       = ISSN 0025-5408
 YR       = 89
000       3395915
002       B40891404686
010       JOURNAL PAPER; EXPERIMENTAL.
100       PREPARATION OF HIGH TEMPERATURE SUPERCONDUCTOR-METAL WIRE COMPOSITES.
200       GAZIT, D.; PESZKIN, P.N.; FEIGELSON, R.S. / SUN, J.; GEBALLE, T.H.
220       CENTER FOR MATER. RES., STANFORD UNIV., CA, USA
310       MATER. RES. BULL. (USA)
330       APRIL 1989. VOL.24, NO.4, P.467-74, REF.2
350       ISSN 0025-5408, CODEN MRBUAC
400       THE FEASIBILITY OF PREPARING HIGH TEMPERATURE SUPERCONDUCTOR-METAL
400       WIRE COMPOSITES BY PULLING METAL WIRES THROUGH MELTS HAVING THE
400       NOMINAL COMPOSITIONS BI/SUB 2/SR/SUB 2/CACU/SUB 2/O/SUB 8/ AND BI/SUB
400       1.8/SR/SUB 1.8/CA/SUB 1.2/C/SUB 2.2/O/SUB 8/ WAS STUDIED. PLATINUM
400       WIRES OF 100 MU M DIAMETER OR PLATINUM-10% RHODIUM WIRES OF 25 MU M
400       DIAMETER WERE USED. DENSE CONTINUOUS CERAMIC COATINGS FORMED ON THE
400       WIRES IN ALL CASES AT PULL RATES OF 5, 10, AND 20 MM/HR. COATINGS ON
400       THE 100 MU M WIRES RANGED BETWEEN 8-10 MU M IN THICKNESS AND WERE
400       SUPERCONDUCTING WITH A T/SUB C/ OF 87 K EXCEPT FOR THE INNER 2 MU M
400       REGION ADJACENT TO THE WIRE. COATINGS ON THE 25 MU M DIAMETER WIRES
400       WERE 2-3 MU M THICK AND WERE NOT SUPERCONDUCTING. PLATINUM
400       CONTAMINATION MAY ACCOUNT FOR THE PRESENCE OF NONSUPERCONDUCTING
400       PHASES.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CERAMICS; COMPOSITE MATERIALS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MATERIALS PREPARATION; PLATINUM;
500       STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; PREPARATION; SUPERCONDUCTOR-METAL
510       WIRE COMPOSITES; PULLING; CERAMIC COATINGS; BI/SUB 2/SR/SUB
510       2/CACU/SUB 2/O/SUB 8/-PT; BI/SUB 1.8/SR/SUB 1.8/CA/SUB 1.2/ CU/SUB
510       2.2/O/SUB 8/-PT.
550       BI2SR2CACU2O8PT/SS BI2/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS O8/SS PT/SS
550       SR/SS O/SS; BI1.8SR1.8CA1.2CU2.2O8PT/SS BI1.8/SS CA1.2/SS CU2.2/SS
550       SR1.8/SS BI/SS CA/SS CU/SS O8/SS PT/SS SR/SS O/SS.

DOCUMENT=            1707
 AUTH     = URLAND
 DT       = 02
 KN       = B40891404687
 LG       = ENGL
 SN       = ISSN 0025-5408
 YR       = 89
000       3395916
002       B40891404687
010       JOURNAL PAPER; EXPERIMENTAL.
100       SUPERCONDUCTIVITY IN THE BI-SR-MG-CU-O SYSTEM.
200       URLAND, W.; TIETZ, F.
220       INST. FUR ANORGANISCHE CHEMIE, HANNOVER UNIV., WEST GERMANY
310       MATER. RES. BULL. (USA)
330       APRIL 1989. VOL.24, NO.4, P.489-92, REF.21
350       ISSN 0025-5408, CODEN MRBUAC
400       A SUPERCONDUCTING TRANSITION WITH AN ONSET TEMPERATURE NEAR 6 K WAS
400       OBSERVED FOR BI/SUB 2.04/SR/SUB 1.76/MG/SUB 0.30/CU/SUB 0.90/O/SUB
400       6.20/ WHICH CRYSTALLIZES IN THE BI/SUB 2/SR/SUB 2/CUO/SUB 6+ DELTA /
400       TYPE STRUCTURE WITH PARTIAL REPLACEMENT OF STRONTIUM BY MAGNESIUM.
500       BISMUTH COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNESIUM COMPOUNDS; STRONTIUM
500       COMPOUNDS; SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING TRANSITION;
510       STRUCTURE; BI/SUB 2.04/SR/SUB 1.76/MG/SUB 0.30/CU/SUB 0.90/O/SUB
510       6.20/.
550       BI2.04SR1.76MG0.30CU0.90O6.20/SS BI2.04/SS CU0.90/SS MG0.30/SS
550       SR1.76/SS O6.20/SS BI/SS CU/SS MG/SS SR/SS O/SS.

DOCUMENT=            1708
 AUTH     = MARTINEZ
 DT       = 02
 KN       = B40891404937
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3396166
002       B40891404937
010       JOURNAL PAPER; EXPERIMENTAL.
100       A STUDY OF GRAIN AND VOID GROWTH IN THE SUPERCONDUCTOR GDBA/SUB
100       2/CU/SUB 3/O/SUB 7-X/.
200       MARTINEZ, L.; VAZQUEZ, L.; ALBARRAN, J.L.; FUENTES, J.; CARRILLO, E.;
200       MENDOZA, A.; OROZCO, E.; PEREZ-RAMIREZ, J.G.; PEREZ, R.; COTA, L.;
200       BOLDU, J.L.; JOSE YACAMAN, M.
220       INST. DE FISICA, UNIV. NACIONAL AUTONOMA DE MEXICO, MORELOS, MEXICO
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A110, P.217-21, REF.24
350       ISSN 0921-5093, CODEN MSAPE3
400       THE EVOLUTION OF THE GRAINS AND VOIDS DURING THE ANNEALING OF
400       GDBA/SUB 2/CU/SUB 3/O/SUB 7-X/ IS STUDIED. GRAIN AND VOID AREA
400       DISTRIBUTIONS WERE OBTAINED FROM FOUR QUANTITATIVE METALLOGRAPHIC
400       DETERMINATIONS MADE PRIOR TO, DURING AND AFTER ANNEALING. THE AVERAGE
400       GRAIN AND VOID DIAMETERS GROW PROPORTIONALLY TO T/SUP 1/2/. THE
400       CRITICAL GRAIN AND VOID DIAMETERS ALSO EVOLVE WITH THE SAME TIME
400       DEPENDENCE. THE GRAIN AND VOID GROWTH RATES ARE OBTAINED AS A
400       FUNCTION OF THE GRAIN AND VOID AREAS RESPECTIVELY. THE VOIDS BEHAVE
400       APPROXIMATELY AS A SECOND PHASE IN THE MATERIAL, EXHIBITING A GROWTH
400       PROCESS SIMILAR TO OSTWALD 'RIPENING'.
500       ANNEALING; BARIUM COMPOUNDS; CERAMICS; GADOLINIUM COMPOUNDS; GRAIN
500       GROWTH; HIGH-TEMPERATURE SUPERCONDUCTORS; VOIDS (SOLID).
510       HIGH TEMPERATURE SUPERCONDUCTOR; GRAIN GROWTH; VOID GROWTH;
510       ANNEALING; METALLOGRAPHIC DETERMINATIONS; GDBA/SUB 2/CU/SUB 3/O/SUB
510       7-X/.
550       GDBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS GD/SS O/SS.

DOCUMENT=            1709
 AUTH     = JEAN
 DT       = 02
 KN       = B40891405015
 LG       = ENGL
 SN       = ISSN 0953-8984
 YR       = 89
000       3396244
002       B40891405015
010       JOURNAL PAPER; EXPERIMENTAL.
100       A COMPARISON OF THE TEMPERATURE DEPENDENCE OF ELECTRON-POSITRON
100       MOMENTUM DENSITY CHARACTERISTICS IN TL/SUB 2.2/CA/SUB 2/BA/SUB
100       2/CU/SUB 3/O/SUB 10.3+ DELTA /, YBA/SUB 2/CU/SUB 3/O/SUB 7/ AND
100       LA/SUB 1.85/SR/SUB 0.15/CUO/SUB 4/.
200       JEAN, Y.C.; NAKANISHI, H. / FLUSS, M.J.; WACHS, A.L.; TURCHI, P.E.A.;
200       HOWELL, R.H.; WANG, Z.Z.; MENG, R.L.; HOR, P.H.; HUANG, Z.J.; CHU,
200       C.W.
220       MISSOURI UNIV., KANSAS CITY, MO, USA
310       J. PHYS., CONDENS. MATTER. (UK)
330       8 MAY 1989. VOL.1, NO.18, P.2989-96, REF.14
350       ISSN 0953-8984, CODEN JCOMEL
400       THE TEMPERATURE DEPENDENCE BETWEEN 2 AND 300 K OF THE
400       POSITRON-ELECTRON ANNIHILATION LIFETIME AND THE ELECTRON MOMENTUM
400       DISTRIBUTION FROM THE DOPPLER-BROADENED ANNIHILATION GAMMA -RAY
400       ENERGY SPECTRUM WERE MEASURED IN THE HIGH-TEMPERATURE SUPERCONDUCTING
400       MATERIAL TL/SUB 2.2/CA/SUB 2/BA/SUB 2/CU/SUB 3/O/SUB 10.3+ DELTA /. A
400       TEMPERATURE DEPENDENCE IS OBSERVED FOR THE POSITRON LIFETIME, BELOW
400       THE CRITICAL TEMPERATURE (124 K), SUGGESTIVE OF A DRAMATIC DECREASE
400       IN THE POSITRON-ELECTRON OVERLAP RESULTING FROM SUPERCONDUCTIVITY.
400       THE MAGNITUDE OF THE OBSERVED CHANGE IN THE POSITRON LIFETIME IS THE
400       LARGEST THAT THE AUTHORS HAVE SEEN FOR ANY HIGH-T/SUB C/ MATERIAL,
400       ALTHOUGH THE TEMPERATURE DEPENDENCE OF THE POSITRON LIFETIME IS
400       SIMILAR TO WHAT THEY RECENTLY REPORTED FOR YBA/SUB 2/CU/SUB 3/O/SUB
400       7/ AND LA/SUB 1.85/SR/SUB 0.15/CUO/SUB 4/. THE TEMPERATURE DEPENDENCE
400       OF THE DEDUCED ELECTRON MOMENTUM DISTRIBUTION INDICATES A COMPLEX BUT
400       SMALL VARIATION IN THE NUMBER OF LOW-MOMENTUM ELECTRONS AVAILABLE TO
400       ANNIHILATE WITH THE DELOCALISED POSITRONS. THIS NEW EXPERIMENTAL
400       RESULT FURTHER CONFIRMS THE AUTHORS EARLIER SUGGESTIONS OF A COMMON
400       PHYSICS INVOLVED IN HIGH-T/SUB C/ SUPERCONDUCTIVITY FOR PEROVSKITE
400       MATERIALS AND PROVIDES EVIDENCE FOR THE FORMATION OF SUPERCONDUCTING
400       ELECTRON STATES WHICH ARE ANTI-CORRELATED WITH THE DELOCALISED
400       POSITRON WAVEFUNCTION FOR ALL CLASSES OF THE NEW HIGH-T/SUB C/
400       MATERIALS.
500       BARIUM COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LANTHANUM COMPOUNDS; POSITRON ANNIHILATION IN
500       LIQUIDS AND SOLIDS; STRONTIUM COMPOUNDS; THALLIUM COMPOUNDS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; TEMPERATURE DEPENDENCE;
510       ELECTRON-POSITRON MOMENTUM DENSITY CHARACTERISTICS; POSITRON-ELECTRON
510       ANNIHILATION LIFETIME; DOPPLER-BROADENED; SUPERCONDUCTING ELECTRON
510       STATES; DELOCALISED POSITRON WAVEFUNCTION; 2 TO 300 K; YBA/SUB
510       2/CU/SUB 3/O/SUB 7/; LA/SUB 1.85/SR/SUB 0.15/CUO/SUB 4/; TL/SUB
510       2.2/CA/SUB 2/BA/SUB 2/CU/SUB 3/O/SUB 10.3+ DELTA /.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS;
550       LA1.85SR0.15CUO4/SS LA1.85/SS SR0.15/SS CU/SS LA/SS O4/SS SR/SS O/SS;
550       TL2.2CA2BA2CU3O/SS TL2.2/SS BA2/SS CA2/SS CU3/SS BA/SS CA/SS CU/SS
550       TL/SS O/SS.
560       TEMPERATURE 2.0 E+00 TO 3.0 E+02 K.

DOCUMENT=            1710
 AUTH     = HANIC
 DT       = 02
 KN       = B40891405050
 LG       = ENGL
 SN       = ISSN 0307-7357
 YR       = 89
000       3396279
002       B40891405050
010       JOURNAL PAPER; EXPERIMENTAL.
100       CHARACTERIZATION OF DOPED AND SUBSTITUTED HIGH-T/SUB C/
100       SUPERCONDUCTORS Y(CE)-BA(SR)-CU-O (1:2:3).
200       HANIC, F. / POLAK, M.; GOMORY, F.; PLESCH, G.; HORVATH, I.; LOBOTKA,
200       P.; GALIKOVA, L.
220       INST. OF INORG. CHEM., SLOVAK ACAD. OF SCI., BRATISLAVA,
220       CZECHOSLOVAKIA
310       BR. CERAM. TRANS. J. (UK)
330       MARCH-APRIL 1989. VOL.88, NO.2, P.35-40, REF.43
350       ISSN 0307-7357
400       CRYSTAL DATA, INTERGRANULAR AND INTRAGRANULAR SHIELDING CURRENT
400       DENSITIES AND CURRENT-VOLTAGE CHARACTERISTICS IN THE EXTERNAL
400       MAGNETIC FIELD, REDOX PROCESSES AND MAGNETIC EXCHANGE INTERACTIONS
400       WERE STUDIED IN YBA/SUB 2/CU/SUB 3/O/SUB 6.5+X/, Y(CE)BA/SUB 2/CU/SUB
400       3/O/SUB 6.5+X/ AND YSRBACU/SUB 3/O/SUB 6.5+X/ SUPERCONDUCTORS. THE
400       PROPERTIES INVESTIGATED DEPENDED ON THE PROCESSING OF THE SAMPLES
400       (SYNTHESIS OF THE PHASES FROM OXIDES BY SOLID STATE REACTION OR BY
400       CITRATE PROCESSING) AND ON THE CHANGES IN THE CHEMICAL COMPOSITION BY
400       DOPING (CE) OR BY SUBSTITUTION (BA-SR). THE PRESENCE OF CERIUM IONS
400       ACCELERATED THE RATE OF OXYGEN INTERCALATION BY HEATING IN AIR IN THE
400       RANGE 430-550 DEGREES C. THE SUBSTITUTION OF SR FOR BA CONTRIBUTED TO
400       AN INCREASE IN THE CRITICAL CURRENT DENSITY. IN GENERAL, THE SAMPLES
400       PRODUCED BY THE CITRATE PROCESS SHOWED LOWER POROSITIES AND HIGHER
400       CURRENT DENSITIES AT COMPARABLE TEMPERATURES THAN THE SAMPLES
400       SYNTHESIZED FROM OXIDES.
500       CERIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       EXCHANGE INTERACTIONS (ELECTRON); HIGH-TEMPERATURE SUPERCONDUCTORS;
500       POROSITY; STRONTIUM COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; DOPED; SUBSTITUTED; SHIELDING
510       CURRENT DENSITIES; CURRENT-VOLTAGE CHARACTERISTICS; REDOX PROCESSES;
510       MAGNETIC EXCHANGE INTERACTIONS; CHEMICAL COMPOSITION; CRITICAL
510       CURRENT DENSITY; POROSITIES; YBA/SUB 2/CU/SUB 3/O/SUB 6.5+X/;
510       YSRBACU/SUB 3/O/SUB 6.5+X/; YCEBA/SUB 2/CU/SUB 3/O/SUB 6.5+X/.
550       YCEBA2CU3O/SS BA2/SS CU3/SS BA/SS CE/SS CU/SS O/SS Y/SS; YBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; YSRBACU3O/SS CU3/SS BA/SS CU/SS
550       SR/SS O/SS Y/SS.

DOCUMENT=            1711
 AUTH     = KARUNARA
 DT       = 02
 KN       = B40891405051
 LG       = ENGL
 SN       = ISSN 0307-7357
 YR       = 89
000       3396280
002       B40891405051
010       JOURNAL PAPER; EXPERIMENTAL.
100       PHASE-TRANSFORMATIONS, REACTIVITY AND MICROSTRUCTURAL REFINEMENT IN A
100       Y-BA-CU-O CERAMIC SUPERCONDUCTOR.
200       KARUNARATNE, B.S.B.; LEWIS, M.H.
220       CENTRE FOR ADV. MATER. TECHNOL., WARWICK UNIV., COVENTRY, UK
310       BR. CERAM. TRANS. J. (UK)
330       MARCH-APRIL 1989. VOL.88, NO.2, P.33-4, REF.3
350       ISSN 0307-7357
400       THE SUPERCONDUCTING CERAMIC BASED ON THE '123' CUPRATE PHASE (Y,
400       BA/SUB 2/CU/SUB 3/O/SUB 7-X/) HAS BEEN PREPARED BY REACTIVE
400       HOT-PRESSING AND OXYGEN ANNEALING AT 950 DEGREES C. DECOMPOSITION OF
400       THIS PHASE IS SHOWN TO BE SENSITIVE TO ATMOSPHERE, SO THAT ARGON OR
400       VACUUM HEAT-TREATMENTS AT 950 DEGREES C RESULT IN A REACTION '123' TO
400       '211'+BACUO/SUB 2/ AND CUO-RICH LIQUID. THE REACTION PRODUCTS ARE
400       EXTREMELY REACTIVE TO MOIST ENVIRONMENTS. REANNEALING IN OXYGEN
400       RESULTS IN RECRYSTALLISATION OF THE SUPERCONDUCTING PHASE, SO THAT
400       THIS TRANSFORMATION IS A POSSIBLE ROUTE TO CONTROL OF MICROSTRUCTURE
400       AND GRAIN-BOUNDARY SEGREGATION.
500       BARIUM COMPOUNDS; CERAMICS; CRYSTAL MICROSTRUCTURE; DECOMPOSITION;
500       HEAT TREATMENT; HIGH-TEMPERATURE SUPERCONDUCTORS; SOLID-STATE PHASE
500       TRANSFORMATIONS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; PHASE TRANSFORMATIONS; REACTIVITY;
510       CERAMIC; REACTIVE HOT-PRESSING; ANNEALING; HEAT-TREATMENTS;
510       RECRYSTALLISATION; MICROSTRUCTURE; GRAIN-BOUNDARY SEGREGATION;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1712
 AUTH     = SUGIYAMA
 DT       = 02
 KN       = B40891405103
 LG       = ENGL
 SN       = ISSN 0021-4434
 YR       = 89
000       3396332
002       B40891405103
010       JOURNAL PAPER; EXPERIMENTAL.
100       STRUCTURAL STUDY OF A YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ SUPERCONDUCTOR BY
100       ANOMALOUS X-RAY SCATTERING.
200       SUGIYAMA, K.; WASEDA, Y.
220       RES. INST. OF MINERAL DRESSING ? METALL., TOHOKU UNIV., SENDAI, JAPAN
310       MATER. TRANS. JIM (JAPAN)
330       APRIL 1989. VOL.30, NO.4, P.235-41, REF.16
350       ISSN 0021-4434, CODEN TJIMAA
400       THE ANOMALOUS X-RAY SCATTERING (AXS) MEASUREMENT AT THE CU-K
400       ABSORPTION EDGE HAS BEEN MADE USING SYNCHROTRON RADIATION FOR
400       CHARACTERIZING THE ATOMIC SCALE STRUCTURE OF A YBA/SUB 2/CU/SUB
400       3/O/SUB 7-X/ SUPERCONDUCTOR. THE MEASURED ENERGY DEPENDENCE ARISING
400       FROM THE ANOMALOUS DISPERSION EFFECT OF COPPER WAS QUITE CONSISTENT
400       WITH THE CHANGES EXPECTED FROM THE CRYSTALLOGRAPHIC STRUCTURE FACTOR
400       BASED ON A MODEL OF THE ORTHORHOMBIC CRYSTAL STRUCTURE IN WHICH AN
400       OXYGEN ATOM AT 1B AND 1E SITES IS PARTIALLY DEFICIENT. THIS RESULT
400       HAS ALSO BEEN CONFIRMED BY THE LOCAL ENVIRONMENT STRUCTURE AROUND
400       COPPER CALCULATED FROM THE PRESENT AXS MEASUREMENT.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; X-RAY SCATTERING; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; PARTIAL O DEFICIENCY; 1B SITES;
510       ANOMALOUS X-RAY SCATTERING; CU-K ABSORPTION EDGE; SYNCHROTRON
510       RADIATION; ATOMIC SCALE STRUCTURE; ENERGY DEPENDENCE; ANOMALOUS
510       DISPERSION EFFECT; CRYSTALLOGRAPHIC STRUCTURE FACTOR; ORTHORHOMBIC
510       CRYSTAL STRUCTURE; 1E SITES; LOCAL ENVIRONMENT STRUCTURE; AXS;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1713
 AUTH     = DOSS
 DT       = 02
 KN       = B40891405105
 LG       = ENGL
 SN       = ISSN 0028-0836
 YR       = 89
000       3396334
002       B40891405105
010       JOURNAL PAPER; PRACTICAL, EXPERIMENTAL.
100       MEASURING THE NEW SUPERCONDUCTORS.
200       DOSS, J.D.
220       LOS ALAMOS NAT. LAB., NM, USA
310       NATURE (UK)
330       30 MARCH 1989. VOL.338, NO.6214, P.441-42, REF.6
350       ISSN 0028-0836, CODEN NATUAS
400       FASTER, MORE STRAIGHTFORWARD METHODS ARE NEEDED FOR TESTING THE NEW
400       HIGH-TEMPERATURE COPPER-OXIDE SUPERCONDUCTORS. A NON-CONTACT
400       EDDY-CURRENT CHARACTERIZATION INSTRUMENT PARTICULARLY SUITABLE FOR
400       SCREENING LARGE NUMBERS OF SAMPLES WILL SOON BE ON THE MARKET.
500       EDDY CURRENT TESTING; HIGH-TEMPERATURE SUPERCONDUCTORS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; NONCONTACT MEASUREMENT;
510       EDDY-CURRENT CHARACTERIZATION INSTRUMENT.
550       CU/SS O/SS.

DOCUMENT=            1714
 AUTH     = KHURANA
 DT       = 02
 KN       = B40891405532
 LG       = ENGL
 SN       = ISSN 0031-9228
 YR       = 89
000       3396761
002       B40891405532
010       JOURNAL PAPER; THEORETICAL.
100       HIGH-TEMPERATURE SUPERCURRENTS MAY NOT BE FOREVER.
200       KHURANA, A.
310       PHYS. TODAY (USA)
330       MARCH 1989. VOL.42, NO.3, P.17-21, REF.12
350       ISSN 0031-9228, CODEN PHTOAD
400       THE AUTHOR CONSIDERS THE FACT THAT TYPE II SUPERCONDUCTORS PLACED IN
400       A MAGNETIC FIELD STRONGER THAN THE LOWER CRITICAL FIELD HAVE NONZERO
400       RESISTIVITIES, AND CURRENT SET UP IN LOOPS OF SUCH SUPERCONDUCTORS DO
400       NOT LAST INDEFINITELY. THESE PHENOMENA ARE ATTRIBUTED TO MOVEMENT OF
400       THE FLUX LATTICE, I.E. FLUX CREEP.
500       FLUX CREEP; HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING
500       CRITICAL FIELD.
510       HIGH TEMPERATURE SUPERCONDUCTORS; TYPE II SUPERCONDUCTORS; LOWER
510       CRITICAL FIELD; RESISTIVITIES; FLUX CREEP.

DOCUMENT=            1715
 AUTH     = BOCQUET
 DT       = 02
 KN       = B40891405652
 LG       = ENGL
 SN       = ISSN 0370-1972
 YR       = 89
000       3396881
002       B40891405652
010       JOURNAL PAPER; EXPERIMENTAL.
100       X-RAY PHOTOELECTRON SPECTRA OF HIGH T/SUB C/ BISMUTH COMPOUNDS.
100       GENERAL TRENDS FOR LAYER STRUCTURES.
200       BOCQUET, A.E.; DOBSON, J.F.; HEALY, P.C.; MYHRA, S. / THOMPSON, J.G.
220       DIV. OF SCI. ? TECHNOL., GRIFFITH UNIV., NATHAN, QLD., AUSTRALIA
310       PHYS. STATUS SOLIDI B (EAST GERMANY)
330       1 APRIL 1989. VOL.152, NO.2, P.519-32, REF.24
350       ISSN 0370-1972, CODEN PSSBBD
400       ANALYSIS BY XPS AND XAES HAS BEEN CARRIED OUT FOR BI/SUB 2/SR/SUB
400       2/CACU/SUB 2/O/SUB 8/ AND BI/SUB 2/SR/SUB 2/CUO/SUB 6/ HTSC
400       COMPOUNDS. SOME PRELIMINARY RESULTS ARE ALSO REPORTED FOR A TL
400       SPECIMEN WITH PREDOMINANT TL/SUB 2/BA/SUB 2/CACU/SUB 2/O/SUB 8/
400       STOICHIOMETRY, AS WELL AS LA/SUB 0.6/SR/SUB 0.4/COO/SUB 3/ WHICH IS A
400       'METALLIC' OXIDE, BUT IS NOT SUPERCONDUCTING ABOVE 4.2 K. ANOMALOUS
400       LOW BINDING ENERGY CONTRIBUTIONS ARE FOUND FOR THE MAIN ALKALINE
400       EARTH ENVELOPES (BA 3D, CA 2P, AND SR 3D) FOR ALL OF THESE COMPOUNDS.
400       LIKEWISE, TWO DISTINCT CONTRIBUTIONS TO THE O 1S ENVELOPE ARE
400       OBSERVED. THE BI AND TL 4F ENVELOPES AND BINDING ENERGIES ARE
400       CONSISTENT WITH THESE SPECIES BEING SUBJECT TO METALLIC SCREENING.
400       POSSIBLE IMPLICATIONS OF THESE OBSERVATIONS FOR THE ELECTRONIC
400       STRUCTURE OF THE LAYERED HTSC OXIDES ARE DISCUSSED IN THE CONTEXT OF
400       A 'SCREENING' AS WELL AS A 'SHAKE-DOWN' MODEL.
500       AUGER EFFECT; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; STRONTIUM COMPOUNDS; X-RAY PHOTOELECTRON SPECTRA.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SHAKE DOWN MODEL; LAYER STRUCTURES;
510       XPS; XAES; BINDING ENERGY; METALLIC SCREENING; ELECTRONIC STRUCTURE;
510       BI/SUB 2/SR/SUB 2/CACU/SUB 2/O/SUB 8/; BI/SUB 2/SR/SUB 2/CUO/SUB 6/;
510       TL/SUB 2/BA/SUB 2/CACU/SUB 2/O/SUB 8/; LA/SUB 0.6/SR/SUB 0.4/COO/SUB
510       3/.
550       BI2SR2CACU2O8/SS BI2/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS O8/SS SR/SS
550       O/SS; BI2SR2CUO6/SS BI2/SS SR2/SS BI/SS CU/SS O6/SS SR/SS O/SS;
550       TL2BA2CACU2O8/SS BA2/SS CU2/SS TL2/SS BA/SS CA/SS CU/SS O8/SS TL/SS
550       O/SS; LA0.6SR0.4COO3/SS LA0.6/SS SR0.4/SS CO/SS LA/SS O3/SS SR/SS
550       O/SS.

DOCUMENT=            1716
 AUTH     = SAIF
 DT       = 02
 KN       = B40891405653
 LG       = ENGL
 SN       = ISSN 0370-1972
 YR       = 89
000       3396882
002       B40891405653
010       JOURNAL PAPER; THEORETICAL.
100       NUCLEATION OF SUPERCONDUCTIVITY IN CERAMIC OXIDES.
200       SAIF, A.G.; CHELA-FLORES, J.
220       INT. CENTRE FOR THEOR. PHYS., TRIESTE, ITALY
310       PHYS. STATUS SOLIDI B (EAST GERMANY)
330       1 APRIL 1989. VOL.152, NO.2, P.617-23, REF.15
350       ISSN 0370-1972, CODEN PSSBBD
400       THE NUCLEATION OF SUPERCONDUCTIVITY IN THE INTERIOR OF A BULK
400       SPECIMEN, AS WELL AS AT THE SURFACE OF CERAMIC SUPERCONDUCTORS IS
400       DISCUSSED ON THE BASE OF PHENOMENOLOGICAL EQUATIONS, IN WHICH
400       SUPERCONDUCTIVITY COEXISTS WITH ANTIFERROMAGNETISM. THE PREDICTION OF
400       THE EVOLUTION OF H/SUB C2/ WITH SMALL VARIATIONS ON THE COUPLING
400       CONSTANT MAY SERVE TO TEST THE UNDERLYING PHENOMENOLOGICAL THEORY.
500       ANTIFERROMAGNETISM; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       SUPERCONDUCTORS; SUPERCONDUCTING CRITICAL FIELD.
510       COEXISTENCE; HIGH TEMPERATURE SUPERCONDUCTORS; UPPER CRITICAL FIELD;
510       CERAMIC OXIDES; NUCLEATION; SUPERCONDUCTIVITY; BULK; SURFACE;
510       PHENOMENOLOGICAL EQUATIONS; ANTIFERROMAGNETISM; COUPLING CONSTANT.
550       O/SS.

DOCUMENT=            1717
 AUTH     = BASZYNSK
 DT       = 02
 KN       = B40891406035
 LG       = ENGL
 SN       = ISSN 0031-8965
 YR       = 89
000       3397264
002       B40891406035
010       JOURNAL PAPER; EXPERIMENTAL.
100       SUPERCONDUCTING YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / TEXTURED FILMS ON
100       MGO SUBSTRATES.
200       BASZYNSKI, J.
220       INST. OF MOLECULAR PHYS., POLISH ACAD. OF SCI., POZNAN, POLAND
310       PHYS. STATUS SOLIDI A (EAST GERMANY)
330       16 MARCH 1989. VOL.112, NO.1, P.K39-41, REF.6
350       ISSN 0031-8965, CODEN PSSABA
400       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / FILM PREPARATION HAS BEEN
400       SUCCESSFULLY CARRIED OUT BY SOLID-STATE REACTION IN A MIXTURE OF
400       Y/SUB 2/O/SUB 3/, BA(NO/SUB 3/)/SUB 2/, AND CUO POWDER, GIVING THE
400       COMPOSITION YBA/SUB 2/CU/SUB 3/O/SUB 7/, ON MGO (100) SUBSTRATES IN
400       OXYGEN GAS FLOW. FROM A TYPICAL X-RAY DIFFRACTION PATTERN OF YBA/SUB
400       2/CU/SUB 3/O/SUB 7- DELTA / FILMS IT WAS NOTED THAT THE FILMS WERE
400       ORIENTED WITH THE C-AXIS PERPENDICULAR TO THE SURFACE.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MATERIALS
500       PREPARATION; POWDER TECHNOLOGY; SUPERCONDUCTING THIN FILMS; TEXTURE;
500       X-RAY DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; POWDER MIXTURES; FILM
510       PREPARATION; SOLID-STATE REACTION; MGO (100); X-RAY DIFFRACTION
510       PATTERN; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / TEXTURED FILMS; MGO
510       SUBSTRATES.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; MGO/SUR MG/SUR O/SUR
550       MGO/BIN MG/BIN O/BIN.

DOCUMENT=            1718
 AUTH     = AL-KHEFF
 DT       = 02
 KN       = B40891406083
 LG       = ENGL
 SN       = ISSN 0141-8637
 YR       = 89
000       3397312
002       B40891406083
010       JOURNAL PAPER; EXPERIMENTAL.
100       ELASTIC BEHAVIOUR UNDER PRESSURE OF HIGH-T/SUB C/ SUPERCONDUCTORS
100       RBA/SUB 2/CU/SUB 3/O/SUB 7-X/ (R=Y, GD AND EU).
200       AL-KHEFFAJI, A. / CANKURTARAN, M.; SAUNDERS, G.A.; ALMOND, D.P.;
200       LAMBSON, E.F.; DRAPER, R.C.J.
220       SCH. OF PHYS., BATH UNIV., UK
310       PHILOS. MAG. B, PHYS. CONDENS. MATTER ELECTRON. OPT. MAGN. PROP. (UK)
330       MAY 1989. VOL.59, NO.5, P.487-97, REF.17
350       ISSN 0141-8637, CODEN PMABDJ
400       THE EFFECTS OF HYDROSTATIC PRESSURE ON THE VELOCITIES OF LONGITUDINAL
400       AND SHEAR ULTRASONIC WAVES HAVE BEEN MEASURED IN YBA/SUB 2/CU/SUB
400       3/O/SUB 7-X/, GDBA/SUB 2/CU/SUB 3/O/SUB 7-X/ AND EUBA/SUB 2/CU/SUB
400       3/O/SUB 7-X/. MEASUREMENTS HAVE BEEN MADE FOR SAMPLES HAVING
400       DIFFERENT POROSITIES TO DETERMINE THE EFFECTS OF POROSITY ON ELASTIC
400       BEHAVIOUR UNDER PRESSURE. RESULTS HAVE BEEN ANALYSED ON THE BASIS OF
400       MULTIPLE SCATTERING THEORY TO PROVIDE THE ELASTIC PROPERTIES OF THE
400       NONPOROUS MATRIX. THE EFFECTS OF HYDROSTATIC PRESSURE ON THE
400       ULTRASONIC WAVE VELOCITIES ARE MARKEDLY NONLINEAR AND HAVE BEEN USED
400       TO OBTAIN COMBINATIONS OF THE EFFECTIVE THIRD- AND FOURTH-ORDER
400       ELASTIC CONSTANTS APPROPRIATE TO A POROUS SMALL-GRAINED CERAMIC
400       MATERIAL TREATED AS AN ISOTROPIC BODY. THE HYDROSTATIC PRESSURE
400       DERIVATIVES ( DELTA C/SUB IJ// DELTA P)/SUB P=0/ OF THE ISOTROPIC
400       ELASTIC CONSTANTS AND THE ACOUSTIC MODE GRUNEISEN PARAMETER IN THE
400       LONG-WAVELENGTH LIMIT ARE VERY LARGE, FEATURES WHICH CAN BE
400       ATTRIBUTED TO THE OPEN STRUCTURE OF THIS DEFECT PEROVSKITE, ALTHOUGH
400       A VALENCE CHANGE OF COPPER COULD IN PART BE RESPONSIBLE.
500       BARIUM COMPOUNDS; CERAMICS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC
500       COMPOUNDS; ELASTIC CONSTANTS; EUROPIUM COMPOUNDS; GADOLINIUM
500       COMPOUNDS; GRUNEISEN COEFFICIENT; HIGH-PRESSURE EFFECTS IN SOLIDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; POROSITY; ULTRASONIC VELOCITY;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; LONGITUDINAL WAVES; SHEAR WAVES;
510       POROSITY; MULTIPLE SCATTERING THEORY; NONPOROUS MATRIX; ULTRASONIC
510       WAVE VELOCITIES; POROUS SMALL-GRAINED CERAMIC MATERIAL; HYDROSTATIC
510       PRESSURE DERIVATIVES; ISOTROPIC ELASTIC CONSTANTS; ACOUSTIC MODE
510       GRUNEISEN PARAMETER; LONG-WAVELENGTH LIMIT; OPEN STRUCTURE; DEFECT
510       PEROVSKITE; VALENCE CHANGE; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/; GDBA/SUB
510       2/CU/SUB 3/O/SUB 7-X/; EUBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; GDBA2CU3O/SS BA2/SS
550       CU3/SS BA/SS CU/SS GD/SS O/SS; EUBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS
550       EU/SS O/SS.

DOCUMENT=            1719
 AUTH     = SHEN
 DT       = 02
 KN       = B40891406123
 LG       = ENGL
 SN       = ISSN 0163-1829
 YR       = 89
000       3397352
002       B40891406123
010       JOURNAL PAPER; EXPERIMENTAL.
100       PRESSURE EFFECT ON SUPERCONDUCTING TRANSITION-TEMPERATURE RELAXATION
100       BEHAVIOR OF THE ZR/SUB 70/CU/SUB 30/ AMORPHOUS ALLOY ON ANNEALING AT
100       ELEVATED PRESSURES.
200       SHEN ZHONGYI; CHEN GUIYU; ZHANG YUN; YIN XIUJUN
220       INST. OF PHYS., CHINESE ACAD. OF SCI., BEIJING, CHINA
310       PHYS. REV. B, CONDENS. MATTER (USA)
330       1 FEB. 1989. VOL.39, NO.4, P.2714-17, REF.14
350       ISSN 0163-1829, CODEN PRBMDO
400       THE SUPERCONDUCTING TRANSITION-TEMPERATURE (T/SUB C/) RELAXATION
400       BEHAVIOR OF ZR/SUB 70/CU/SUB 30/ METGLAS UPON ANNEALING AT PRESSURES
400       UP TO 2.5 GPA IS INVESTIGATED. THE AUTHORS RESULTS SHOW THAT ALTHOUGH
400       COMPRESSION GENERALLY RETARDS THE RELAXATION PROCESS, IT ALSO
400       OPPOSITELY INFLUENCES ATOMIC ACTIVATION PROCESSES IN T/SUB C/
400       RELAXATION AT THE LOWER AND HIGHER SIDES OF AN APPROPRIATE PRESSURE.
400       A HOMOGENIZATION IN AMORPHOUS STRUCTURE INDUCED BY THIS PRESSURE IS
400       SUGGESTED TO BE RESPONSIBLE FOR THE ABOVE BEHAVIOR.
500       ANNEALING; COPPER ALLOYS; HIGH-PRESSURE EFFECTS IN SOLIDS; METALLIC
500       GLASSES; SUPERCONDUCTING MATERIALS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE; ZIRCONIUM ALLOYS.
510       PRESSURE EFFECT; METALLIC GLASS; SUPERCONDUCTING
510       TRANSITION-TEMPERATURE RELAXATION BEHAVIOR; AMORPHOUS ALLOY;
510       ANNEALING; ELEVATED PRESSURES; METGLAS; COMPRESSION; ATOMIC
510       ACTIVATION PROCESSES; HOMOGENIZATION; AMORPHOUS STRUCTURE; 0 TO 2.5
510       GPA; ZR/SUB 70/CU/SUB 30/.
550       ZR70CU30/BIN CU30/BIN ZR70/BIN CU/BIN ZR/BIN.
560       PRESSURE 0.0 E+00 TO 2.5 E+09 PA.

DOCUMENT=            1720
 AUTH     = BROOKES
 DT       = 02
 KN       = B40891406125
 LG       = ENGL
 SN       = ISSN 0163-1829
 YR       = 89
000       3397354
002       B40891406125
010       JOURNAL PAPER; EXPERIMENTAL.
100       UNOCCUPIED ELECTRONIC STRUCTURE OF SINGLE-CRYSTAL LA/SUB 2/CUO/SUB
100       4/.
200       BROOKES, N.B.; VIESCAS, A.J.; JOHNSON, P.D. / REMEIKA, J.P.; COOPER,
200       A.S.; SMITH, N.V.
220       DEPT. OF PHYS., BROOKHAVEN NAT. LAB., UPTON, NY, USA
310       PHYS. REV. B, CONDENS. MATTER (USA)
330       1 FEB. 1989. VOL.39, NO.4, P.2736-9, REF.23
350       ISSN 0163-1829, CODEN PRBMDO
400       SINGLE CRYSTALS OF LANTHANUM CUPRATE HAVE BEEN STUDIED USING
400       K-RESOLVED INVERSE PHOTOEMISSION. THE PREDICTED DISPERSION OF THE
400       CU3D-O2P-DERIVED BAND THROUGH THE FERMI LEVEL IS NOT OBSERVED AND
400       THIS MAY INFLUENCE MODELS FOR HIGH-TEMPERATURE SUPERCONDUCTIVITY
400       BASED ON BAND-STRUCTURE CALCULATIONS. IN ADDITION, RESONANT INVERSE
400       PHOTOEMISSION OF THE LANTHANUM-DERIVED FEATURES IS ALSO OBSERVED AT
400       THE PLASMON FREQUENCIES.
500       BAND STRUCTURE OF CRYSTALLINE SEMICONDUCTORS AND INSULATORS; INVERSE
500       PHOTOEMISSION SPECTROSCOPY; LANTHANUM COMPOUNDS; PLASMONS.
510       UNOCCUPIED ELECTRONIC STRUCTURE; SINGLE-CRYSTAL; K-RESOLVED INVERSE
510       PHOTOEMISSION; DISPERSION; FERMI LEVEL; MODELS; HIGH-TEMPERATURE
510       SUPERCONDUCTIVITY; BAND-STRUCTURE; RESONANT INVERSE PHOTOEMISSION;
510       PLASMON FREQUENCIES; LA/SUB 2/CUO/SUB 4/.
550       LA2CUO4/SS LA2/SS CU/SS LA/SS O4/SS O/SS.

DOCUMENT=            1721
 AUTH     = KEMPA
 DT       = 02
 KN       = B40891406141
 LG       = ENGL
 SN       = ISSN 0163-1829
 YR       = 89
000       3397370
002       B40891406141
010       JOURNAL PAPER; THEORETICAL.
100       CURRENT-DRIVEN PLASMA INSTABILITIES IN SUPERCONDUCTORS.
200       KEMPA, K.; CEN, J.; BAKSHI, P.
220       DEPT. OF PHYS., BOSTON COLL., CHESTNUT HILL, MA, USA
310       PHYS. REV. B, CONDENS. MATTER (USA)
330       1 FEB. 1989. VOL.39, NO.4, P.2852-5, REF.23
350       ISSN 0163-1829, CODEN PRBMDO
400       THE AUTHORS EXAMINE HERE THE POSSIBILITY OF CURRENT-DRIVEN PLASMA
400       INSTABILITIES IN SUPERCONDUCTORS IN TWO TEMPERATURE REGIMES. AT LOW
400       TEMPERATURES (T APPROXIMATELY=0) AN INSTABILITY CAN BE GENERATED IN A
400       LAYERED SYSTEM. NEAR THE CRITICAL TEMPERATURE (T APPROXIMATELY=T/SUB
400       C/) AN INSTABILITY CAN OCCUR IN A SINGLE SUPERCONDUCTOR FOR
400       SUFFICIENTLY LARGE DRIFTS WHICH MIGHT BE ACHIEVABLE IN THE NEW
400       HIGH-T/SUB C/ MATERIALS. THESE INSTABILITIES OFFER POSSIBILITIES FOR
400       NEW RADIATION-SOURCE DEVICE APPLICATIONS.
500       SOLID-STATE PLASMA; SUPERCONDUCTIVITY.
510       CURRENT DRIVEN PLASMA INSTABILITIES; HIGH TEMPERATURE
510       SUPERCONDUCTORS; SUPERCONDUCTORS; LOW TEMPERATURES; LAYERED SYSTEM;
510       CRITICAL TEMPERATURE; HIGH-T/SUB C/ MATERIALS; RADIATION-SOURCE
510       DEVICE APPLICATIONS.

DOCUMENT=            1722
 AUTH     = OLIVEIRA
 DT       = 02
 KN       = B40891406146
 LG       = ENGL
 SN       = ISSN 0163-1829
 YR       = 89
000       3397375
002       B40891406146
010       JOURNAL PAPER; EXPERIMENTAL.
100       MAGNETOSTRICTION OF SINGLE-CRYSTAL LA/SUB 2/CUO/SUB 4/.
200       OLIVEIRA, N.F., JR. / NICHOLLS, J.T.; SHAPIRA, Y.; DRESSELHAUS, G.;
200       DRESSELHAUS, M.S.; PICONE, P.J.; GABBE, D.R.; JENSSEN, H.P.
220       INST. DE FISICA, SAO PAULO UNIV., BRAZIL
310       PHYS. REV. B, CONDENS. MATTER (USA)
330       1 FEB. 1989. VOL.39, NO.4, P.2898-901, REF.16
350       ISSN 0163-1829, CODEN PRBMDO
400       LONGITUDINAL MAGNETOSTRICTION ( DELTA L/L) EXPERIMENTS HAVE BEEN USED
400       TO PROBE THE MAGNETIC PHASE DIAGRAM OF SINGLE CRYSTAL LA/SUB
400       2/CUO/SUB 4/ AT 4.2, 77, 145, AND 191 K. THE GEOMETRY USED IS
400       (L//H//B), WHERE B IS A UNIT VECTOR ALONG THE ORTHORHOMBIC B AXIS,
400       PERPENDICULAR TO THE CUO/SUB 2/ PLANES. THE OBSERVED MAGNETIC
400       TRANSITION IS ASSOCIATED WITH AN INDUCED ALIGNMENT, ALONG THE FIELD
400       DIRECTION, OF THE SMALL OUT-OF-PLANE CANTING OF THE CU/SUP 2+/ SPINS.
400       AT ALL TEMPERATURES, THE TRANSITION IS MARKED BY A SMALL INCREASE IN
400       L, WITH DELTA L/L ABOUT 2 TO 3*10/SUP -8/. A LARGE HYSTERESIS WAS
400       OBSERVED AT 4.2 K, WITH THE TRANSITION FIELD, H/SUB T/, IN THE UP
400       TRACE BEING 60.1 KOE, AND IN THE DOWN TRACE 45.8 KOE. THIS HYSTERESIS
400       STRONGLY DECREASES WITH INCREASING TEMPERATURE. AT 191 K THE JUMP IN
400       L IS STILL QUITE SHARP INDICATING THAT THE TRANSITION IS STILL FIRST
400       ORDER. THE AUTHORS VALUES OF H/SUB T/ ARE IN GOOD AGREEMENT WITH
400       THOSE OBTAINED ON SIMILAR CRYSTALS USING DIFFERENT TECHNIQUES.
500       LANTHANUM COMPOUNDS; MAGNETIC HYSTERESIS; MAGNETIC TRANSITIONS;
500       MAGNETOSTRICTION.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; SINGLE-CRYSTAL; MAGNETOSTRICTION;
510       MAGNETIC PHASE DIAGRAM; CUO/SUB 2/ PLANES; CU/SUP 2+/ SPINS;
510       HYSTERESIS; 4.2 K; 191 K; 77 K; 145 K; LA/SUB 2/CUO/SUB 4/.
550       LA2CUO4/SS LA2/SS CU/SS LA/SS O4/SS O/SS.
560       TEMPERATURE 4.2 E+00 K; TEMPERATURE 1.91 E+02 K; TEMPERATURE 7.7 E+01
560       K; TEMPERATURE 1.45 E+02 K.

DOCUMENT=            1723
 AUTH     = KAMBA
 DT       = 02
 KN       = B40891406516
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3397745
002       B40891406516
010       JOURNAL PAPER; EXPERIMENTAL.
100       INFRARED REFLECTANCE OF ANISOTROPIC (110) YBCO EPITAXIAL FILM.
200       KAMBA, S.; PETZELT, J.; ZELEZNY, V. / PECHEN, E.V.; KRASNOSVOBODTSEV,
200       S.I.; GORSHUNOV, B.P.
220       INST. OF PHYS., CZECHOSLOVAK ACAD. OF SCI., PRAGUE, CZECHOSLOVAKIA
310       SOLID STATE COMMUN. (USA)
330       MAY 1989. VOL.70, NO.5, P.547-51, REF.30
350       ISSN 0038-1098, CODEN SSCOA4
400       THE IR REFLECTANCE OF SEVERAL YBCO SINGLE CRYSTAL FILMS WAS MEASURED
400       WITH A SPECIAL EMPHASIS ON ANISOTROPIC (110) FILMS. WHEREAS FOR THE E
400       PERPENDICULAR TO C POLARIZATION ONLY A SMALL TEMPERATURE DEPENDENCE
400       WAS DETECTED, FOR THE E//C POLARIZATION A MUCH MORE PRONOUNCED
400       TEMPERATURE DEPENDENCE BELOW T/SUB C/ ENABLED THE AUTHORS TO
400       DETERMINE THE SUPERCONDUCTING GAP ENERGY 2 DELTA /SUB C/
400       APPROXIMATELY=3.2 KT/SUB C/. IT IS CONFIRMED THAT IN THE PREVIOUS IR
400       MEASUREMENTS ON POLYCRYSTALLINE SAMPLES THE E//C RESPONSE DOMINATED
400       BOTH IN THE PHONON PEAK STRUCTURE AS WELL AS IN TEMPERATURE
400       DEPENDENCES OF THE REFLECTIVITY.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; INFRARED SPECTRA
500       OF INORGANIC SOLIDS; LATTICE PHONONS; REFLECTIVITY; SUPERCONDUCTING
500       ENERGY GAP; SUPERCONDUCTING EPITAXIAL LAYERS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; EPITAXIAL FILM; IR REFLECTANCE;
510       SINGLE CRYSTAL; ANISOTROPIC (110) FILMS; TEMPERATURE DEPENDENCE;
510       SUPERCONDUCTING GAP ENERGY; PHONON PEAK STRUCTURE; YBA/SUB 2/CU/SUB
510       3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1724
 AUTH     = SHOUSHEN
 DT       = 02
 KN       = B40891406517
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3397746
002       B40891406517
010       JOURNAL PAPER; EXPERIMENTAL.
100       DETERMINATION OF FLUX PINNING POTENTIALS FROM FIELD-INDUCED
100       ANISOTROPY IN OXIDE SUPERCONDUCTORS.
200       SHOUSHENG YAN; SUICHEN LIANG; HONG MA; QINGRONG FENG; YUNXI SUN; YI
200       GAO
220       DEPT. OF PHYS., PEKING UNIV., CHINA
310       SOLID STATE COMMUN. (USA)
330       MAY 1989. VOL.70, NO.5, P.553-6, REF.7
350       ISSN 0038-1098, CODEN SSCOA4
400       THE ANGULAR DEPENDENCE OF MAGNETIZATION OF YBA/SUB 2/CU/SUB 3/O/SUB
400       7/ AND YBA/SUB 2/CU/SUB 2.85/AG/SUB 0.15/O/SUB 7/ WAS MEASURED AT 77
400       K BY ROTATING THE SAMPLE WITH RESPECT TO THE COOLING FIELD. THE
400       DISTRIBUTION OF THE DEPTH OF PINNING POTENTIAL WELLS FOR FLUX LINES
400       CAN BE DETERMINED. IT IS UNSYMMETRICAL AND CAN BE WELL DESCRIBED BY
400       THE RAYLEIGH DISTRIBUTION. THE AVERAGE DEPTH FOR A SINGLE PINNING
400       POTENTIAL WELL IS ABOUT 0.2 EV FOR YBA/SUB 2/CU/SUB 3/O/SUB 7/ AT 77
400       K.
500       BARIUM COMPOUNDS; FLUX PINNING; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MAGNETISATION; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; FLUX PINNING POTENTIALS;
510       FIELD-INDUCED ANISOTROPY; OXIDE SUPERCONDUCTORS; ANGULAR DEPENDENCE;
510       MAGNETIZATION; PINNING POTENTIAL WELLS; RAYLEIGH DISTRIBUTION; 77 K;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7/; YBA/SUB 2/CU/SUB 2.85/AG/SUB 0.15/O/SUB
510       7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS;
550       YBA2CU2.85AG0.15O7/SS AG0.15/SS CU2.85/SS BA2/SS AG/SS BA/SS CU/SS
550       O7/SS O/SS Y/SS.
560       TEMPERATURE 7.7 E+01 K.

DOCUMENT=            1725
 AUTH     = CRAWFORD
 DT       = 02
 KN       = B40891406518
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3397747
002       B40891406518
010       JOURNAL PAPER; EXPERIMENTAL.
100       FAR INFRARED SPECTROSCOPY OF SINGLE CRYSTAL YBA/SUB 2/CU/SUB 3/O/SUB
100       6/.
200       CRAWFORD, M.K. / BURNS, G.; HOLTZBERG, F.
220       CENTRAL RES. ? DEV. DEPT., E.I. DU PONT DE NEMOURS ? CO. INC.,
220       WILMINGTON, DE, USA
310       SOLID STATE COMMUN. (USA)
330       MAY 1989. VOL.70, NO.5, P.557-60, REF.13
350       ISSN 0038-1098, CODEN SSCOA4
400       THE AUTHORS REPORT INFRARED (IR) REFLECTIVITY MEASUREMENTS OF SINGLE
400       CRYSTAL YBA/SUB 2/CU/SUB 3/O/SUB 6/, THE SEMICONDUCTING VERSION OF
400       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / (I.E., DELTA =1). THE NEAR NORMAL
400       INCIDENCE AB-PLANE REFLECTIVITY CLEARLY EXHIBITS FIVE OF THE SIX
400       ALLOWED E/SUB U/ MODES. BASED ON NORMAL MODES IN K/SUB 2/NIF/SUB
400       4/-TYPE MATERIALS, THEY OFFER A POSSIBLE EXPLANATION FOR THE
400       UNOBSERVED E/SUB U/ MODE. COMBINING THE SINGLE CRYSTAL DATA WITH
400       THEIR PREVIOUSLY REPORTED DATA ON ISOMORPHICALLY AND ISOTOPICALLY
400       (/SUP 18/O) SUBSTITUTED CERAMIC YBA/SUB 2/CU/SUB 3/O/SUB 6/, THE
400       AUTHORS DETERMINE THE A/SUB 2U/ MODES. THUS. A FAIRLY COMPLETE
400       PICTURE OF THE IR ACTIVE PHONONS IS OBTAINED. THE PHONON ASSIGNMENTS
400       ARE DISCUSSED.
500       BARIUM COMPOUNDS; INFRARED SPECTRA OF INORGANIC SOLIDS; LATTICE
500       PHONONS; REFLECTIVITY; SEMICONDUCTOR MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; FAR IR SPECTROSCOPY; SINGLE CRYSTAL;
510       REFLECTIVITY; SEMICONDUCTING VERSION; NEAR NORMAL INCIDENCE; CERAMIC;
510       PHONON ASSIGNMENTS; YBA/SUB 2/CU/SUB 3/O/SUB 6/.
550       YBA2CU3O6/SS BA2/SS CU3/SS BA/SS CU/SS O6/SS O/SS Y/SS.

DOCUMENT=            1726
 AUTH     = DEGTYARY
 DT       = 02
 KN       = B40891406519
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3397748
002       B40891406519
010       JOURNAL PAPER; EXPERIMENTAL.
100       THE EFFECT OF A MODERATE-TEMPERATURE ANNEALING ON THE STRUCTURE AND
100       TEMPERATURE OF A SUPERCONDUCTIVE CONVERSION OF CERAMICS YBA/SUB
100       2/CU/SUB 3/O/SUB Y/.
200       DEGTYARYOVA, V.F.; ZHARIKOV, O.V.; KREMENSKAYA, I.N.; NEVEDOMSKAYA,
200       M.A.; NIKOLAYEV, R.K.; OSIPIAN, YU.A.; PALNICHENKO, A.V.; SIDOROV,
200       N.S.; SHEHTMAN, V.SH.
220       INST. OF SOLID STATE PHYS., MOSCOW, USSR
310       SOLID STATE COMMUN. (USA)
330       MAY 1989. VOL.70, NO.5, P.561-3, REF.6
350       ISSN 0038-1098, CODEN SSCOA4
400       IT IS KNOWN THAT IN THE COURSE OF ANNEALING IN ATMOSPHERIC AIR THE
400       SUPERCONDUCTIVE COMPOUND YBA/SUB 2/CU/SUB 3/O/SUB Y/ WITH AN
400       ORTHORHOMBIC STRUCTURE UNDERGOES THE FOLLOWING CHANGES: AT T=600-650
400       DEGREES C THE LATTICE PARAMETERS CHANGE, AND AT A HIGHER TEMPERATURE
400       ( APPROXIMATELY 700 DEGREES C) A PHASE TRANSFORMATION OCCURS AND A
400       TETRAGONAL STRUCTURE GETS ESTABLISHED. STRUCTURAL CHANGES WERE
400       STUDIED BOTH IN SITU AT HIGH TEMPERATURES AND BY THE METHOD OF
400       HARDENING. AS A RESULT IT WAS ESTABLISHED THAT STRUCTURAL CHANGES
400       OBSERVED EMANATE FROM A PARTIAL LOSS OF OXYGEN AND LOWERING OF
400       TEMPERATURE CONVERSION INTO A SUPERCONDUCTIVE STATE (T/SUB C/) UP TO
400       A FULL LOSS OF SUPERCONDUCTIVE PROPERTIES IN THE CASE OF A TETRAGONAL
400       PHASE. THE PRESENT PAPER IS MEANT TO STUDY THE RELATIONSHIP BETWEEN
400       THE STRUCTURAL CONVERSION OBSERVED AND T/SUB C/ AND THE OXYGEN
400       CONTENT O/SUB Y/ IN CERAMIC SAMPLES YBA/SUB 2/CU/SUB 3/O/SUB Y/
400       ANNEALED AT VARIOUS OXYGEN PRESSURES. IN THE CONTEXT OF THE ABOVE A
400       SERIES OF ISOCHRONOUS ANNEALINGS AT VARIOUS TEMPERATURES WERE CARRIED
400       OUT IN TWO WAYS: IN A VACUUM (REMOVAL OF OXYGEN, LOSS OF
400       SUPERCONDUCTIVE PROPERTIES); IN OXYGEN (RESTORATION OF
400       SUPERCONDUCTIVE PROPERTIES).
500       ANNEALING; BARIUM COMPOUNDS; CERAMICS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SOLID-STATE PHASE TRANSFORMATIONS; SUPERCONDUCTING
500       TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; TRANSITION TEMPERATURE;
510       MODERATE-TEMPERATURE ANNEALING; STRUCTURE; CERAMICS; ORTHORHOMBIC
510       STRUCTURE; LATTICE PARAMETERS; TETRAGONAL STRUCTURE; HARDENING;
510       TETRAGONAL PHASE; ISOCHRONOUS ANNEALINGS; 600 TO 650 DEGC; 700 DEGC;
510       YBA/SUB 2/CU/SUB 3/O/SUB Y/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 8.73 E+02 TO 9.23 E+02 K; TEMPERATURE 9.73 E+02 K.

DOCUMENT=            1727
 AUTH     = BLUMBERG
 DT       = 02
 KN       = B40891406520
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3397749
002       B40891406520
010       JOURNAL PAPER; THEORETICAL.
100       THE INFLUENCE OF OXYGEN VACANCIES ORDERING ON THE RAMAN SPECTRA OF
100       YBA/SUB 2/CU/SUB 3/O/SUB 6.5/ SUPERCONDUCTOR.
200       BLUMBERG, G.E.; FEFER, E.M.; FIMBERG, T.; JOON, E.; LAHT, A.; STERN,
200       R.; REBANE, L.A.
220       INST. OF CHEM. PHYS. ? BIOPHYS., ACAD. OF SCI., TALLINN, ESTONIAN
220       SSR, USSR
310       SOLID STATE COMMUN. (USA)
330       MAY 1989. VOL.70, NO.6, P.647-9, REF.7
350       ISSN 0038-1098, CODEN SSCOA4
400       HIGH OXYGEN VACANCIES ORDERING WAS ACHIEVED IN THE POLYCRYSTALLINE
400       SUPERCONDUCTOR YBA/SUB 2/CU/SUB 3/O/SUB 6.5/ LEADING TO THE NEW
400       CRYSTALLINE PHASE ORTHO II WITH T/SUB C/=53 K. THE RAMAN SPECTRA OF
400       THE ORTHO II PHASE WERE STUDIED AT 300 K. NEW VIBRATIONAL BANDS AT
400       229, 553, 592 AND 630 CM/SUP -1/ WERE FOUND IN ADDITION TO THE BANDS
400       FOR VACANCY DISORDERED ORTHO PHASE. FOR THE PROPOSED ORTHO II
400       SUPERCELL 2A*B*C THE SYMMETRIC ATOMIC VIBRATIONS WERE CONSIDERED, AND
400       NEW RS ACTIVE MODES COMPARED WITH THE OBSERVED RS BANDS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; LATTICE DYNAMICS;
500       RAMAN SPECTRA OF INORGANIC SOLIDS; VACANCIES (CRYSTAL); YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; VACANCIES; RAMAN SPECTRA;
510       VIBRATIONAL BANDS; ACTIVE MODES; 300 K; YBA/SUB 2/CU/SUB 3/O/SUB
510       6.5/.
550       YBA2CU3O6.5/SS O6.5/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 3.0 E+02 K.

DOCUMENT=            1728
 AUTH     = MULLA
 DT       = 02
 KN       = B40891406521
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3397750
002       B40891406521
010       JOURNAL PAPER; EXPERIMENTAL.
100       INVESTIGATIONS ON THE FORMATION OF NEW STRUCTURAL PHASES THROUGH
100       STOICHIOMETRIC DEVIATIONS ON Y SUBLATTICE IN Y/SUB 1/BA/SUB 2/CU/SUB
100       3/O/SUB 7+OR-/.
200       MULLA, I.S.; SINHA, A.P.B. / CHANDRACHOOD, M.R.; TRIPATHI, C.C.;
200       RAMAKRISHNA, K.; SINGH, A.K.; SRIVASTAVA, O.N.
220       DIV. OF PHYS. ? STRUCTURAL CHEM., NAT. CHEM. LAB., PUNE, INDIA
310       SOLID STATE COMMUN. (USA)
330       MAY 1989. VOL.70, NO.6, P.651-5, REF.6
350       ISSN 0038-1098, CODEN SSCOA4
400       ATTEMPTS HAVE BEEN MADE TO FORM NEW STRUCTURAL PHASES BY INTRODUCING
400       Y DEFICIENCY IN YBA/SUB 2/CU/SUB 3/O/SUB 7+OR-/ STRUCTURE AND TO SEE
400       IF THE VACANCIES CAN BE ORDERED TO GIVE NEW SUPERSTRUCTURES. Y/SUB
400       0.5/BA/SUB 2/CU/SUB 3/O/SUB 7+OR-/ AND Y/SUB .66/BA/SUB 2/CU/SUB
400       3/O/SUB 7+OR-/ HAVE BEEN SUCCESSFULLY PREPARED WITH STRUCTURE
400       ISOMORPHOUS TO 1:2:3. THESE COMPOUNDS ARE SUPERCONDUCTING WITH T/SUB
400       C/ BETWEEN 90-92 K. NO ORDERING IS, HOWEVER, OBSERVED; INSTEAD BA AND
400       CU IONS MOVE AND OCCUPY THE VACANT Y SITES.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SOLID-STATE PHASE TRANSFORMATIONS;
500       STOICHIOMETRY; VACANCIES (CRYSTAL); YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; NEW STRUCTURAL PHASES;
510       STOICHIOMETRIC DEVIATIONS; Y SUBLATTICE; VACANCIES; YBA/SUB 2/CU/SUB
510       3/O/SUB 7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1729
 AUTH     = SEN
 DT       = 02
 KN       = B40891406522
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3397751
002       B40891406522
010       JOURNAL PAPER; EXPERIMENTAL.
100       IMPROVEMENT IN CURRENT DENSITY OF BULK BI-SR-CA-CU-O SUPERCONDUCTORS
100       THROUGH A MODIFIED PREPARATION CONDITION.
200       SEN, A.; DAS SHARMA, A.; MAITI, H.S.
220       ELECTROCERAMICS SECTION, CENTRAL GLASS ? CERAMIC RES. INST.,
220       CALCUTTA, INDIA
310       SOLID STATE COMMUN. (USA)
330       MAY 1989. VOL.70, NO.6, P.657-60, REF.10
350       ISSN 0038-1098, CODEN SSCOA4
400       THE CRITICAL CURRENT DENSITY OF BI-SR-CA-CU-O SUPERCONDUCTORS OF 1112
400       NOMINAL COMPOSITION CAN BE IMPROVED APPRECIABLY BY GIVING THEM A
400       FLASH HEAT TREATMENT AT 1050 DEGREES C FOR 5 MINUTES FOLLOWED BY
400       SINTERING AT 860 DEGREES C FOR 18 HOURS. THE RESULTS OF XRD, TEM,
400       MAGNETIC SUSCEPTIBILITY AND FOUR PROBE ELECTRICAL MEASUREMENTS
400       INDICATE THAT THE GRAIN BOUNDARY WEAK LINKS ARE IMPROVED BY THIS
400       FLASH TREATMENT.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); GRAIN BOUNDARIES; HEAT TREATMENT;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC SUSCEPTIBILITY; MATERIALS
500       PREPARATION; STRONTIUM COMPOUNDS; TRANSMISSION ELECTRON MICROSCOPE
500       EXAMINATION OF MATERIALS; X-RAY DIFFRACTION EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; X-RAY DIFFRACTION; CRITICAL CURRENT
510       DENSITY; FLASH HEAT TREATMENT; SINTERING; TEM; MAGNETIC
510       SUSCEPTIBILITY; GRAIN BOUNDARY WEAK LINKS; BI-SR-CA-CU-O.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1730
 AUTH     = LIANG
 DT       = 02
 KN       = B40891406523
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3397752
002       B40891406523
010       JOURNAL PAPER; EXPERIMENTAL.
100       THE CRYSTAL STRUCTURE AND SUPERCONDUCTIVITY OF NEW SUPERCONDUCTING
100       PHASE TLSR/SUB 2/CA/SUB 0.5/SM/SUB 0.5/CU/SUB 2/O/SUB 6.75/.
200       LIANG, J.K.; ZHANG, Y.L.; RAO, G.H.; CHENG, X.R.; XIE, S.S.; ZHAO,
200       Z.X.
220       INST. OF PHYS., ACAD. SINICA, BEIJING, CHINA
310       SOLID STATE COMMUN. (USA)
330       MAY 1989. VOL.70, NO.6, P.661-5, REF.22
350       ISSN 0038-1098, CODEN SSCOA4
400       THE CRYSTAL STRUCTURE OF SUPERCONDUCTING PHASE TLSR/SUB 2/CA/SUB
400       0.5/SM/SUB 0.5/CU/SUB 2/O/SUB 6.75/ WITH T/SUB C/(0)=37.6 K IN
400       TL-SR-CA-SM-CU-O SYSTEM HAS BEEN DETERMINED BY MEANS OF X-RAY POWDER
400       DIFFRACTION. IT BELONGS TO PRIMARY TETRAGONAL CELL WITH A=3.817,
400       C=12.054 AA. ITS SPACE GROUP IS D/SUB 4H//SUP 1/-P4/MMM. EACH UNIT
400       CELL CONTAINS ONE FORMULA UNIT. THE POSITIONS OF IONS IN UNIT CELL
400       ARE AS FOLLOWING: 0.5 CA AND 0.5 SM CATIONS DISORDERLY OCCUPY 1(D)
400       EQUIVALENT POINT POSITION. THE OCCUPATION FACTOR FOR EACH OF THEM IS
400       0.5. 1 TL CATION OCCUPIES EQUIVALENT POINT POSITION 1(A). 2 CU
400       CATIONS OCCUPY 2(G) WITH Z=0.365. 2 SR CATIONS OCCUPY 2(H) WITH
400       Z=0.210. 7 O ANIONS RESPECTIVELY OCCUPY 1(C), 2(G) (Z=0.165) AND 4(I)
400       (Z=0.365) EQUIVALENT POINT POSITIONS. THE CRYSTAL STRUCTURE OF
400       TLSR/SUB 2/CA/SUB 0.5/SM/SUB 0.5/CU/SUB 2/O/SUB 6.75/ IS VERY SIMILAR
400       TO THAT OF TLBA/SUB 2/CACU/SUB 2/O/SUB 6.5/ IN TL-BA-CA-CU-O SYSTEM
400       OR RBA/SUB 2/CU/SUB 3/O/SUB 7/ IN R-BA-CA-O SYSTEM. IN THE
400       SUPERCONDUCTING PHASE WITH OXYGEN-DEFICIENT PSEUDO-PEROVSKITE
400       STRUCTURE, THE SIMILARITY OF CATION-OXYGEN COORDINATION POLYHEDRON IS
400       IMPORTANT FOR THE SUBSTITUTION AMONG THE CATIONS.
500       CALCIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SAMARIUM COMPOUNDS; STRONTIUM
500       COMPOUNDS; SUPERCONDUCTING TRANSITION TEMPERATURE; THALLIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; CRYSTAL STRUCTURE; X-RAY POWDER
510       DIFFRACTION; TETRAGONAL CELL; SPACE GROUP; TLSR/SUB 2/CA/SUB
510       0.5/SM/SUB 0.5/CU/SUB 2/O/SUB 6.75/.
550       TLSR2CA0.5SM0.5CU2O6.75/SS CA0.5/SS O6.75/SS SM0.5/SS CU2/SS SR2/SS
550       CA/SS CU/SS SM/SS SR/SS TL/SS O/SS.

DOCUMENT=            1731
 AUTH     = LOEGEL
 DT       = 02
 KN       = B40891406524
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3397753
002       B40891406524
010       JOURNAL PAPER; EXPERIMENTAL.
100       SURFACE EFFECTS IN BULK HIGH TEMPERATURE SUPERCONDUCTING CERAMICS.
200       LOEGEL, B.; MEHDAOUI, A.; BOLMONT, D.
220       LAB. DE PHYS. ET DE SPECTROSCOPIE ELECTRON., FAC. DES SCI. ET TECH.,
220       UNIV. DE HAUTE ALSACE, MULHOUSE, FRANCE
310       SOLID STATE COMMUN. (USA)
330       MAY 1989. VOL.70, NO.6, P.667-72, REF.30
350       ISSN 0038-1098, CODEN SSCOA4
400       THE A.C. INITIAL SUSCEPTIBILITY OF BULK SINTERED SAMPLES OF HIGH
400       TEMPERATURE SUPERCONDUCTING YBACUO COMPOUNDS HAS BEEN STUDIED IN
400       DETAIL. BY ANALYZING THE FIELD, TEMPERATURE AND FREQUENCY DEPENDENCES
400       OF BOTH REAL PART (DIAMAGNETIC SHIELDING) AND IMAGINARY PART (POWER
400       LOSSES) THE AUTHORS POINT OUT THE COMPOSITIONAL DIFFERENCES IN OXYGEN
400       CONTENT BETWEEN THE SURFACE AND THE VOLUME OF A BULK SAMPLE. THE
400       RESULTS ARE ALSO CONSISTENT WITH A RATHER LARGE SPREAD OF CRITICAL
400       TEMPERATURES OVER THE VOLUME: THE HIGHEST (T/SUB C/=90 K) AT THE
400       SURFACE AND THE LOWEST (50 K<T/SUB C/<80 K) IN THE INNER PART OF THE
400       VOLUME. RESULTS ON AGED AND RESTORED SAMPLES ARE ALSO CONSISTENT WITH
400       MODIFYING OF OXYGEN GRADIENTS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       SUSCEPTIBILITY; SUPERCONDUCTING TRANSITION TEMPERATURE; SURFACE
500       PHENOMENA; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SURFACE EFFECTS; CERAMICS;
510       SUSCEPTIBILITY; CRITICAL TEMPERATURES; YBACUO.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1732
 AUTH     = WANG
 DT       = 06
 KN       = B40891406525
 LG       = ENGL
 SN       = ISSN 0039-6028
 YR       = 89
000       3397754
002       B40891406525
010       CONFERENCE PAPER; EXPERIMENTAL.
100       XPS OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ AT ROOM TEMPERATURE AND 130 K.
200       WANG WENHAO; TIAN LU; GONG YANDONG; SUN YUZHEN
220       INST. OF METAL RES., ACAD. SINICA, SHENYANG, CHINA
300       12TH INTERNATIONAL SEMINAR ON SURFACE PHYSICS.
305       PIECHOWICE, POLAND.  9-14 MAY 1988.  UNIV. WROCLAW. MINIST. HIGHER
305       EDUC.
310       SURF. SCI. (NETHERLANDS)
330       APRIL 1989. VOL.213, NO.2/3, P.303-8, REF.9
350       ISSN 0039-6028, CODEN SUSCAS
400       XPS SPECTRA OF SUPERCONDUCTING AND NON-SUPERCONDUCTING YBA/SUB
400       2/CU/SUB 3/O/SUB 7-X/ HAVE BEEN MEASURED AT ROOM TEMPERATURE AND 130
400       K. NO EVIDENCE OF CU/SUP 3+/ HAS BEEN FOUND. THE O1S SPECTRUM SHOWS A
400       DOUBLE LINE DUE TO UNEQUIVALENT LATTICE POSITIONS OF OXYGEN ATOMS,
400       AND THE INTENSITY CHANGES OF THE TWO PEAKS ARE ATTRIBUTED TO THE
400       DISPLACEMENT OF ATOMS AS TEMPERATURE DECREASED. THE INTENSITY CHANGES
400       OF Y3D/SUB 3/2/ AND Y3D/SUB 5/2/ REFLECT THE DEPENDENCE OF THE
400       ELECTRONIC STRUCTURE OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ ON TEMPERATURE.
400       BECAUSE OF THE DIFFERENCE IN STRUCTURE, THE DEPENDENCE IS STRONGER IN
400       SUPERCONDUCTING SAMPLES.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; X-RAY
500       PHOTOELECTRON SPECTRA; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; TEMPERATURE DEPENDENCE; XPS; CU/SUP
510       3+/; LATTICE POSITIONS; ELECTRONIC STRUCTURE; 130 K; 293 K; YBA/SUB
510       2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 1.3 E+02 K; TEMPERATURE 2.93 E+02 K.

DOCUMENT=            1733
 AUTH     = KRASIN'K
 DT       = 02
 KN       = B40891406595
 LG       = ENGL
 SN       = ISSN 0367-3294
 YR       = 88
000       3397824
002       B40891406595
010       JOURNAL PAPER; THEORETICAL.
100       STRUCTURE OF THE Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 6.5+Y/ PHASE AND
100       SUPERCONDUCTIVITY.
200       KRASIN'KOVA, M.V.; MOIZHES, B.YA.
220       A.F. IOFFE PHYSICOTECH. INST., ACAD. OF SCI., LENINGRAD, USSR
310       FIZ. TVERD. TELA (USSR)
330       OCT. 1988. VOL.30, NO.10, P.2905-9, REF.17
331       ENGLISH TRANSLATION: SOV. PHYS.-SOLID STATE (USA). OCT. 1988. VOL.30,
331       NO.10, P.1676-8. CODEN SPSSA7. ISSN 0038-5654
350       ISSN 0367-3294, CODEN FTVTAC
400       IN THE Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 6.5+Y/ STRUCTURE, A TRIPLET OF
400       LAYERS /SUP 11/CUO/SUB 2/-Y/SUP 3+/-/SUP 11/CUO/SUB 2/ COUPLED BY
400       STRONG ELECTROSTATIC FORCES IS SEPARATED ON EITHER SIDE FROM THE /SUP
400       1/CU/SUB 0.5+Y/ NONSTOICHIOMETRIC LAYER BY NEURAL BAO LAYERS. THE
400       MINIMUM ELECTROSTATIC ENERGY CORRESPONDS TO AN OXIDATION STATE CU/SUP
400       2.5+/ IN THE TRIPLET, WHICH IS INDEPENDENT OF THE STOICHIOMETRY FOR
400       0<Y<0.5. EQUALITY OF ELECTRON (/SUP 11/CU/SUP 2+/) AND HOLE (/SUP
400       11/CU/SUP 3+/) DENSITIES GIVES THE OPTIMUM CONDITIONS FOR THE NORMAL
400       CONDUCTIVITY AND APPARENTLY ALSO THE SUPERCONDUCTIVITY ALONG THE /SUP
400       11/CUO/SUB 2/ LAYERS. THE LOOSELY BOUND LAYERS OF /SUP 1/CU/SUB
400       0.5+Y/ ALLOW RAPID DIFFUSION OF METAL AND ESPECIALLY OF OXYGEN IN THE
400       SYNTHESIS OF THE COMPOUND FROM THE OXIDES AND IN THE SUBSEQUENT
400       ANNEALING AT A LOWER TEMPERATURE WHICH IS NEEDED TO OXIDIZE SOME OF
400       THE COPPER CU/SUP 3+/ AND TO HOMOGENIZE THE CERAMIC.
500       BARIUM COMPOUNDS; CERAMICS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC
500       COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CRYSTAL STRUCTURE; STRONG
510       ELECTROSTATIC FORCES; NONSTOICHIOMETRIC LAYER; NEURAL BAO LAYERS;
510       OXIDATION STATE; TRIPLET; STOICHIOMETRY; NORMAL CONDUCTIVITY; RAPID
510       DIFFUSION; SYNTHESIS; ANNEALING; CERAMIC; Y/SUB 1/BA/SUB 2/CU/SUB
510       3/O/SUB 6.5+Y/.
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1734
 AUTH     = KAZ'MIN
 DT       = 02
 KN       = B40891406596
 LG       = ENGL
 SN       = ISSN 0367-3294
 YR       = 88
000       3397825
002       B40891406596
010       JOURNAL PAPER; EXPERIMENTAL.
100       THERMO-EMF AND THE ELECTRICAL RESISTIVITY OF YBA/SUB 2/CU/SUB 3/O/SUB
100       7- DELTA / OXIDES.
200       KAZ'MIN, S.A.; KAIDANOV, V.I.; LEISING, G.
220       M.I. KALININ POLYTECH. INST., LENINGRAD, USSR
310       FIZ. TVERD. TELA (USSR)
330       OCT. 1988. VOL.30, NO.10, P.2955-8, REF.6
331       ENGLISH TRANSLATION: SOV. PHYS.-SOLID STATE (USA). OCT. 1988. VOL.30,
331       NO.10, P.1703-5. CODEN SPSSA7. ISSN 0038-5654
350       ISSN 0367-3294, CODEN FTVTAC
400       THE TEMPERATURE DEPENDENCES OF THE RESISTIVITY RHO AND OF THE
400       THERMO-EMF ALPHA OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / CERAMICS WERE
400       STUDIED EXPERIMENTALLY AT TEMPERATURES T=350-20 K. THE RESULTS ARE
400       DISCUSSED USING A BAND STRUCTURE MODEL WHICH ASSUMES THAT THE WIDTH
400       OF THE ALLOWED BAND IS SMALLER THAN OR COMPARABLE WITH K/SUB 0/T. THE
400       OBSERVED BEHAVIOR OF ALPHA AND RHO IN THE NORMAL PHASE CAN BE
400       EXPLAINED QUALITATIVELY USING THIS MODEL. THE OBSERVED FEATURES THAT
400       THE MODEL CAN EXPLAIN ARE: A LINEAR DEPENDENCE RHO (T), A WEAK
400       TEMPERATURE DEPENDENCE (OR COMPLETE INDEPENDENCE OF TEMPERATURE)
400       ALPHA (T) (T>150 K), AND ALSO A DISCONTINUITY OF ALPHA (T) OFTEN
400       OBSERVED DURING THE TRANSITION TO THE SUPERCONDUCTING STATE (AT
400       T=100-120 K). THE LAST EFFECT HAS BEEN ATTRIBUTED TO ELECTRON DRAG BY
400       PHONONS. THE ALLOWED BAND ( DELTA E APPROXIMATELY=0.07-0.08 EV) AND
400       ITS OCCUPANCY, WHICH IS MUCH HIGHER THAN 0.5, CAN BE ESTIMATED FROM A
400       COMPARISON OF THE EXPERIMENTAL RESULTS WITH THE PRESENT THEORY. THE
400       HALL COEFFICIENT IS ALSO BRIEFLY DISCUSSED USING THIS MODEL.
500       BAND STRUCTURE OF CRYSTALLINE SEMICONDUCTORS AND INSULATORS; BARIUM
500       COMPOUNDS; CERAMICS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; ELECTRON-PHONON INTERACTIONS; HALL
500       EFFECT; HIGH-TEMPERATURE SUPERCONDUCTORS; THERMOELECTRIC EFFECTS IN
500       SEMICONDUCTORS AND INSULATORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; THERMO EMF; ELECTRICAL RESISTIVITY;
510       TEMPERATURE DEPENDENCES; CERAMICS; BAND STRUCTURE MODEL; NORMAL
510       PHASE; ELECTRON DRAG; PHONONS; HALL COEFFICIENT; 350 TO 20 K; YBA/SUB
510       2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 2.0 E+01 TO 3.5 E+02 K.

DOCUMENT=            1735
 AUTH     = RUDNITSK
 DT       = 02
 KN       = B40891406597
 LG       = ENGL
 SN       = ISSN 0367-3294
 YR       = 88
000       3397826
002       B40891406597
010       JOURNAL PAPER; EXPERIMENTAL.
100       DILATOMETRY AND THERMOMICROGRAVIMETRY OF THE HIGH-TEMPERATURE
100       SUPERCONDUCTOR YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ DURING HYDROGEN
100       REDUCTION.
200       RUDNITSKII, L.A.; MOSHCHALKOV, V.V.; KAUL, A.R.; GRABOI, I.E.;
200       TRET'YAKOV, YU.D.
220       STATE SCI. RES. ? DESIGN INST. FOR NITROGEN IND. ? PRODUCTS OF ORG.
220       SYNTHESIS, MOSCOW, USSR
310       FIZ. TVERD. TELA (USSR)
330       OCT. 1988. VOL.30, NO.10, P.3132-4, REF.9
331       ENGLISH TRANSLATION: SOV. PHYS.-SOLID STATE (USA). OCT. 1988. VOL.30,
331       NO.10, P.1800-1. CODEN SPSSA7. ISSN 0038-5654
350       ISSN 0367-3294, CODEN FTVTAC
400       THE MECHANISM OF HIGH-TEMPERATURE SUPERCONDUCTIVITY IN CERAMICS OF
400       THE YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ TYPE IS NOT YET CLEAR. HOWEVER,
400       EXPERIMENTS HAVE SHOWN BY NOW THAT THE OXYGEN ATOMS IN THE LATTICE
400       PLAY A SIGNIFICANT ROLE. THERE IS KNOWN TO BE AN INVERSE CORRELATION
400       BETWEEN THE SUPERCONDUCTING TRANSITION TEMPERATURE T/SUB C/ AND THE
400       OXYGEN DEFICIT X. WHEN THE OXYGEN VACANCY CONTENT RISES TO 0.6-0.7,
400       THE SAMPLE CEASES TO BE SUPERCONDUCTING. THE AVAILABLE EXPERIMENTAL
400       RESULTS SUGGEST THE HYPOTHESIS THAT T/SUB C/ IS RAISED BY INCREASING
400       THE CONTENT OF WEAKLY BOUND OXYGEN. IT IS THEREFORE OF CONSIDERABLE
400       INTEREST TO EXAMINE THIS OXYGEN. TO DO SO, THE AUTHORS USED THERMAL
400       DESORPTION IN A STREAM OF HYDROGEN, AND SCANNED THE LATTICE OXYGEN
400       CONTENT WITH VARYING REDUCTION TEMPERATURE. BY MEANS OF HYDROGEN, IT
400       WAS POSSIBLE TO REDUCE CONSIDERABLY THE TEMPERATURE RANGE OVER WHICH
400       OXYGEN WAS REMOVED FROM THE LATTICE, AND TO EVOLVE A LARGE FRACTION
400       OF THE OXYGEN AT UP TO 400-450 DEGREES C. WHEN THE SAMPLES ARE HEATED
400       IN AIR, OXYGEN REMOVAL IS ONLY BEGINNING AT THESE TEMPERATURES.
400       THERMOMICROGRAVIMETRY IN A STREAM OF HYDROGEN WAS COMBINED WITH AN
400       ACCURATE DILATOMETRIC ANALYSIS, WHICH HAS PROVED TO BE AN INFORMATIVE
400       METHOD OF STUDYING HIGH-TEMPERATURE SUPERCONDUCTORS.
500       BARIUM COMPOUNDS; CHEMICAL ANALYSIS; DESORPTION; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; REDUCTION (CHEMICAL); YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; DILATOMETRY; THERMOMICROGRAVIMETRY;
510       REDUCTION; VACANCY CONTENT; THERMAL DESORPTION; YBA/SUB 2/CU/SUB
510       3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1736
 AUTH     = KOPELVIC
 DT       = 02
 KN       = B40891406598
 LG       = ENGL
 SN       = ISSN 0367-3294
 YR       = 88
000       3397827
002       B40891406598
010       JOURNAL PAPER; EXPERIMENTAL.
100       TEMPERATURE DEPENDENCES OF THE ELECTRICAL RESISTANCE OF
100       SUPERCONDUCTING YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / SINGLE CRYSTALS.
200       KOPELVICH, YA.V.; LEMANOV, V.V.; SYRNIKOV, P.P.
220       A.F. IOFFE PHYSICOTECH. INST., ACAD. OF SCI., LENINGRAD, USSR
310       FIZ. TVERD. TELA (USSR)
330       OCT. 1988. VOL.30, NO.10, P.3186-8, REF.11
331       ENGLISH TRANSLATION: SOV. PHYS.-SOLID STATE (USA). OCT. 1988. VOL.30,
331       NO.10, P.1835-6. CODEN SPSSA7. ISSN 0038-5654
350       ISSN 0367-3294, CODEN FTVTAC
400       THE TEMPERATURE DEPENDENCES OF THE ELECTRICAL RESISTIVITY OF YBA/SUB
400       2/CU/SUB 3/O/SUB 7- DELTA / SINGLE CRYSTALS HAVE BEEN REPORTED ON
400       MANY OCCASIONS. ALL THESE INVESTIGATIONS HAVE USUALLY BEEN MADE ON
400       SMALL SINGLE CRYSTALS (WITH TYPICAL DIMENSIONS 0.5*0.5*0.05 MM) USING
400       THE MONTGOMERY METHOD. THE AUTHORS USED THE SAME SAMPLE IN A
400       DETERMINATION OF THE ELECTRICAL RESISTIVITY BY THE MONTGOMERY AND VAN
400       DER PAUW METHODS, AND HAVE STUDIED THE NATURE OF THE TEMPERATURE
400       DEPENDENCE OF THE RESISTIVITY AND IS ANISOTROPY.
500       BARIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; TEMPERATURE DEPENDENCE; VAN DER PAUW
510       METHOD; ELECTRICAL RESISTANCE; SINGLE CRYSTALS; MONTGOMERY METHOD;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1737
 AUTH     = BURENKOV
 DT       = 02
 KN       = B40891406599
 LG       = ENGL
 SN       = ISSN 0367-3294
 YR       = 88
000       3397828
002       B40891406599
010       JOURNAL PAPER; EXPERIMENTAL.
100       TEMPERATURE DEPENDENCES OF THE ABSORPTION OF ULTRASOUND AND OF THE
100       YOUNG MODULUS OF SUPERCONDUCTING METALLIC CERAMIC YBA/SUB 2/CU/SUB
100       3/O/SUB 7-X/.
200       BURENKOV, YU.A.; IVANOV, V.I.; LEBEDEV, A.B.; BASKIN, B.L.;
200       KARDASHEV, B.K.; NIKANOROV, S.P.; STEPANOV, YU.P.; FLEISHER, V.G.;
200       VARYUKHIN, V.N.; DATSKO, O.I.; REZNIKOV, A.V.
220       A.F. IOFFE PHYSICOTECH. INST., ACAD. OF SCI., LENINGRAD, USSR
310       FIZ. TVERD. TELA (USSR)
330       OCT. 1988. VOL.30, NO.10, P.3188-02, REF.11
331       ENGLISH TRANSLATION: SOV. PHYS.-SOLID STATE (USA). OCT. 1988. VOL.30,
331       NO.10, P.1837-9. CODEN SPSSA7. ISSN 0038-5654
350       ISSN 0367-3294, CODEN FTVTAC
400       MUCH INFORMATION IS NOW AVAILABLE ON THE BEHAVIOR OF THE ELASTIC
400       MODULI AND OF THE ABSORPTION OF ULTRASOUND IN SUPERCONDUCTING
400       CERAMICS BELONGING TO THE Y-BA-CU-O SYSTEM. THE AUTHORS INVESTIGATED
400       THE TEMPERATURE DEPENDENCES (IN THE RANGE 6-300 K) OF THE YOUNG
400       MODULUS E AND OF THE LOGARITHMIC DECREMENT DELTA OF VIBRATIONS OF
400       FREQUENCY OF ABOUT 100 KHZ, DETERMINED BY THE RESONANCE METHOD OF A
400       COMPOUND PIEZOELECTRIC VIBRATOR. THIS METHOD HAD ADVANTAGES IN
400       STUDIES OF THE INTERNAL FRICTION IN CERAMICS COMPARED WITH THE HF
400       ECHO PULSE METHODS, SINCE AT HIGH FREQUENCIES (OF THE ORDER OF
400       MEGAHERTZ) AN IMPORTANT CONTRIBUTION TO THE ABSORPTION WAS MADE BY
400       THE SCATTERING OF ULTRASOUND ON INHOMOGENEITIES. THE AUTHORS
400       DETERMINED THE DECREMENT, THE VIBRATION AMPLITUDE, THE RESONANCE
400       FREQUENCY AND THE ELECTRICAL MODULUS OF SAMPLES USING AN AUTOMATED
400       MEASURING SYSTEM BASED ON A MICROCOMPUTER.
500       BARIUM COMPOUNDS; CERAMICS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       INTERNAL FRICTION; ULTRASONIC ABSORPTION; YOUNG'S MODULUS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ULTRASOUND ABSORPTION; TEMPERATURE
510       DEPENDENCE; YOUNG MODULUS; METALLIC CERAMIC; LOGARITHMIC DECREMENT;
510       VIBRATIONS; COMPOUND PIEZOELECTRIC VIBRATOR; INTERNAL FRICTION; 6 TO
510       300 K; 100 KHZ; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 6.0 E+00 TO 3.0 E+02 K; FREQUENCY 1.0 E+05 HZ.

DOCUMENT=            1738
 AUTH     = MESYATS
 DT       = 02
 KN       = B40891406855
 LG       = ENGL
 SN       = ISSN 0320-0108
 YR       = 88
000       3398084
002       B40891406855
010       JOURNAL PAPER; EXPERIMENTAL.
100       INITIATION OF PULSED BREAKDOWN IN VACUUM DIODES WITH ELECTRODES OF
100       HIGH-TEMPERATURE SUPERCONDUCTORS.
200       MESYATS, V.G.; SHKURATOV, S.I.
220       INST. OF ELECTROPHYS., ACAD. OF SCI., SVERDLOVSK, USSR
310       PIS'MA ZH. TEKH. FIZ. (USSR)
330       AUG. 1988. VOL.14, NO.15-16, P.1441-4, REF.2
331       ENGLISH TRANSLATION: SOV. TECH. PHYS. LETT. (USA). AUG. 1989. VOL.14,
331       NO.8, P.627-8. CODEN STPLD2. ISSN 0360-120X
350       ISSN 0320-0108, CODEN PZTFDD
400       THE EXPERIMENTAL RESULTS SHOW THAT THE INITIATION OF THE PULSED
400       VACUUM BREAKDOWN AT HIGH-TC SUPERCONDUCTING ELECTRODES HAS FEATURES
400       WHICH DISTINGUISH THIS CASE FROM THAT WITH ORDINARY METALS. THE
400       FORMATION OF AN INSULATING COATING ON THE SURFACE OF THE CATHODE
400       MEANS THAT HIGH-TEMPERATURE SUPERCONDUCTING CATHODES CAN BE USED IN
400       HIGH-VOLTAGE ELECTROPHYSICAL APPARATUS.
500       CATHODES; DIODES; ELECTRIC BREAKDOWN; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SUPERCONDUCTING DEVICES.
510       CRYOGENICS; PULSED BREAKDOWN; VACUUM DIODES; ELECTRODES;
510       HIGH-TEMPERATURE SUPERCONDUCTORS; PULSED VACUUM BREAKDOWN; INSULATING
510       COATING; SURFACE; CATHODE; HIGH-VOLTAGE ELECTROPHYSICAL APPARATUS.

DOCUMENT=            1739
 AUTH     = PRIKHOD'
 DT       = 02
 KN       = B40891406856
 LG       = ENGL
 SN       = ISSN 0320-0108
 YR       = 88
000       3398085
002       B40891406856
010       JOURNAL PAPER; EXPERIMENTAL.
100       THIRD-HARMONIC GENERATION IN THE MICROWAVE RANGE IN A SUPERCONDUCTING
100       CERAMIC.
200       PRIKHOD'KO, A.V.; KOZYREV, S.V.; MASTEROV, V.F.; KHABAROV, S.E.
220       A.F. IOFFE PHYSICOTECH. INST., ACAD. OF SCI., LENINGRAD, USSR
310       PIS'MA ZH. TEKH. FIZ. (USSR)
330       AUG. 1988. VOL.14, NO.15-16, P.1501-4, REF.9
331       ENGLISH TRANSLATION: SOV. TECH. PHYS. LETT. (USA). AUG. 1989. VOL.14,
331       NO.8, P.653-4. CODEN STPLD2. ISSN 0360-120X
350       ISSN 0320-0108, CODEN PZTFDD
400       THE AUTHORS REPORT SOME NEW RESULTS OF A STUDY OF THIRD-HARMONIC
400       GENERATION IN CERAMIC HIGH-TEMPERATURE SUPERCONDUCTORS. THESE NEW
400       RESULTS INDICATE THAT THE INCIDENT RADIATION MUST EXCEED A THRESHOLD
400       POWER LEVEL FOR THE GENERATION PROCESS TO BEGIN.
500       HARMONIC GENERATION; HIGH-TEMPERATURE SUPERCONDUCTORS.
510       NONLINEARITY; MICROWAVE RANGE; THIRD-HARMONIC GENERATION; CERAMIC
510       HIGH-TEMPERATURE SUPERCONDUCTORS.

DOCUMENT=            1740
 AUTH     = MESYATS
 DT       = 02
 KN       = B40891406857
 LG       = ENGL
 SN       = ISSN 0320-0108
 YR       = 88
000       3398086
002       B40891406857
010       JOURNAL PAPER; EXPERIMENTAL.
100       FIELD ION MICROSCOPY OF SUPERCONDUCTING YBA/SUB 2/CU/SUB 3/O/SUB
100       7-X/.
200       MESYATS, G.A.; SYUTKIN, N.N.; IVCHENKO, V.A.; TALANTSEV, E.F.
220       INST. OF ELECTROPHYS., ACAD. OF SCI., USSR
310       PIS'MA ZH. TEKH. FIZ. (USSR)
330       AUG. 1988. VOL.14, NO.15-16, P.1504-7, REF.2
331       ENGLISH TRANSLATION: SOV. TECH. PHYS. LETT. (USA). AUG. 1989. VOL.14,
331       NO.8, P.655-6. CODEN STPLD2. ISSN 0360-120X
350       ISSN 0320-0108, CODEN PZTFDD
400       FIELD ION MICROSCOPY HAS BEEN USED TO OBTAIN AN IMAGE OF THE SURFACE
400       OF SUPERCONDUCTING YBA/SUB 2/. CU/SUB 3/O/SUB 7-X/ AT AN ATOMIC
400       RESOLUTION. THE MICROSCOPIC PICTURE OF THE CLEAN SURFACE IS PRODUCED
400       PRIMARILY BY YTTRIUM ATOMS.
500       BARIUM COMPOUNDS; FIELD EMISSION ION MICROSCOPY; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SURFACE STRUCTURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; FIELD ION MICROSCOPY; SURFACE;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1741
 AUTH     = KONSIN
 DT       = 02
 KN       = B40891406987
 LG       = ENGL
 SN       = ISSN 0367-1429
 YR       = 89
000       3398216
002       B40891406987
010       JOURNAL PAPER; THEORETICAL.
100       ON THE POSSIBILITY OF THE INTERBAND ELECTRON-PHONON MECHANISM OF
100       HIGH-TEMPERATURE SUPERCONDUCTIVITY.
200       KONSIN, P.; KRISTOFFEL, N.; ORD, T.
310       EESTI NSV TEAD. AKAD., TOIM., FUUS. MAT. (USSR)
330       1989. VOL.38, NO.1, P.19-24, REF.35
350       ISSN 0367-1429, CODEN ETFMB3
400       A POSSIBLE MECHANISM OF HIGH-TEMPERATURE SUPERCONDUCTIVITY BASED ON
400       THE INTERBAND ELECTRON-PHONON INTERACTION OF HOLE CONDUCTIVITY
400       OVERLAPPING BANDS IS PROPOSED.
500       ELECTRON-PHONON INTERACTIONS; HIGH-TEMPERATURE SUPERCONDUCTORS.
510       POSSIBILITY; INTERBAND ELECTRON-PHONON MECHANISM; HIGH-TEMPERATURE
510       SUPERCONDUCTIVITY; HOLE CONDUCTIVITY OVERLAPPING BANDS.

DOCUMENT=            1742
 AUTH     = SHIFFMAN
 DT       = 06
 KN       = B40891407416
 LG       = ENGL
 YR       = 88
000       3398645
002       B40891407416
010       CONFERENCE PAPER; APPLICATIONS, NEW DEVELOPMENT, PRACTICAL,
010       EXPERIMENTAL.
100       RECENT RESULTS OF FEASIBILITY STUDY TO USE THE HIGH T/SUB C/ OXIDE
100       SUPERCONDUCTORS FOR MICROWAVE TUBE MAGNETS.
200       SHIFFMAN, C.A.; SRIDHAR, S. / THOMAS, G.E.
220       DEPT. OF PHYS., NORTHEASTERN UNIV., BOSTON, MA, USA
300       INTERNATIONAL ELECTRON DEVICES MEETING. TECHNICAL DIGEST (IEEE CAT.
300       NO.88CH2528-8).
305       SAN FRANCISCO, CA, USA.  11-14 DEC. 1988.  IEEE.
310       USA
330       NEW YORK, NY, USA: IEEE, 1988. 902P., P.530-3, REF.5
400       THE AUTHORS PRESENT RESULTS OF A STUDY TO DETERMINE THE FEASIBILITY
400       OF USING HIGH-T/SUB C/ (90 K) CERAMIC SUPERCONDUCTORS IN PLACE OF
400       PERMANENT MAGNET AND CONVENTIONAL SOLENOIDS ON MICROWAVE TUBES. IN
400       THE FIRST PHASE OF THIS WORK THEY DEVELOPED A STRATEGY BASED ON
400       PERSISTENT CURRENTS FLOWING IN LEADLESS, JOINTLESS CONFIGURATIONS. IN
400       THE PRESENT PHASE THEY FOCUS ON THE POSSIBILITIES AND LIMITATIONS OF
400       THIS DESIGN CONCEPT ASSOCIATED WITH THE GRANULAR PROPERTIES OF THE
400       OXIDE SUPERCONDUCTORS IN BULK CERAMIC FORM. THEY REPORT MEASUREMENTS
400       OF THE SPATIAL DISTRIBUTIONS OF THE SUPERCURRENT DENSITY, EXCITATION
400       SCHEMES, DECAY MODES, LONG-TERM STABILITIES, AND ENVIRONMENTAL
400       DEGENERATION IN PROTOTYPE RING MAGNETS MADE FROM Y/SUB 1/BA/SUB
400       2/CU/SUB 3/O/SUB 7-X/. THE PROSPECTS FOR PRACTICAL MICROWAVE TUBE
400       APPLICATIONS ARE DISCUSSED IN THE LIGHT OF RF STUDIES OF GRANULAR
400       SUPERCONDUCTIVITY IN THIS COMPOUND AND RECENT ADVANCES IN MATERIAL
400       PREPARATION TECHNIQUES.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MICROWAVE TUBES; SUPERCONDUCTING
500       MAGNETS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; DESIGN LIMITATIONS; SUPERCURRENT
510       DENSITY DISTRIBUTION; FEASIBILITY STUDY; HIGH T/SUB C/ OXIDE
510       SUPERCONDUCTORS; MICROWAVE TUBE MAGNETS; CERAMIC SUPERCONDUCTORS;
510       MICROWAVE TUBES; PERSISTENT CURRENTS; JOINTLESS CONFIGURATIONS;
510       DESIGN CONCEPT; GRANULAR PROPERTIES; BULK CERAMIC FORM; EXCITATION
510       SCHEMES; DECAY MODES; LONG-TERM STABILITIES; ENVIRONMENTAL
510       DEGENERATION; PROTOTYPE RING MAGNETS; PROSPECTS FOR PRACTICAL
510       MICROWAVE TUBE APPLICATIONS; RF STUDIES; GRANULAR SUPERCONDUCTIVITY;
510       MATERIAL PREPARATION TECHNIQUES; 90 K; Y/SUB 1/BA/SUB 2/CU/SUB
510       3/O/SUB 7-X/.
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.
560       TEMPERATURE 9.0 E+01 K.

DOCUMENT=            1743
 AUTH     = NOJIMA
 DT       = 06
 KN       = B40891407503
 LG       = ENGL
 YR       = 88
000       3398732
002       B40891407503
010       CONFERENCE PAPER; NEW DEVELOPMENT, PRACTICAL, EXPERIMENTAL.
100       IMPROVEMENT IN SENSITIVITY OF NOVEL MAGNETIC SENSOR USING Y-BA-CU-O
100       CERAMIC SUPERCONDUCTOR FILM.
200       NOJIMA, H.; KATAOKA, S.; TSUCHIMOTO, S.; NAGATA, M.; KITA, R.;
200       SHINTAKU, H.; OHNO, E.; HASHIZUME, N.
220       SHARP CORP., NARA, JAPAN
300       INTERNATIONAL ELECTRON DEVICES MEETING. TECHNICAL DIGEST (IEEE CAT.
300       NO.88CH2528-8).
305       SAN FRANCISCO, CA, USA.  11-14 DEC. 1988.  IEEE.
310       USA
330       NEW YORK, NY, USA: IEEE, 1988. 902P., P.892-3, REF.2
400       THE AUTHORS REPORT AN IMPROVEMENT IN THE SENSITIVITY OF A MAGNETIC
400       SENSOR MADE OF HIGH-T/SUB C/ CERAMIC SUPERCONDUCTOR. THE SENSITIVITY
400       IS DISCUSSED IN CONNECTION WITH THE NOISE MEASUREMENT OF A FILM
400       ELEMENT. IT IS BELIEVED THAT A HIGH SENSITIVITY COMPARABLE TO THAT OF
400       A HIGH-T/SUB C/ SQUID (SUPERCONDUCTING QUANTUM INTERFERENCE DEVICE)
400       UTILIZING CERAMIC MATERIALS CAN BE OBTAINED WITH THE PRESENT
400       MAGNETORESISTIVE SUPERCONDUCTIVE ELEMENT. THE MAGNETIC FIELD
400       DEPENDENCE OF THE ELECTRIC RESISTANCE OF THE ELEMENT AT 77 K IS
400       SHOWN. THE SENSITIVITY AS A FUNCTION OF THE CURRENT IS COMPARED FOR
400       VARIOUS ELEMENTS. IT IS FOUND THAT THE SENSITIVITY OF THIS ELEMENT IS
400       ABOUT 100000 TIMES HIGHER THAN THAT OF A BULK ELEMENT REPORTED LAST
400       YEAR. THE MAGNETORESISTANCE AT LOW MAGNETIC FIELD IS ATTRIBUTED TO
400       THE WEAK COUPLINGS BETWEEN SUPERCONDUCTIVE GRAINS IN A CERAMIC
400       SEMICONDUCTOR. THUS THE CERAMIC SUPERCONDUCTOR IS CONSIDERED TO BE A
400       MULTICONNECTED JOSEPHSON NETWORK. THE NOISE IS MAINLY DUE TO THE
400       PRESENCE OF TRAPPED MAGNETIC FLUX. THE REDUCTION OF THE NOISE FOR
400       PARALLEL MAGNETIC FIELD IMPLIES THE ELIMINATION OF THE TRAPPED FLUX.
400       NOISE MEASUREMENTS ARE ALSO REPORTED.
500       BARIUM COMPOUNDS; CERAMICS; ELECTRIC SENSING DEVICES; ELECTRON DEVICE
500       NOISE; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC FIELD MEASUREMENT;
500       MAGNETORESISTANCE; SENSITIVITY; SUPERCONDUCTING THIN FILMS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SENSITIVITY IMPROVEMENT; MAGNETIC
510       SENSOR; SUPERCONDUCTOR FILM; MAGNETORESISTIVE SUPERCONDUCTIVE
510       ELEMENT; MAGNETIC FIELD DEPENDENCE; ELECTRIC RESISTANCE; WEAK
510       COUPLINGS; SUPERCONDUCTIVE GRAINS; NOISE; TRAPPED MAGNETIC FLUX; 77
510       K; Y-BA-CU-O CERAMIC.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 7.7 E+01 K.

DOCUMENT=            1744
 AUTH     = FUJIKI
 DT       = 06
 KN       = B40891407828
 LG       = ENGL
 YR       = 88
000       3399057
002       B40891407828
010       CONFERENCE PAPER; THEORETICAL.
100       ABSENCE OF MAGNETIC LONG RANGE ORDER OF S=1/2 XY AND HEISENBERG
100       MAGNETS ON THE TRIANGULAR LATTICE.
200       FUJIKI, S.
220       DEPT. OF PHYS., DALHOUSIE UNIV., HALIFAX, NS, CANADA
300       CAP-NSERC SUMMER INSTITUTE IN THEORETICAL PHYSICS.
305       EDMONTON, ALTA., CANADA.  10-25 JULY 1987.
310       SINGAPORE
320       KHANNA, F.C.; UMEZAWA, H.; KUNSTATTER, G.; LEE, H.C.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. 2 VOL. (X+462+X+446)P., P.201-3
330       VOL.1, REF.4
400       ABSENCE OF MAGNETIC LONG RANGE ORDER IN THE GROUND STATES OF THE
400       S=1/2 XY FERROMAGNET, XY ANTIFERROMAGNET AND HEISENBERG
400       ANTIFERROMAGNET ON THE TRIANGULAR LATTICE IS STRONGLY INDICATED BY
400       EXACT CALCULATIONS ON FINITE LATTICES AND EXTRAPOLATIONS TO INFINITE
400       LATTICES. AN APPLICATION TO THE HIGH TEMPERATURE SUPERCONDUCTIVITY
400       ACCORDING TO ANDERSON'S IDEA (1987) OF RESONATING SINGLET PAIRS IS
400       GIVEN.
500       ANTIFERROMAGNETISM; FERROMAGNETISM; HEISENBERG MODEL;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LATTICE THEORY AND STATISTICS; X-Y
500       MODEL.
510       MAGNETIC LONG RANGE ORDER; GROUND STATES; S=1/2 XY FERROMAGNET; XY
510       ANTIFERROMAGNET; HEISENBERG ANTIFERROMAGNET; TRIANGULAR LATTICE; HIGH
510       TEMPERATURE SUPERCONDUCTIVITY; RESONATING SINGLET PAIRS.

DOCUMENT=            1745
 AUTH     = OATES
 DT       = 06
 KN       = B40891408055
 LG       = ENGL
 YR       = 88
000       3399284
002       B40891408055
010       CONFERENCE PAPER; APPLICATIONS, PRACTICAL.
100       SUPERCONDUCTING RESONATORS AND HIGH T/SUB C/ MATERIALS.
200       OATES, D.E.; ANDERSON, A.C.; STEINBECK, J.
220       LINCOLN LAB., MIT, LEXINGTON, MA, USA
300       PROCEEDINGS OF THE 42ND ANNUAL FREQUENCY CONTROL SYMPOSIUM 1988 (IEEE
300       CAT. NO.88CH2588-2).
305       BALTIMORE, MD, USA.  1-3 JUNE 1988.  IEEE. U.S. ARMY ELECTRON.
305       TECHNOL. ? DEVICES LAB.
310       USA
330       NEW YORK, NY, USA: IEEE, 1988. 2 VOL. (VIII+562+102)P., P.545-9,
330       REF.15
400       THE APPLICATION OF THE NEW METAL-OXIDE HIGH-TRANSITION-TEMPERATURE
400       SUPERCONDUCTING MATERIALS TO LOW-NOISE OSCILLATORS OPERATING BETWEEN
400       1 AND 10 GHZ IS DISCUSSED. STRIPLINE RESONATOR STRUCTURES ARE
400       ANALYZED, AND VALUES OF Q AND OSCILLATOR POWER ARE CALCULATED. THESE
400       PARAMETERS ARE USED TO CALCULATE THE EXPECTED VALUES OF PHASE NOISE,
400       WHICH ARE BETTER THAN THOSE OF OTHER TECHNOLOGIES. MEASUREMENTS OF
400       RESIDUAL NOISE IN NIOBIUM RESONATORS HAVE BEEN MADE TO IDENTIFY
400       POSSIBLE SOURCES OF FLICKER NOISE. THE RESULTS SHOW THAT GOOD
400       PERFORMANCE CAN BE OBTAINED USING NIOBIUM.
500       ELECTRIC NOISE MEASUREMENT; ELECTRON DEVICE NOISE; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MICROWAVE OSCILLATORS; RANDOM NOISE; RESONATORS;
500       STRIP LINE COMPONENTS; SUPERCONDUCTING DEVICES.
510       MICROWAVE OSCILLATOR; ELECTRIC NOISE MEASUREMENT; STRIP LINE
510       COMPONENTS; Q-FACTOR; HIGH-TRANSITION-TEMPERATURE SUPERCONDUCTING
510       MATERIALS; LOW-NOISE OSCILLATORS; RESONATOR STRUCTURES; OSCILLATOR
510       POWER; PHASE NOISE; RESIDUAL NOISE; FLICKER NOISE; 1 TO 10 GHZ; NB.
550       NB/EL.
560       FREQUENCY 1.0 E+09 TO 1.0 E+10 HZ.

DOCUMENT=            1746
 AUTH     = CARR
 DT       = 06
 KN       = B40891408056
 LG       = ENGL
 YR       = 88
000       3399285
002       B40891408056
010       CONFERENCE PAPER; EXPERIMENTAL.
100       HIGH TEMPERATURE SUPERCONDUCTORS AND THEIR PROMISE FOR BETTER
100       MICROWAVE CIRCUITS.
200       CARR, P.H.; DEROV, J.S.
220       ROME AIR DEV. CENTER, HANSCOM AIR FORCE BASE, MA, USA
300       PROCEEDINGS OF THE 42ND ANNUAL FREQUENCY CONTROL SYMPOSIUM 1988 (IEEE
300       CAT. NO.88CH2588-2).
305       BALTIMORE, MD, USA.  1-3 JUNE 1988.  IEEE. U.S. ARMY ELECTRON.
305       TECHNOL. ? DEVICES LAB.
310       USA
330       NEW YORK, NY, USA: IEEE, 1988. 2 VOL. (VIII+562+102)P., P.550-5,
330       REF.13
400       THE MICROWAVE RESISTANCE OF SUPERCONDUCTORS AND THE STATUS OF
400       HIGH-TEMPERATURE-SUPERCONDUCTOR MATERIALS TECHNOLOGY IN ACHIEVING LOW
400       RESISTANCES IS DISCUSSED. THE RESISTANCE R OF SUPERCONDUCTORS AT
400       MICROWAVE FREQUENCIES IS EQUAL TO R=R(T)+R(RES), WHERE R (RES) IS A
400       RESIDUAL RESISTANCE DUE TO SUCH MECHANISMS AS IMPURITY SCATTERING AND
400       R(T) IS DUE TO THE THERMAL EXCITATION OF NORMAL (AS OPPOSED TO
400       PAIRED) ELECTRONS. INITIAL MICROWAVE MEASUREMENTS OF CERAMIC YTTRIUM
400       BARIUM COPPER OXIDE YIELDED R(RES) VALUES RANGING FROM 0.1 TO THAT OF
400       COPPER. LOWER RESISTANCE VALUES OBSERVED FOR THIN FILMS AND SINGLE
400       CRYSTALS ARE REPORTED.
500       BARIUM COMPOUNDS; ELECTRIC RESISTANCE; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MICROWAVE DEVICES; MICROWAVE MEASUREMENT; YTTRIUM
500       COMPOUNDS.
510       MICROWAVE CIRCUITS; MICROWAVE RESISTANCE;
510       HIGH-TEMPERATURE-SUPERCONDUCTOR MATERIALS; MICROWAVE FREQUENCIES;
510       RESIDUAL RESISTANCE; IMPURITY SCATTERING; THERMAL EXCITATION;
510       MICROWAVE MEASUREMENTS; THIN FILMS; SINGLE CRYSTALS; YBACUO.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1747
 AUTH     = MCAVOY
 DT       = 06
 KN       = B40891408057
 LG       = ENGL
 YR       = 88
000       3399286
002       B40891408057
010       CONFERENCE PAPER; PRACTICAL, EXPERIMENTAL.
100       EVALUATING SUPERCONDUCTING RESONATOR MATERIALS.
200       MCAVOY, B.R.; ADAM, J.D.; WAGNER, G.R.
220       WESTINGHOUSE R?D CENTER, PITTSBURGH, PA, USA
300       PROCEEDINGS OF THE 42ND ANNUAL FREQUENCY CONTROL SYMPOSIUM 1988 (IEEE
300       CAT. NO.88CH2588-2).
305       BALTIMORE, MD, USA.  1-3 JUNE 1988.  IEEE. U.S. ARMY ELECTRON.
305       TECHNOL. ? DEVICES LAB.
310       USA
330       NEW YORK, NY, USA: IEEE, 1988. 2 VOL. (VIII+562+102)P., P.556-8,
330       REF.4
400       TECHNIQUES FOR MICROWAVE EVALUATION OF SUPERCONDUCTORS USING
400       MICROWAVE STRIPLINE RESONATORS ARE EXAMINED. THESE RESONATORS PROVIDE
400       RAPID MEASUREMENT OF MICROWAVE PARAMETERS WITH MINIMAL CONSTRAINTS ON
400       PROCESSING. SANDWICHED MICROSTRIP LINE RESONATORS ARE USED TO COMPARE
400       THE PERFORMANCE AT 4.2 K OF OXYGEN-FREE COPPER, LEAD FILMS, NIOBIUM
400       FILMS AND CERAMIC HIGH-T/SUB C/ FILMS. MEASUREMENT AT C-BAND (2.8
400       GHZ) AND X-BAND (7.6 GHZ) ARE DESCRIBED. TYPICAL RESULTS FOR A
400       NIOBIUM FILM MICROSTRIP RESONATOR SHOW A LOADED Q VALUE OF ABOUT
400       80000 WITH A TRANSMISSION INSERTION LOSS OF 5 DB AT 3 GHZ. SUCH
400       HIGH-Q MICROWAVE RESONATORS HAVE APPLICATION IN LOW-PHASE-NOISE
400       REFERENCE OSCILLATORS. PRELIMINARY RESULTS ON THE PHASE-NOISE
400       PERFORMANCE OF A NB STRIPLINE RESONATOR AT 2.8 GHZ ARE PRESENTED.
500       MICROWAVE MEASUREMENT; MICROWAVE OSCILLATORS; RESONATORS; STRIP LINE
500       COMPONENTS; SUPERCONDUCTING DEVICES.
510       SUPERCONDUCTING RESONATOR MATERIALS; MICROWAVE STRIPLINE RESONATORS;
510       MEASUREMENT OF MICROWAVE PARAMETERS; CERAMIC HIGH-T/SUB C/ FILMS;
510       C-BAND; X-BAND; LOADED Q VALUE; TRANSMISSION INSERTION LOSS; HIGH-Q
510       MICROWAVE RESONATORS; LOW-PHASE-NOISE REFERENCE OSCILLATORS;
510       PHASE-NOISE; STRIPLINE RESONATOR; 2.8 GHZ; 7.6 GHZ; 4.2 K; NB; CU;
510       PB.
550       CU/EL; PB/EL; NB/EL.
560       FREQUENCY 2.8 E+09 HZ; FREQUENCY 7.6 E+09 HZ; TEMPERATURE 4.2 E+00 K.

DOCUMENT=            1748
 AUTH     = SCHAUER
 DT       = 06
 KN       = B40891408269
 LG       = ENGL
 YR       = 89
000       3399498
002       B40891408269
010       CONFERENCE PAPER; APPLICATIONS, ECONOMIC, REVIEW.
100       ASSESSMENT OF POTENTIAL ADVANTAGES OF HIGH T/SUB C/-SUPERCONDUCTORS
100       FOR TECHNICAL APPLICATION OF SUPERCONDUCTIVITY.
200       SCHAUER, F.; JUNGST, K.P.; KOMAREK, P.; MAURER, W.
220       INST. FUR TECH. PHYS., KERNFORSCHUNGSZENTRUM, KARLSRUHE, WEST GERMANY
300       CAS CERN ACCELERATOR SCHOOL: SUPERCONDUCTIVITY IN PARTICLE
300       ACCELERATORS. PROCEEDINGS (CERN 89-04).
305       HAMBURG, WEST GERMANY.  30 MAY-3 JUNE 1988.  BROWN BOVERI. DORNIER.
310       SWITZERLAND
320       TURNER, S.
330       GENEVA, SWITZERLAND: CERN, 1989. XI+322P., P.299-319, REF.42
400       A FIRST ASSESSMENT OF THE TECHNICAL AND ECONOMICAL CONSEQUENCES OF
400       LIQUID NITROGEN COOLING OF NEW SUPERCONDUCTORS IS GIVEN. FOR THE
400       INVESTIGATION THE APPLICATIONS OF SUPERCONDUCTIVITY ARE CLASSIFIED IN
400       TWO CATEGORIES: FIRST, SYSTEMS WHERE SUPERCONDUCTORS ARE PRACTICALLY
400       INDISPENSABLE FOR ACHIEVING THE SYSTEM'S OBJECTIVES; SECOND,
400       SUPERCONDUCTOR APPLICATIONS IN COMPETITION WITH HIGHLY DEVELOPED
400       CONVENTIONAL TECHNOLOGIES. FURTHER DEVELOPMENT OF THOSE
400       SUPERCONDUCTING SYSTEMS IN THE FIRST CATEGORY FOR WHICH THE COST OF
400       CRYOGENIC EQUIPMENT IS A SMALLER FRACTION OF THE TOTAL SYSTEM COST
400       (E.G. FUSION REACTOR OR MHD GENERATOR) WILL HARDLY BE AFFECTED.
400       HOWEVER, FOR SYSTEMS LIKE PARTICLE ACCELERATORS, RESEARCH MAGNETS,
400       AND NMR SPECTROSCOPY AND IMAGING SYSTEMS, THE CRYOGENIC EQUIPMENT
400       EXPENDITURES ARE SIGNIFICANT AND LN/SUB 2/ COOLING LEADS HERE TO A
400       REDUCTION OF INVESTMENT AND OPERATING COSTS, TO SIMPLIFIED HANDLING
400       AND MAINTENANCE, TO BETTER RELIABILITY AND AVAILABILITY, AND WILL
400       THEREBY IMPROVE THE ACCEPTANCE AND FURTHER SPREAD OF THESE SYSTEMS.
400       IN THE SECOND CATEGORY EACH APPLICATION OF SUPERCONDUCTIVITY HAS TO
400       BE COMPARED WITH ITS CONVENTIONAL COUNTERPART, SEPARATELY. HERE,
400       ELECTRONIC COMPONENTS, POWER SWITCHES, RESISTIVE CURRENT LIMITERS,
400       AND ESPECIALLY THE POWER TRANSMISSION CABLES ARE THOSE APPLICATIONS
400       WHICH LOOK MOST PROMISING. FOR MAGNET APPLICATIONS THE MAIN
400       ADVANTAGEOUS ARGUMENTS ARE LESS THE COST SAVING ASPECT BUT MORE THE
400       HIGHER RELIABILITY, SIMPLICITY, N/SUB 2/-AVAILABILITY, AND EASE OF
400       HANDLING.
500       CRYOGENICS; HIGH-TEMPERATURE SUPERCONDUCTORS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; LIQUID N/SUB 2/ COOLING; ENERGY
510       LOSSES; POTENTIAL ADVANTAGES; HIGH T/SUB C/-SUPERCONDUCTORS;
510       TECHNICAL APPLICATION; SUPERCONDUCTIVITY; ECONOMICAL CONSEQUENCES;
510       CRYOGENIC EQUIPMENT; FUSION REACTOR; MHD GENERATOR; PARTICLE
510       ACCELERATORS; RESEARCH MAGNETS; NMR SPECTROSCOPY; IMAGING SYSTEMS;
510       ELECTRONIC COMPONENTS; POWER SWITCHES; RESISTIVE CURRENT LIMITERS;
510       POWER TRANSMISSION CABLES; MAGNET APPLICATIONS; RELIABILITY.

DOCUMENT=            1749
 AUTH     = KOREN
 DT       = 02
 KN       = B40891500089
 LG       = ENGL
 SN       = ISSN 0003-6951
 YR       = 89
000       3399673
002       B40891500089
010       JOURNAL PAPER; EXPERIMENTAL.
100       ROLE OF ATOMIC OXYGEN IN THE LOW-TEMPERATURE GROWTH OF YBA/SUB
100       2/CU/SUB 3/O/SUB 7- DELTA / THIN FILMS BY LASER ABLATION DEPOSITION.
200       KOREN, G.; GUPTA, A.; BASEMAN, R.J.
220       IBM THOMAS J. WATSON RES. CENTER, YORKTOWN HEIGHTS, NY, USA
310       APPL. PHYS. LETT. (USA)
330       8 MAY 1989. VOL.54, NO.19, P.1920-2, REF.8
350       ISSN 0003-6951, CODEN APPLAB
400       THIN FILMS OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / WERE DEPOSITED ON
400       (100) SRTIO/SUB 3/ SUBSTRATES HELD AT 600 AND 700 DEGREES C IN N/SUB
400       2/O AND O/SUB 2/ AMBIENTS USING 355 NM ND-YAG LASER PULSES FOR
400       ABLATION OF THE TARGET. THE EXPERIMENTS WERE DONE EITHER IN THE
400       PRESENCE OR ABSENCE OF 193 NM EXCIMER LASER IRRADIATION OF THE
400       AMBIENT GAS BETWEEN THE TARGET AND THE SUBSTRATE. RESULTS WITHOUT THE
400       EXCIMER IRRADIATION SHOW THAT IN 0.2 TORR OF BOTH N/SUB 2/O AND O/SUB
400       2/, AT 700 DEGREES C SUBSTRATE SURFACE TEMPERATURE, EXCELLENT SMOOTH
400       FILMS WITH T/SUB C/ (R=0) OF 93 K AND J/SUB C/ (88 K) OF 1.3*10/SUP
400       6/ A/CM/SUP 2/ WERE OBTAINED. AT 600 DEGREES C, SEMICONDUCTING FILMS
400       WITH NO SUPERCONDUCTING TRANSITION WERE OBTAINED IN O/SUB 2/ AMBIENT,
400       WHEREAS IN N/SUB 2/O, SEMICONDUCTING NORMAL STATE BEHAVIOR WITH BROAD
400       SUPERCONDUCTING TRANSITION WAS FOUND. WITH THE 193 NM IRRADIATION, NO
400       CHANGE WAS OBSERVED IN THE ELECTRICAL PROPERTIES OF THE FILMS
400       DEPOSITED IN O/SUB 2/ AT 600 DEGREES C, WHEREAS IN N/SUB 2/O
400       REASONABLY GOOD SUPERCONDUCTING FILMS WITH NORMAL METALLIC BEHAVIOR
400       AND T/SUB C/ (R=0) OF 84 K WERE FOUND. SINCE THE 193 NM PHOTONS
400       HARDLY DISSOCIATE O/SUB 2/ MOLECULES, BUT VERY EFFICIENTLY
400       PHOTODISSOCIATE THE N/SUB 2/O MOLECULES TO FORM N/SUB 2/ AND O(/SUP
400       1/D), IT IS CONCLUDED THAT THE ATOMIC OXYGEN PRODUCED BY
400       PHOTODISSOCIATION OF N/SUB 2/O IS RESPONSIBLE FOR THE SUPERCONDUCTING
400       FILM DEPOSITION AT 600 DEGREES C.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING
500       THIN FILMS; SUPERCONDUCTING TRANSITION TEMPERATURE; VAPOUR
500       DEPOSITION; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; THIN FILMS; LASER ABLATION
510       DEPOSITION; SEMICONDUCTING FILMS; SUPERCONDUCTING TRANSITION; YBA/SUB
510       2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1750
 AUTH     = KODAS
 DT       = 02
 KN       = B40891500090
 LG       = ENGL
 SN       = ISSN 0003-6951
 YR       = 89
000       3399674
002       B40891500090
010       JOURNAL PAPER; EXPERIMENTAL.
100       GENERATION OF THICK YBA/SUB 2/YCU/SUB 3/O/SUB 7/ FILMS BY AEROSOL
100       DEPOSITION.
200       KODAS, T.T.; ENGLER, E.M.; LEE, V.Y.
220       IBM RES. DIV., ALMADEN RES. CENTER, SAN JOSE, CA, USA
310       APPL. PHYS. LETT. (USA)
330       8 MAY 1989. VOL.54, NO.19, P.1923-5, REF.12
350       ISSN 0003-6951, CODEN APPLAB
400       THICK SUPERCONDUCTING FILMS WERE FABRICATED BY PRODUCING HIGH-PURITY
400       BA/SUB 2/YCU/SUB 3/O/SUB 7/ PARTICLES BY AEROSOL DECOMPOSITION IN A
400       GASEOUS FLOW SYSTEM, DEPOSITING THE PARTICLES DIRECTLY FROM THE GAS
400       PHASE ONTO SURFACES BY THERMOPHORESIS, AND THEN SINTERING AND
400       ANNEALING THE DEPOSITED PARTICULATE FILMS IN AN OXYGEN FLOW.
400       PARTICULATE FILMS WITH THICKNESSES OF 1 MM WERE DEPOSITED ON THE
400       INSIDE SURFACES OF COPPER TUBES AND SINTERED TO PROVIDE UNIFORM
400       ADHERENT COATINGS WITH SHARP SUPERCONDUCTING TRANSITIONS ABOVE 91 K.
400       HIGH-PURITY POWDERS BASED ON THE BI-SR-CA-CU-O AND TL-CA-BA-CU-O
400       SYSTEMS WERE ALSO PRODUCED AND SINTERED TO FORM BULK CERAMICS WITH
400       TRANSITIONS AT 80 AND 110 K, RESPECTIVELY, SUGGESTING THAT THE
400       PROCESS IS GENERAL AND CAN BE USED FOR A VARIETY OF MATERIALS.
400       ADVANTAGES OF THE PROCESS INCLUDE THE EASE OF OBTAINING THE CORRECT
400       OXYGEN CONTENT AND THE ABILITY TO FABRICATE THICK FILMS OF FINE
400       GRAINED MATERIAL WHILE MINIMIZING EXPOSURE TO CARBON AND OTHER
400       CONTAMINANTS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING
500       THIN FILMS; VAPOUR DEPOSITION; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; AEROSOL DEPOSITION; THERMOPHORESIS;
510       SINTERING; ANNEALING; THICK FILMS; YBA/SUB 2/YCU/SUB 3/O/SUB 7/;
510       TL-CA-BA-CU-O.
550       YBA2YCU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS; TLCABACUO/SS
550       BA/SS CA/SS CU/SS TL/SS O/SS.

DOCUMENT=            1751
 AUTH     = NAKAHARA
 DT       = 02
 KN       = B40891500091
 LG       = ENGL
 SN       = ISSN 0003-6951
 YR       = 89
000       3399675
002       B40891500091
010       JOURNAL PAPER; EXPERIMENTAL.
100       ANALYSIS OF DISLOCATIONS IN Y-BA-CU-O SUPERCONDUCTORS.
200       NAKAHARA, S.; JIN, S.; SHERWOOD, R.C.; TIEFEL, T.H.
220       AT?T BELL LABS., MURRAY HILL, NJ, USA
310       APPL. PHYS. LETT. (USA)
330       8 MAY 1989. VOL.54, NO.19, P.1926-8, REF.11
350       ISSN 0003-6951, CODEN APPLAB
400       TRANSMISSION ELECTRON MICROSCOPY WAS USED TO CHARACTERIZE
400       DISLOCATIONS IN Y-BA-CU-O SUPERCONDUCTORS. DISLOCATIONS WHICH ARE
400       RARELY SEEN IN THE SINTERED YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
400       SUPERCONDUCTOR ARE FOUND TO BE ABUNDANT IN GRAIN-ORIENTED SAMPLES
400       FABRICATED BY THE MELT-TEXTURED GROWTH METHOD. THE DENSITY OF
400       DISLOCATIONS IS ESTIMATED TO BE ABOUT 10/SUP 9/-10/SUP 10/
400       LINES/CM/SUP 2/, WHICH IS 2-3 ORDERS OF MAGNITUDE INCREASED OVER THAT
400       FOR THE SINTERED SAMPLE. AN ANALYSIS USING THE G.B=0, 1, AND 2
400       CRITERIA UNAMBIGUOUSLY PROVES THAT THE BURGERS VECTORS OF THE
400       DISLOCATIONS ARE OF (100) OR (010) TYPE WITH THE SLIP OCCURRING ON
400       THE (010), (100), OR (001) PLANE. THESE RESULTS IMPLY THE POSSIBILITY
400       OF USING SLIP DEFORMATION TO INCREASE THE DEFECT DENSITY AND
400       INFLUENCE THE FLUX PINNING BEHAVIOR.
500       BARIUM COMPOUNDS; DEFORMATION; DISLOCATION DENSITY; FLUX PINNING;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SLIP; TRANSMISSION ELECTRON
500       MICROSCOPE EXAMINATION OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; TEM; DISLOCATIONS; BURGERS VECTORS;
510       SLIP; DEFORMATION; DEFECT DENSITY; FLUX PINNING; YBA/SUB 2/CU/SUB
510       3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1752
 AUTH     = DEW
 DT       = 02
 KN       = B40891500092
 LG       = ENGL
 SN       = ISSN 0003-6951
 YR       = 89
000       3399676
002       B40891500092
010       JOURNAL PAPER; EXPERIMENTAL.
100       EFFECTS AND LOSS OF LEAD IN DOPED BI-SR-CA-CU-O FILMS.
200       DEW, S.K.; OSBORNE, N.R.; MULHERN, P.J.; PARSONS, R.R.
220       DEPT. OF PHYS., BRITISH COLUMBIA UNIV., VANCOUVER, BC, CANADA
310       APPL. PHYS. LETT. (USA)
330       8 MAY 1989. VOL.54, NO.19, P.1929-31, REF.11
350       ISSN 0003-6951, CODEN APPLAB
400       FILMS OF BI-SR-CA-CU-O, WITH AND WITHOUT LEAD DOPING, WERE PREPARED
400       BY RF MAGNETRON SPUTTERING OF OXIDE TARGETS. THE FILMS WERE ANNEALED
400       IN OXYGEN FOR VARYING DURATIONS AND CHARACTERIZED BY ELECTRON
400       MICROPROBE AND X-RAY DIFFRACTION. THE RESULTS SHOW A DRASTIC LOSS OF
400       LEAD DURING ANNEALING. FILMS WITH THE LEAD-ENHANCED BI/SUB 2/SR/SUB
400       2/CA/SUB 2/CU/SUB 3/O/SUB Y/ (2223) PHASE HAD NO DETECTABLE LEAD
400       AFTER ANNEALING. THE FILMS WERE SEEN TO GROW IN STAGES OF 2201, 2212,
400       AND FINALLY 2223 PHASES. THE LEAD AFFECTED FILM DEVELOPMENT THROUGH
400       THESE STAGES.
500       ANNEALING; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LEAD COMPOUNDS; SPUTTERED COATINGS; STOICHIOMETRY;
500       STRONTIUM COMPOUNDS; SUPERCONDUCTING THIN FILMS; X-RAY DIFFRACTION
500       EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; RF MAGNETRON SPUTTERING; ELECTRON
510       MICROPROBE; X-RAY DIFFRACTION; ANNEALING; PB-BI-SR-CA-CU-O.
550       PBBISRCACUO/SS BI/SS CA/SS CU/SS PB/SS SR/SS O/SS.

DOCUMENT=            1753
 AUTH     = MAXFIELD
 DT       = 02
 KN       = B40891500093
 LG       = ENGL
 SN       = ISSN 0003-6951
 YR       = 89
000       3399677
002       B40891500093
010       JOURNAL PAPER; EXPERIMENTAL.
100       BI-SR-CA-CU-O AND PB-BI-SR-CA-CU-O SUPERCONDUCTOR FILMS VIA AN
100       ELECTRODEPOSITION PROCESS.
200       MAXFIELD, M.; ECKHARDT, H.; IQBAL, Z.; REIDINGER, F.; BAUGHMAN, R.H.
220       ALLIED-SIGNAL INC., CORP. TECHNOL., MORRISTOWN, NJ, USA
310       APPL. PHYS. LETT. (USA)
330       8 MAY 1989. VOL.54, NO.19, P.1932-3, REF.12
350       ISSN 0003-6951, CODEN APPLAB
400       A NOVEL ELECTROCHEMICAL PROCESS HAS BEEN DEVELOPED FOR THE FORMATION
400       OF SUPERCONDUCTING FILMS. USING THIS PROCESS, SUPERCONDUCTING FILMS
400       OF BI/SUB 2/SR/SUB 2/CA/SUB 1/CU/SUB 2/O/SUB 8/ AND (PB,BI)/SUB
400       2/SR/SUB 2/CA/SUB 1/CU/SUB 2/O/SUB 8/ HAVE BEEN FORMED. THE PROCESS
400       CONSISTS OF SIMULTANEOUSLY DEPOSITING THE METALLIC CONSTITUENTS OF
400       THE SUPERCONDUCTOR FROM A SINGLE ELECTROLYTE, AND THERMALLY OXIDIZING
400       THE RESULTING PRECURSOR FILM TO FORM THE SUPERCONDUCTING PHASE.
400       APPLICATION OF -4 TO -5 V VS. AG/AG/SUP +/ TO A CONDUCTIVE CATHODE
400       SUBSTRATE, IMMERSED IN AN ELECTROLYTE CONTAINING SALTS OF ALL OF THE
400       METALS, REDUCES THE METAL CATIONS CAUSING THEM TO DEPOSIT ON THE
400       CATHODE AS A METALLIC FILM PRECURSOR. PRECURSOR FILMS HAVING DESIRED
400       STOICHIOMETRIES WERE OBTAINED BY REGULATING THE ELECTROLYTE BATH
400       COMPOSITION.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; ELECTRODEPOSITION;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LEAD COMPOUNDS; STRONTIUM
500       COMPOUNDS; SUPERCONDUCTING THIN FILMS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; FILMS; ELECTRODEPOSITION;
510       STOICHIOMETRIES; PB-BI-SR-CA-CU-O; BI/SUB 2/SR/SUB 2/CA/SUB 1/CU/SUB
510       2/O/SUB 8/.
550       PBBISRCACUO/SS BI/SS CA/SS CU/SS PB/SS SR/SS O/SS; BI2SR2CA1CU2O8/SS
550       BI2/SS CA1/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS O8/SS SR/SS O/SS.

DOCUMENT=            1754
 AUTH     = FANG
 DT       = 02
 KN       = B40891500094
 LG       = ENGL
 SN       = ISSN 0003-6951
 YR       = 89
000       3399678
002       B40891500094
010       JOURNAL PAPER; THEORETICAL, EXPERIMENTAL.
100       COMMENT ON 'SMALL FIELD BEHAVIOR OF CRITICAL CURRENT IN Y/SUB
100       1/BA/SUB 2/CU/SUB 3/O/SUB 7/ SINTERED SAMPLES'.
200       FANG, P.H.
220       DEPT. OF PHYS., BOSTON COLL., CHESTNUT HILL, MA, USA
310       APPL. PHYS. LETT. (USA)
330       8 MAY 1989. VOL.54, NO.19, P.1937, REF.3
350       ISSN 0003-6951, CODEN APPLAB
400       FOR ORIGINAL PAPER SEE IBID., VOL.53, P.609 (1988) IN THE RECENT
400       LETTER OF PATERNO ET AL. ON THE ANALYSIS OF THE MAGNETIC FIELD
400       DEPENDENCE OF THE CRITICAL CURRENT OF SUPERCONDUCTING Y/SUB 1/BA/SUB
400       2/CU/SUB 3/O/SUB 7/, A COMPARISON WAS MADE BETWEEN THEIR EXPERIMENTAL
400       DATA AND THEORETICAL FORMULA FOR AN ARRAY OF JOSEPHSON JUNCTIONS. THE
400       JOSEPHSON TUNNELING IN A GRANULAR SYSTEM IS CONCEPTIONALLY ENTICING
400       AND, THEREFORE, A QUANTITATIVE VERIFICATION BASED ON A SPECIFIC
400       THEORETICAL MODEL WOULD BE OF GREAT SIGNIFICANCE. FANG POINTS OUT
400       THAT THE CLAIM OF THESE AUTHORS ON THE AGREEMENT BETWEEN THE
400       THEORETICAL FORMULA AND THE EXPERIMENTAL DATA IS ERRONEOUS, AND
400       SUGGESTS A PHENOMENOLOGICAL MODIFICATION OF THE THEORETICAL FORMULA
400       ITSELF. PATERNO ET AL. REPLY TO THE COMMENTS.
500       BARIUM COMPOUNDS; CRITICAL CURRENTS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; JOSEPHSON EFFECT; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CRITICAL CURRENT; JOSEPHSON
510       JUNCTIONS; GRANULAR SYSTEM; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7/.
550       Y1BA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1755
 AUTH     = KONDO
 DT       = 02
 KN       = B40891500382
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399966
002       B40891500382
010       JOURNAL PAPER; THEORETICAL.
100       THE MADELUNG ENERGY IN COPPER-OXIDE-BASED CERAMICS.
200       KONDO, J.; ASAI, Y.; NAGAI, S.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.3-16, REF.4
350       ISSN 0366-9092, CODEN DESIA7
400       THE MADELUNG ENERGY IN THE (Y,CA)(BA,LA)/SUB 2/CU/SUB 3/O/SUB 6+
400       DELTA / SYSTEM HAS BEEN CALCULATED IN ORDER TO FIND THE DISTRIBUTION
400       OF HOLE CARRIERS AMONG SITES. THE AUTHORS REGARD THE COMPOUND AS A
400       SUPERCONDUCTOR WHEN THE LOWEST-ENERGY DISTRIBUTION IS SUCH THAT HOLES
400       ENTER SITES IN CUO/SUB 2/ SHEETS, WHEREAS THEY REGARD IT AS A
400       SEMICONDUCTOR WHEN NO HOLES ENTER SITES IN THE CUO/SUB 2/ SHEETS.
400       BASED ON THIS CRITERION, THEY FIND A PHASE DIAGRAM, WHERE THE
400       SUPERCONDUCTING REGION IS SEPARATED FROM THE SEMICONDUCTING REGION BY
400       A BOUNDARY. A GOOD AGREEMENT WITH THE EXPERIMENTAL FINDING BY TOKURA
400       ET AL. (1988) IS OBTAINED, WHEN ACCOUNT IS TAKEN OF THE ORDERING OF
400       OXYGEN VACANCIES IN THE BASAL PLANE. IT IS FOUND THAT HOLES
400       INTRODUCED BY REPLACING Y BY CA IN THE Y PLANES TEND TO ENTER SITES
400       IN CUO/SUB 2/ SHEETS, WHEREAS THOSE INTRODUCED BY REPLACING LA BY BA
400       IN THE BA PLANES TEND TO ENTER SITES IN CUO CHAINS. IT IS ALSO FOUND
400       THAT FOR SOME COMPOUNDS WITH SMALL DELTA ( APPROXIMATELY 0.25), HOLES
400       ARE SPONTANEOUSLY PRODUCED IN CUO/SUB 2/ SHEETS, SO THAT THE
400       COMPOUNDS MAY BE A SUPERCONDUCTOR ALTHOUGH THEIR NOMINAL HOLE CONTENT
400       IS ZERO.
500       BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CERAMICS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LANTHANUM COMPOUNDS; LATTICE ENERGY; PHASE DIAGRAMS;
500       SUPERCONDUCTING SEMICONDUCTORS; VACANCIES (CRYSTAL); YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; HOLE CARRIER SITE DISTRIBUTION; O
510       VACANCY ORDERING; CERAMICS; MADELUNG ENERGY; CUO/SUB 2/ SHEETS; PHASE
510       DIAGRAM; SUPERCONDUCTING REGION; SEMICONDUCTING REGION; BASAL PLANE;
510       CUO CHAINS; NOMINAL HOLE CONTENT; Y/SUB 1-X/CA/SUB X/BA/SUB
510       2-Y/LA/SUB Y/CU/SUB 3/O/SUB 6+ DELTA /.
550       YCABALACU3O/SS CU3/SS BA/SS CA/SS CU/SS LA/SS O/SS Y/SS.

DOCUMENT=            1756
 AUTH     = OKA
 DT       = 02
 KN       = B40891500383
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399967
002       B40891500383
010       JOURNAL PAPER; EXPERIMENTAL.
100       PHASE DIAGRAM OF THE LA/SUB 2/O/SUB 3/-CUO SYSTEM AND CRYSTAL GROWTH
100       OF (LABA)/SUB 2/CUO/SUB 4/.
200       OKA, K.; UNOKI, H.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.17-21, REF.9
350       ISSN 0366-9092, CODEN DESIA7
400       SINGLE CRYSTALS OF (LABA)/SUB 2/CUO/SUB 4/ WERE GROWN BY THE
400       TOP-SEEDED SOLUTION GROWTH (TSSG) METHOD. A CRYSTALLOGRAPHIC PHASE
400       DIAGRAM OF THE LA/SUB 2/O/SUB 3/-CUO SYSTEM WAS DERIVED BY MEANS OF
400       DIFFERENTIAL THERMAL ANALYSIS, QUENCHING TECHNIQUE AND X-RAY
400       DIFFRACTION.
500       BARIUM COMPOUNDS; CRYSTAL GROWTH FROM SOLUTION; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LANTHANUM COMPOUNDS; PHASE DIAGRAMS; THERMAL
500       ANALYSIS; X-RAY DIFFRACTION EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; SINGLE CRYSTALS; DTA; CRYSTAL
510       GROWTH; TOP-SEEDED SOLUTION GROWTH; CRYSTALLOGRAPHIC PHASE DIAGRAM;
510       DIFFERENTIAL THERMAL ANALYSIS; QUENCHING TECHNIQUE; X-RAY
510       DIFFRACTION; LA/SUB 2/O/SUB 3/-CUO SYSTEM; (LABA)/SUB 2/CUO/SUB 4/.
550       LA2O3CUO/SS LA2/SS CU/SS LA/SS O3/SS O/SS; LABACUO4/SS BA/SS CU/SS
550       LA/SS O4/SS O/SS.

DOCUMENT=            1757
 AUTH     = OKA
 DT       = 02
 KN       = B40891500384
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399968
002       B40891500384
010       JOURNAL PAPER; EXPERIMENTAL.
100       PHASE-EQUILIBRIUM DIAGRAM IN THE TERNARY SYSTEM Y/SUB 2/O/SUB
100       3/-BAO-CUO.
200       OKA, K.; NAKANE, K.; ITO, M.; SAITO, M.; UNOKI, H.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.22-7, REF.14
350       ISSN 0366-9092, CODEN DESIA7
400       A PHASE-EQUILIBRIUM DIAGRAM OF THE TERNARY SYSTEM OF Y/SUB 2/O/SUB
400       3/-BAO-CUO WAS INVESTIGATED. THE TEMPERATURE VS. CONCENTRATION
400       DIAGRAMS ARE GIVEN OF FOUR BINARY SYSTEMS RANGING FROM YBA/SUB
400       2/CU/SUB 3/O/SUB 7-Y/ TO CUO, TO BACUO/SUB 2/.3CUO, TO 3BACUO/SUB
400       2/.4CUO AND TO 3BACUO/SUB 2/.2CUO MIXTURES. A LIQUIDUS LINE REQUIRED
400       FOR THE PREPARATION OF YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/ SINGLE CRYSTAL
400       FROM SOLUTION WAS FOUND TO BE EXTREMELY NARROW IN CONCENTRATION
400       RANGE.
500       BARIUM COMPOUNDS; CRYSTAL GROWTH FROM SOLUTION; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; PHASE DIAGRAMS; PHASE EQUILIBRIUM; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; CRYSTAL GROWTH FROM SOLUTION;
510       PHASE-EQUILIBRIUM DIAGRAM; TERNARY SYSTEM; TEMPERATURE VS.
510       CONCENTRATION DIAGRAMS; MIXTURES; LIQUIDUS LINE; Y/SUB 2/O/SUB
510       3/-BAO-CUO; YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/ SINGLE CRYSTAL.
550       Y2O3BAOCUO/SS BA/SS CU/SS O3/SS Y2/SS O/SS Y/SS; YBA2CU3O/SS BA2/SS
550       CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1758
 AUTH     = IHARA
 DT       = 02
 KN       = B40891500385
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399969
002       B40891500385
010       JOURNAL PAPER; EXPERIMENTAL.
100       STRONG CORRELATION BETWEEN T/SUB C/ AND LATTICE PARAMETERS IN BA/SUB
100       2/YCU/SUB 3/O/SUB Y/.
200       IHARA, H.; OYANAGI, H.; SUGISE, R.; OHNO, E.; MATSUBARA, T.; OHASHI,
200       S.; TERADA, N.; JO, M.; HIRABAYASHI, M.; MURATA, K.; NEGISHI, A.;
200       KIMURA, Y.; AKIBA, E.; HAYAKAWA, H.; SHIN, S.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.28-32, REF.8
350       ISSN 0366-9092, CODEN DESIA7
400       SUPERCONDUCTING PROPERTIES AND LATTICE PARAMETERS WERE SYSTEMATICALLY
400       STUDIED FOR BA/SUB 2/YCU/SUB 3/O/SUB Y/ (6<Y<7) AS A FUNCTION OF
400       OXYGEN CONTENT Y. THE RESULTS SHOW THAT THE T/SUB C/ VALUE AND
400       LATTICE PARAMETER HAVE A STRONG CORRELATION IN A STEPWISE CHANGE WITH
400       THE OXYGEN CONTENT. THE LATTICE PARAMETERS OF C AND (B-A) CHANGE
400       STEPWISELY AT Y=6.7 AND 6.35 LIKE THE CU VALENCY. THE BOND LENGTH OF
400       CU-O ALONG THE PYRAMIDAL HEIGHT STRONGLY CORRELATES TO THE T/SUB C/
400       VALUE. THE DISTORTION OF THE PYRAMIDAL BASAL PLANE ALSO HAS A
400       RELATION TO THE T/SUB C/ VALUE.
500       BARIUM COMPOUNDS; BOND LENGTHS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       LATTICE CONSTANTS; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; TRANSITION TEMPERATURE; O CONTENT
510       DEPENDENCE; LATTICE PARAMETERS; T/SUB C/ VALUE; CU VALENCY; BOND
510       LENGTH; PYRAMIDAL HEIGHT; PYRAMIDAL BASAL PLANE; BA/SUB 2/YCU/SUB
510       3/O/SUB Y/.
550       BA2YCU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1759
 AUTH     = OYANAGI
 DT       = 02
 KN       = B40891500386
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399970
002       B40891500386
010       JOURNAL PAPER; EXPERIMENTAL.
100       LOCAL STRUCTURE AND VALENCE STATES IN BA/SUB 2/YCU/SUB 3/O/SUB Y/
100       STUDIED BY X-RAY ABSORPTION FINE STRUCTURE.
200       OYANAGI, H.; IHARA, H.; MATSUBARA, T.; SUGISE, R.; HIRABAYASHI, M.;
200       MATSUSHITA, T.; TOKUMOTO, M.; MURATA, K.; NISHIHARA, Y.; KIMURA, Y.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.33-6, REF.4
350       ISSN 0366-9092, CODEN DESIA7
400       THE ROLE OF OXYGEN VACANCIES IN HIGH T/SUB C/ SUPERCONDUCTIVITY OF
400       BA/SUB 2/YCU/SUB 3/O/SUB Y/ (6.22<Y<6.96) HAS BEEN SYSTEMATICALLY
400       INVESTIGATED BY X-RAY ABSORPTION FINE STRUCTURE ON THE CU K-EDGE. THE
400       AUTHORS FIND THAT THE SHARP DEPRESSION OF HIGH T/SUB C/ (90 K) TO LOW
400       T/SUB C/ (50-60 K) STATES AT THE CRITICAL OXYGEN CONTENT Y=6.7 IS
400       STRONGLY RELATED WITH THE LOCAL STRUCTURE AND CU VALENCY. EXTENDED
400       X-RAY ABSORPTION FINE STRUCTURE (EXAFS) RESULTS INDICATE THAT OXYGEN
400       ORDERING IN THE O1-CU1-O1 LINEAR CHAIN PREDOMINANTLY INFLUENCES THE
400       STRUCTURE ALONG THE C-AXIS AND THE CU-O VIBRATIONAL PROPERTIES OF
400       CUO/SUB 2/ PLANES. THE NEAR-EDGE SPECTRA INDICATE THAT CU/SUP +/
400       SPECIES ARE FORMED AT CU1 SITES BELOW THE CRITICAL OXYGEN CONTENT,
400       SUGGESTING THAT THE PRESENCE OF CU D-HOLE ON THE O1-CU1-O1 CHAIN IS
400       ESSENTIAL FOR HIGH T/SUB C/ (90 K) SUPERCONDUCTIVITY.
500       BARIUM COMPOUNDS; EXAFS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SHORT-RANGE ORDER; VACANCIES (CRYSTAL); VALENCE BANDS; XANES; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O VACANCIES; O CONTENT
510       DEPENDENCE; VALENCE STATES; X-RAY ABSORPTION FINE STRUCTURE; CU
510       K-EDGE; LOCAL STRUCTURE; EXAFS; O1-CU1-O1 LINEAR CHAIN; CU-O
510       VIBRATIONAL PROPERTIES; CUO/SUB 2/ PLANES; NEAR-EDGE SPECTRA; CU1
510       SITES; CU D-HOLE; 90 K; 50 TO 60 K; BA/SUB 2/YCU/SUB 3/O/SUB Y/.
550       BA2YCU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 9.0 E+01 K; TEMPERATURE 5.0 E+01 TO 6.0 E+01 K.

DOCUMENT=            1760
 AUTH     = MURATA
 DT       = 02
 KN       = B40891500387
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399971
002       B40891500387
010       JOURNAL PAPER; EXPERIMENTAL.
100       PRESSURE EFFECT ON THE SUPERCONDUCTIVITY OF YBA/SUB 2/CU/SUB 3/O/SUB
100       Y/.
200       MURATA, K.; HONDA, Y.; OYANAGI, H.; NISHIHARA, Y.; IHARA, H.; TERADA,
200       N.; SUGISE, R.; HIRABAYASHI, M.; TOKUMOTO, M.; KIMURA, Y.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.37-43, REF.9
350       ISSN 0366-9092, CODEN DESIA7
400       PRESSURE DEPENDENCE OF THE SUPERCONDUCTING TRANSITION TEMPERATURE,
400       T/SUB C/(P), OF THE YBA/SUB 2/CU/SUB 3/O/SUB Y/ WITH VARIOUS OXYGEN
400       CONCENTRATIONS Y IS PRESENTED. THE SENSITIVITY OF T/SUB C/ TO
400       PRESSURE, DT/SUB C//DP, OF OXYGEN DEFICIENT SAMPLES IS POSITIVE AND
400       FIVE TIMES LARGER THAN MOD DT/SUB C/ MOD DP MOD OF 90 K SAMPLES WITH
400       Y>6.8. MOREOVER, DT/SUB C//DP AS A FUNCTION OF Y DISPLAYS PEAKS AT
400       Y=6.3 AND 6.75, WHERE T/SUB C/ CHANGES STEPWISELY AGAINST OXYGEN
400       CONTENT. THESE RESULTS IMPLY THAT (I) THE SUPERCONDUCTIVITIES OF 60 K
400       AND 90 K STATES ARE OF THE DIFFERENT STATES, (II) PEAKING IN DT/SUB
400       C//DP VS. Y SHOWS PRESSURE INDUCED PHASE TRANSITIONS FROM 0 K TO 60 K
400       STATES, AND FROM 60 K TO 90 K STATES, AND (III) THE ULTIMATE
400       PARAMETER THAT RULES T/SUB C/ IS NOT THE OXYGEN CONTENT, BUT MAY BE
400       THE DISTRIBUTION OF THE POPULATION OF THE CU ATOMS WITH VALENCIES OF
400       +1 AND +2. THE FACTS THAT ONLY THE 90 K SAMPLE AMONG YBA/SUB 2/CU/SUB
400       3/O/SUB Y/ MATERIALS IS INSENSITIVE TO PRESSURE, AND THAT OTHER LOWER
400       T/SUB C/ SAMPLES HAVE LARGE POSITIVE PRESSURE DEPENDENCE, SUGGEST
400       THAT THE VALUE OF 90 K IS AN UPPERMOST VALUE OF T/SUB C/ IN THIS
400       MATERIAL.
500       BARIUM COMPOUNDS; HIGH-PRESSURE EFFECTS IN SOLIDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; PRESSURE DEPENDENCE; O CONTENT
510       DEPENDENCE; CU DISTRIBUTION; SUPERCONDUCTING TRANSITION TEMPERATURE;
510       PRESSURE INDUCED PHASE TRANSITIONS; 60 K; 90 K; 0 K; YBA/SUB 2/CU/SUB
510       3/O/SUB Y/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 6.0 E+01 K; TEMPERATURE 9.0 E+01 K; TEMPERATURE 0.0 E+00
560       K.

DOCUMENT=            1761
 AUTH     = OBARA
 DT       = 02
 KN       = B40891500388
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399972
002       B40891500388
010       JOURNAL PAPER; EXPERIMENTAL.
100       TEMPERATURE AND MAGNETIC FIELD DEPENDENCE OF THE CRITICAL CURRENT IN
100       POLYCRYSTALLINE BA/SUB 2/YCU/SUB 3/O/SUB Y/.
200       OBARA, H.; YAMASAKI, H.; KIMURA, Y.; ISHIHARA, T.; HIGASHIDA, Y.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.44-9, REF.15
350       ISSN 0366-9092, CODEN DESIA7
400       THE TEMPERATURE AND MAGNETIC FIELD DEPENDENCE OF THE CRITICAL CURRENT
400       DENSITY, J/SUB C/, OF THE POLYCRYSTALLINE BA/SUB 2/YCU/SUB 3/O/SUB Y/
400       HAVE BEEN MEASURED. IN THE LOW MAGNETIC FIELD RANGE, 0.6
400       APPROXIMATELY 7 KOE, THE J/SUB C/ BEHAVIOR CHANGED AT AROUND 70 K.
400       BELOW 70 K, J/SUB C/ SHOWED DIFFERENT TEMPERATURE DEPENDENCES BETWEEN
400       FIELD COOLING AND ZERO-FIELD COOLING, THAT IS, THE J/SUB C/ VALUE
400       MEASURED WHEN THE SAMPLE WAS COOLED IN A FIXED MAGNETIC FIELD WAS
400       DIFFERENT FROM THAT MEASURED WHEN THE SAMPLE WAS COOLED IN ZERO
400       MAGNETIC FIELD AND THEN A MAGNETIC FIELD WAS APPLIED. ABOVE 70 K,
400       HOWEVER, SUCH DIFFERENT TEMPERATURE DEPENDENCES ON J/SUB C/ WERE NOT
400       OBSERVED. THESE EXPERIMENTAL RESULTS CAN BE ATTRIBUTED TO THE EFFECTS
400       OF ANISOTROPY, AND A CROSSOVER BETWEEN TWO- AND THREE-DIMENSIONAL
400       SUPERCONDUCTIVITY IS CONSIDERED TO OCCUR.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       HIGH-TEMPERATURE SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE;
510       ANISOTROPY EFFECTS; MAGNETIC FIELD DEPENDENCE; CRITICAL CURRENT
510       DENSITY; FIELD COOLING; ZERO-FIELD COOLING; CROSSOVER; 70 K;
510       POLYCRYSTALLINE BA/SUB 2/YCU/SUB 3/O/SUB Y/.
550       BA2YCU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 7.0 E+01 K.

DOCUMENT=            1762
 AUTH     = OYANAGI
 DT       = 02
 KN       = B40891500389
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399973
002       B40891500389
010       JOURNAL PAPER; EXPERIMENTAL.
100       LOCAL STRUCTURE AND VALENCE STATES OF FE-DOPED BA/SUB 2/YCU/SUB
100       3/O/SUB Y/.
200       OYANAGI, H.; OBARA, H.; MURATA, K.; IHARA, H.; MATSUSHITA, T.;
200       TOKUMOTO, M.; NISHIHARA, Y.; KIMURA, Y.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.50-6, REF.15
350       ISSN 0366-9092, CODEN DESIA7
400       THE EFFECT OF FE-DOPING ON HIGH T/SUB C/ SUPERCONDUCTIVITY IN BA/SUB
400       2/YCU/SUB 3/O/SUB Y/ (Y=6.9) HAS BEEN SYSTEMATICALLY INVESTIGATED BY
400       X-RAY ABSORPTION FINE STRUCTURE ON THE FE K- AND CU K-EDGE. EXTENDED
400       X-RAY ABSORPTION FINE STRUCTURE (EXAFS) RESULTS ON THE CU K-EDGE SHOW
400       THAT THE LOCAL STRUCTURE OF CU IONS IN TETRAGONAL BA/SUB 2/Y(CU/SUB
400       1-X/FE/SUB X/)/SUB 3/O/SUB Y/ (X<0.06) IS UNCHANGED FROM THAT OF
400       NONDOPED ORTHORHOMBIC BA/SUB 2/YCU/SUB 3/O/SUB Y/. THESE RESULTS
400       INDICATE THAT THE ORTHORHOMBIC MICROSTRUCTURE IS RETAINED AFTER FE
400       DOPING AS MICRODOMAINS. FE K NEAR-EDGE SPECTRA SHOW THAT THE FE
400       IMPURITIES EXIST MOSTLY AS 3+ IONS.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       CRYSTAL MICROSTRUCTURE; EXAFS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SHORT-RANGE ORDER; VALENCE BANDS; XANES; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; LOCAL STRUCTURE; VALENCE STATES;
510       X-RAY ABSORPTION FINE STRUCTURE; CU K-EDGE; EXAFS; ORTHORHOMBIC
510       MICROSTRUCTURE; FE DOPING; MICRODOMAINS; FE K NEAR-EDGE SPECTRA;
510       TETRAGONAL BA/SUB 2/Y(CU/SUB 1-X/FE/SUB X/)/SUB 3/O/SUB Y/; NONDOPED
510       ORTHORHOMBIC BA/SUB 2/YCU/SUB 3/O/SUB Y/.
550       BA2YCUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS; BA2YCU3O/SS BA2/SS
550       CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1763
 AUTH     = IHARA
 DT       = 02
 KN       = B40891500390
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399974
002       B40891500390
010       JOURNAL PAPER; EXPERIMENTAL.
100       NEW TL-BA-CA-CU-O (1234 AND 1245) SUPERCONDUCTORS WITH T/SUB C/>117
100       K.
200       IHARA, H.; HIRABAYASHI, M.; TERADA, N.; JO, M.; HAYASHI, K.;
200       TOKUMOTO, M.; MURATA, K.; KIMURA, Y.; SUGISE, R.; SHIMOMURA, T.;
200       OHASHI, S.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.57-68, REF.9
350       ISSN 0366-9092, CODEN DESIA7
400       THE NEW TLBA/SUB 2/CA/SUB 3/CU/SUB 4/O/SUB 11/ (1234) AND TLBA/SUB
400       2/CA/SUB 4/CU/SUB 5/O/SUB 13/ (1245) SUPERCONDUCTORS WITH NEW
400       COMPOSITION AND NEW STRUCTURE HAVE BEEN DESIGNED AND SYNTHESIZED FOR
400       THE FIRST TIME. THE COMPOUNDS HAVE THE T/SUB C/ VALUES OF 117
400       APPROXIMATELY 122 K. THE HIGHEST T/SUB C/ VALUE WAS OBTAINED FOR THE
400       1234 PHASE. THESE ARE SINGLE TL-O LAYER COMPOUNDS WITH LESS TL
400       CONTENT THAN A HALF OF THAT IN THE PREVIOUS 2223 PHASE. THE STRUCTURE
400       OF THE COMPOUNDS IS A SIMPLE TETRAGONAL PHASE WITH LATTICE CONSTANTS
400       OF A=B=3.85 AA AND C=19.1 AA FOR THE 1234 PHASE AND A=B=3.85 AA AND
400       C=22.3 AA FOR THE 1245 PHASE. THE ELECTRON DIFFRACTION PATTERNS AND
400       THE LATTICE IMAGES FROM A HIGH RESOLUTION TEM HAVE CONFIRMED THE
400       OXYGEN-DEFICIENT LAYERED-PEROVSKITE STRUCTURE WITH THE SPACE GROUP OF
400       P4/MMM. THE C-LATTICE CONSTANT FOLLOWS THE C-AXIS RULE OF A LINEAR
400       RELATION OF C=6.3+3.2N (N=THE NUMBER OF CU-O LAYER). THE T/SUB C/
400       VALUE IS STRONGLY RELATED TO THE VALENCE OF CU ION.
500       BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; ELECTRON DIFFRACTION EXAMINATION OF MATERIALS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LATTICE CONSTANTS; SUPERCONDUCTING
500       TRANSITION TEMPERATURE; THALLIUM COMPOUNDS; TRANSMISSION ELECTRON
500       MICROSCOPE EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; CU VALENCY; COMPOSITION;
510       STRUCTURE; T/SUB C/ VALUES; 1234 PHASE; SINGLE TL-O LAYER COMPOUNDS;
510       SIMPLE TETRAGONAL PHASE; LATTICE CONSTANTS; 1245 PHASE; ELECTRON
510       DIFFRACTION PATTERNS; LATTICE IMAGES; HIGH RESOLUTION TEM;
510       LAYERED-PEROVSKITE STRUCTURE; SPACE GROUP; P4/MMM; C-AXIS RULE; 117
510       TO 122 K; TLBA/SUB 2/CA/SUB 3/CU/SUB 4/O/SUB 11/; TLBA/SUB 2/CA/SUB
510       4/CU/SUB 5/O/SUB 13/.
550       TLBA2CA3CU4O11/SS BA2/SS CA3/SS CU4/SS O11/SS BA/SS CA/SS CU/SS TL/SS
550       O/SS; TLBA2CA4CU5O13/SS BA2/SS CA4/SS CU5/SS O13/SS BA/SS CA/SS CU/SS
550       TL/SS O/SS.
560       TEMPERATURE 1.17 E+02 TO 1.22 E+02 K.

DOCUMENT=            1764
 AUTH     = AKOH
 DT       = 02
 KN       = B40891500391
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399975
002       B40891500391
010       JOURNAL PAPER; EXPERIMENTAL.
100       THICKNESS DEPENDENCE OF SUPERCONDUCTIVITY IN RF-SPUTTERED Y-BA-CU-O
100       THIN FILMS.
200       AKOH, H.; SHINOKI, F.; TAKAHASHI, M.; TAKADA, S.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.69-73, REF.11
350       ISSN 0366-9092, CODEN DESIA7
400       Y-BA-CU-O THIN FILMS (100-730 NM) WITH SMALL GRAINS AND A SMOOTH
400       SURFACE HAVE BEEN FABRICATED BY RF DIODE SPUTTERING. THE VALUES OF
400       TRANSITION TEMPERATURE T/SUB C/ AND CRITICAL CURRENT DENSITY J/SUB C/
400       FOR THE FILM (730 NM THICKNESS) ON SRTIO/SUB 3/ ARE 65 K AND
400       1.2*10/SUP 5/ A/CM/SUP 2/ AT 4.2 K, RESPECTIVELY. THE THICKNESS
400       DEPENDENCE OF T/SUB C/ AND J/SUB C/ FOR THE PATTERNED FILMS SHOWS
400       THAT T/SUB C/ AND J/SUB C/ ARE ALMOST CONSTANT FOR FILMS WITH A
400       THICKNESS OF D>OR=200 NM.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SPUTTERED COATINGS; SUPERCONDUCTING
500       THIN FILMS; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; SMALL GRAINS; SMOOTH SURFACE; RF
510       DIODE SPUTTERING; TRANSITION TEMPERATURE; CRITICAL CURRENT DENSITY;
510       THICKNESS DEPENDENCE; PATTERNED FILMS; 100 TO 730 NM; 4.2 K; 65 K;
510       Y-BA-CU-O THIN FILMS; SRTIO/SUB 3/.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS; SRTIO3/SUR TIO3/SUR O3/SUR SR/SUR
550       TI/SUR O/SUR SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS.
560       SIZE 1.0 E-07 TO 7.3 E-07 M; TEMPERATURE 4.2 E+00 K; TEMPERATURE 6.5
560       E+01 K.

DOCUMENT=            1765
 AUTH     = AKOH
 DT       = 02
 KN       = B40891500392
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399976
002       B40891500392
010       JOURNAL PAPER; EXPERIMENTAL.
100       S-N-S JOSEPHSON JUNCTION CONSISTING OF Y-BA-CU-O/AU/NB THIN FILMS.
200       AKOH, H.; SHINOKI, F.; TAKAHASHI, M.; TAKADA, S.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.74-8, REF.12
350       ISSN 0366-9092, CODEN DESIA7
400       AN S-N-S JOSEPHSON JUNCTION CONSISTING OF Y-BA-CU-O/AU/NB THIN FILMS
400       HAS BEEN FABRICATED BY MAKING USE OF THE PROXIMITY EFFECT. THE
400       AC-JOSEPHSON EFFECT CAN BE CONFIRMED BY THE OBSERVATION OF THE
400       SHAPIRO STEPS IN THIS S-N-S JUNCTION UNDER MICROWAVE RADIATION. IN
400       ADDITION, THE EFFECTS OF THE MAGNETIC FIELD AND TEMPERATURE ON THE
400       CRITICAL CURRENT HAVE BEEN DEMONSTRATED, WHICH INDICATES THAT THE
400       JUNCTION BEHAVES PHENOMENOLOGICALLY AS A JOSEPHSON JUNCTION.
500       BARIUM COMPOUNDS; CRITICAL CURRENTS; GOLD; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; JOSEPHSON EFFECT; NIOBIUM; SUPERCONDUCTING THIN
500       FILMS; TYPE II SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; MAGNETIC FIELD DEPENDENCE;
510       TEMPERATURE DEPENDENCE; THIN FILMS; S-N-S JOSEPHSON JUNCTION;
510       PROXIMITY EFFECT; AC-JOSEPHSON EFFECT; SHAPIRO STEPS; MICROWAVE
510       RADIATION; CRITICAL CURRENT; YBACUO-AU-NB.
550       YBACUO-AU-NB/INT YBACUO/INT AU/INT BA/INT CU/INT NB/INT O/INT Y/INT
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS AU/EL NB/EL.

DOCUMENT=            1766
 AUTH     = AKOH
 DT       = 02
 KN       = B40891500393
 LG       = ENGL
 SN       = ISSN 0366-9092
 YR       = 89
000       3399977
002       B40891500393
010       JOURNAL PAPER; EXPERIMENTAL.
100       FABRICATION OF S-N-S JOSEPHSON JUNCTIONS OF Y-BA-CU-O/AU/NB THIN FILM
100       SANDWICHES.
200       AKOH, H.; SHINOKI, F.; TAKAHASHI, M.; TAKADA, S.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.79-86, REF.16
350       ISSN 0366-9092, CODEN DESIA7
400       THE AUTHORS HAVE FABRICATED S-N-S JOSEPHSON JUNCTIONS WHICH CONSIST
400       OF Y-BA-CU-O/AU/NB THIN FILM SANDWICHES WITH VARIOUS THICKNESSES OF
400       AU BARRIER. DUE TO THE AC-JOSEPHSON EFFECT, THE SHAPIRO STEPS ARE
400       OBSERVED IN THE S-N-S JUNCTIONS UNDER MICROWAVE RADIATION. THE
400       MAGNETIC FIELD DEPENDENCE OF THE CRITICAL CURRENT SHOWS THAT THE
400       JUNCTIONS BEHAVE AS SELF-FIELD LIMITED JOSEPHSON JUNCTIONS. IN
400       ADDITION, FROM THE TEMPERATURE DEPENDENCE OF THE CRITICAL CURRENT
400       NEAR THE TRANSITION TEMPERATURE OF THE JUNCTIONS, IT IS FOUND THAT
400       THE THICKNESS OF AU BARRIER IS SHORTER THAN THE COHERENCE LENGTH OF
400       AU.
500       BARIUM COMPOUNDS; CRITICAL CURRENTS; GOLD; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; JOSEPHSON EFFECT; NIOBIUM; SUPERCONDUCTING THIN
500       FILMS; SUPERCONDUCTING TRANSITION TEMPERATURE; TYPE II
500       SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; BARRIER THICKNESS; S-N-S
510       JOSEPHSON JUNCTIONS; THIN FILM SANDWICHES; AC-JOSEPHSON EFFECT;
510       SHAPIRO STEPS; MICROWAVE RADIATION; MAGNETIC FIELD DEPENDENCE;
510       CRITICAL CURRENT; SELF-FIELD LIMITED JOSEPHSON JUNCTIONS; TEMPERATURE
510       DEPENDENCE; TRANSITION TEMPERATURE; COHERENCE LENGTH.

DOCUMENT=            1767
 AUTH     = MAEKAWA
 DT       = 02
 KN       = B40891500394
 LG       = JAPA
 SN       = ISSN 0366-9092
 YR       = 89
000       3399978
002       B40891500394
010       JOURNAL PAPER; THEORETICAL.
100       TOWARD SUPERCONDUCTORS WITH HIGHER CRITICAL TEMPERATURES.
200       MAEKAWA, S.
310       BULL. ELECTROTECH. LAB. (JAPAN)
330       1989. VOL.53, NO.2, P.87-100, REF.0. (IN JAPANESE)
350       ISSN 0366-9092, CODEN DESIA7
400       SEVERAL VIEWPOINTS TOWARD MATERIAL DESIGN OF SUPERCONDUCTORS WITH
400       HIGHER CRITICAL TEMPERATURES ARE POINTED OUT, IN WHICH TWO DIFFERENT
400       CONCEPTS SUCH AS 'MACROSCOPIC AND MICROSCOPIC', 'NONLOCAL AND LOCAL',
400       'EQUILIBRIUM AND NONEQUILIBRIUM', 'RANDOMNESS AND REGULARITY' ARE
400       EQUALLY IMPORTANT.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; LOCAL PROPERTIES; NONLOCAL
510       PROPERTIES; MICROSCOPIC PROPERTIES; MACROSCOPIC PROPERTIES; MATERIAL
510       DESIGN; SUPERCONDUCTORS; HIGHER CRITICAL TEMPERATURES; EQUILIBRIUM;
510       NONEQUILIBRIUM; RANDOMNESS; REGULARITY.

DOCUMENT=            1768
 AUTH     = OLEKHNOV
 DT       = 02
 KN       = B40891500460
 LG       = ENGL
 SN       = ISSN 0232-1300
 YR       = 89
000       3400044
002       B40891500460
010       JOURNAL PAPER; EXPERIMENTAL.
100       TEMPERATURE VARIATION OF THE STRUCTURAL AND THERMAL CHARACTERISTICS
100       OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ IN THE RANGE FROM 90 TO 400 K.
200       OLEKHNOVICH, N.M.; ZHABKO, T.E.; ORLOVA, N.S.; PASHKOVSKII, O.I.;
200       YANOVICH, V.D.; MYALDUN, A.Z.
220       INST. OF PHYS. OF SOLIDS ? SEMICOND., BYELORUSSIAN ACAD. OF SCI.,
220       MINSK, BYELORUSSIAN SSR, USSR
310       CRYST. RES. TECHNOL. (EAST GERMANY)
330       MARCH 1989. VOL.24, NO.3, P.341-7, REF.18
350       ISSN 0232-1300, CODEN CRTEDF
400       THE X-RAY STUDIES OF THE TETRAGONAL YBA/SUB 2/CU/SUB 3/O/SUB 7-X/
400       COMPOUND ARE PERFORMED AT DIFFERENT TEMPERATURES FROM 400 TO 90 K AND
400       THE TEMPERATURE VARIATION OF THE THERMAL EXPANSION COEFFICIENTS AND
400       THE DEBYE CHARACTERISTIC TEMPERATURE IS DETERMINED. THE ANISOTROPY OF
400       THERMAL EXPANSION IS INVESTIGATED. IT IS FOUND THAT THE TWO DYNAMICAL
400       CHARACTERISTICS MONOTONOUSLY DECREASE WITH TEMPERATURE LOWERING
400       WHEREAS FOR THE SUPERCONDUCTING ORTHORHOMBIC MODIFICATION THEIR
400       TEMPERATURE DEPENDENCES ARE ANOMALOUS. THE MEAN THERMAL EXPANSION
400       COEFFICIENT AS WELL AS THE OVERALL DEBYE TEMPERATURE FOR THE
400       TETRAGONAL PHASE ARE SMALLER THAN THOSE FOR THE ORTHORHOMBIC ONE.
500       BARIUM COMPOUNDS; DEBYE TEMPERATURE; DEBYE-WALLER FACTORS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LATTICE CONSTANTS; THERMAL
500       EXPANSION; X-RAY DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; STRUCTURAL CHARACTERISTICS; LATTICE
510       PARAMETERS; UNIT CELL VOLUME; DEBYE WALLER FACTOR; THERMAL
510       CHARACTERISTICS; X-RAY STUDIES; TETRAGONAL; TEMPERATURE VARIATION;
510       THERMAL EXPANSION COEFFICIENTS; DEBYE CHARACTERISTIC TEMPERATURE;
510       ANISOTROPY; DYNAMICAL CHARACTERISTICS; SUPERCONDUCTING ORTHORHOMBIC
510       MODIFICATION; TETRAGONAL PHASE; 90 TO 400 K; YBA/SUB 2/CU/SUB 3/O/SUB
510       7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 9.0 E+01 TO 4.0 E+02 K.

DOCUMENT=            1769
 AUTH     = SCHOLCH
 DT       = 02
 KN       = B40891500510
 LG       = ENGL
 SN       = ISSN 0721-7250
 YR       = 89
000       3400094
002       B40891500510
010       JOURNAL PAPER; EXPERIMENTAL.
100       PRODUCTION OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ SUPERCONDUCTING THIN
100       FILMS BY PULSED PSEUDOSPARK ELECTRON BEAM EVAPORATION.
200       SCHOLCH, H.P.; FICKENSCHER, P.; REDEL, T.; STETTER, M.;
200       SAEMANN-ISCHENKO, G.; BENKER, W.; HARTMANN, W.; FRANK, K.;
200       CHRISTIANSEN, J.
220       PHYS. INST., ERLANGEN-NURNBERG UNIV., WEST GERMANY
310       APPL. PHYS. A, SOLIDS SURF. (WEST GERMANY)
330       APRIL 1989. VOL.A48, NO.4, P.397-400, REF.15
350       ISSN 0721-7250, CODEN APSFDB
400       THIN-FILM SUPERCONDUCTING YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ LAYERS HAVE
400       BEEN PRODUCED IN A SINGLE-STEP PROCESS BY PULSED ELECTRON BEAM
400       EVAPORATION FROM A STOICHIOMETRIC 1-2-3 TARGET. THE FILMS WERE
400       PRODUCED AT THE (100) SURFACE OF SRTIO/SUB 3/ SUBSTRATES HEATED TO A
400       TEMPERATURE OF APPROXIMATELY 1000 K IN A PURE OXYGEN ATMOSPHERE OF
400       ABOUT 10 PA TOTAL PRESSURE. AFTER DEPOSITION THE FILMS WERE COOLED IN
400       SITU WITHIN 20 MINUTES TO AMBIENT TEMPERATURE. AT PRESENT, THE FILMS
400       ARE POLYCRYSTALLINE AND SHOW A T/SUB C,ZERO/ OF 83 K WITH A
400       TRANSITION WIDTH OF 3-5 K. CRITICAL CURRENT DENSITIES OF 7.10/SUP 4/
400       A/CM/SUP 2/ AT 4.2 K AND ZERO MAGNETIC FIELD HAVE BEEN ACHIEVED. THE
400       PULSED ELECTRON BEAMS USED IN THESE EXPERIMENTS ARE PRODUCED BY A
400       PSEUDOSPARK DISCHARGE; THE ESTIMATED ENERGY DENSITY DEPOSITED AT THE
400       TARGET SURFACE BY THE ELECTRON BEAM IS OF THE ORDER OF 4 J/CM/SUP 2/.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       ELECTRON BEAM DEPOSITION; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SUPERCONDUCTING THIN FILMS; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       YTTRIUM COMPOUNDS.
510       CRITICAL TEMPERATURE; CRITICAL CURRENT DENSITIES; HIGH TEMPERATURE
510       SUPERCONDUCTOR; SUPERCONDUCTING THIN FILMS; PULSED ELECTRON BEAM
510       EVAPORATION; POLYCRYSTALLINE; PSEUDOSPARK DISCHARGE; 83 K; YBA/SUB
510       2/CU/SUB 3/O/SUB 7-X/; SRTIO/SUB 3/ SUBSTRATES.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; SRTIO3/SUR TIO3/SUR
550       O3/SUR SR/SUR TI/SUR O/SUR SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS.
560       TEMPERATURE 8.3 E+01 K.

DOCUMENT=            1770
 AUTH     = BRASS
 DT       = 02
 KN       = B40891500511
 LG       = ENGL
 SN       = ISSN 0721-7250
 YR       = 89
000       3400095
002       B40891500511
010       JOURNAL PAPER; EXPERIMENTAL.
100       THE EFFECT OF OXYGEN ORDERING THROUGH CONTROLLED EXPOSURE TO OXYGEN
100       ON THE SUPERCONDUCTIVE PROPERTIES OF LABA/SUB 2/CU/SUB 3/O/SUB Y/.
200       BRASS, S.G.; GHANDEHARI, M.H.
220       UNOCAL SCI. ? TECHNOL. DIV., BREA, CA, USA
310       APPL. PHYS. A, SOLIDS SURF. (WEST GERMANY)
330       APRIL 1989. VOL.A48, NO.4, P.401-4, REF.12
350       ISSN 0721-7250, CODEN APSFDB
400       IN AN EFFORT TO CLARIFY THE ROLE OF CONTROLLED OXYGEN EXPOSURE IN THE
400       SYNTHESIS OF LABA/SUB 2/CU/SUB 3/O/SUB Y/ SAMPLES WHICH ACHIEVE ZERO
400       RESISTIVITY ABOVE 90 K, THE AUTHORS HAVE PREPARED SAMPLES OF LA/SUB
400       (1+X)/BA/SUB (2-X)/CU/SUB 3/O/SUB Y/ WITH X APPROXIMATELY EQUAL TO 0
400       AND WITH Y VARYING BETWEEN 6.22 AND 7.00. THEY FIND THAT FOR LARGE
400       VALUES OF Y, 6.88<Y<7.00, THE VALUE OF THE SUPERCONDUCTIVE CRITICAL
400       TEMPERATURE IS STRONGLY DEPENDENT ON SYNTHETIC CONDITIONS. SYNTHETIC
400       CONDITIONS PROMOTING ORTHORHOMBIC CRYSTAL STRUCTURES CONSISTENT WITH
400       OXYGEN ORDERING IN THE BASAL PLANES OF THE CRYSTAL PRODUCE MATERIALS
400       WITH THE HIGHEST VALUES OF THE ZERO-RESISTANCE TEMPERATURE.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM
500       COMPOUNDS; SUPERCONDUCTING TRANSITION TEMPERATURE.
510       SYNTHESIS; COMPOSITION; HIGH TEMPERATURE SUPERCONDUCTOR; OXYGEN
510       ORDERING; SUPERCONDUCTIVE CRITICAL TEMPERATURE; ORTHORHOMBIC CRYSTAL
510       STRUCTURES; ZERO-RESISTANCE TEMPERATURE; 90 K; LABA/SUB 2/CU/SUB
510       3/O/SUB Y/; O/SUB 2/ EXPOSURE.
550       O2/EL O/EL; LABA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS LA/SS O/SS.
560       TEMPERATURE 9.0 E+01 K.

DOCUMENT=            1771
 AUTH     = BALIGA
 DT       = 02
 KN       = B40891500512
 LG       = ENGL
 SN       = ISSN 0721-7250
 YR       = 89
000       3400096
002       B40891500512
010       JOURNAL PAPER; EXPERIMENTAL.
100       EFFECT OF COMPOSITIONAL VARIATION ON THE PROPERTIES OF Y-BA-CU-O
100       COMPOUNDS.
200       BALIGA, S.; JAIN, A.L.
220       INFRARED/ELECTRO-OPT. RES. LAB., SERVO CORP. OF AMERICA, HICKSVILLE,
220       NY, USA
310       APPL. PHYS. A, SOLIDS SURF. (WEST GERMANY)
330       MAY 1989. VOL.A48, NO.5, P.419-22, REF.17
350       ISSN 0721-7250, CODEN APSFDB
400       SINGLE PHASE YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / AS WELL AS
400       MULTI-PHASE COMPOSITIONS OF THE Y-BA-CU-O SYSTEM HAVE BEEN PREPARED
400       BY CERAMIC TECHNIQUES. THE EFFECTS OF THE ADDITIONAL PHASES ON THE
400       SUPERCONDUCTING TRANSITION AND NORMAL STATE PROPERTIES HAVE BEEN
400       INVESTIGATED. MEASUREMENTS SHOW THAT WHILE THE TRANSITION TEMPERATURE
400       IS NOT EFFECTED, GRAIN GROWTH, RESISTIVITY AND UNIT CELL VOLUME OF
400       THE '123' PHASE ARE DEPENDENT ON THE PRESENCE OF MULTI PHASES. THE
400       OBSERVED CHANGES IN CELL VOLUME AND RESISTIVITY CAN BOTH BE EXPLAINED
400       BY A CHANGE IN THE OXYGEN CONCENTRATION DELTA IN THE RANGE 0 TO 0.15.
500       BARIUM COMPOUNDS; CERAMICS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; GRAIN GROWTH; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SINGLE PHASE; O CONCENTRATION;
510       COMPOSITIONAL VARIATION; PROPERTIES; MULTI-PHASE COMPOSITIONS;
510       CERAMIC; SUPERCONDUCTING TRANSITION; NORMAL STATE PROPERTIES; GRAIN
510       GROWTH; RESISTIVITY; UNIT CELL VOLUME; Y-BA-CU-O; YBA/SUB 2/CU/SUB
510       3/O/SUB 7- DELTA /.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS; YBA2CU3O/SS BA2/SS CU3/SS BA/SS
550       CU/SS O/SS Y/SS.

DOCUMENT=            1772
 AUTH     = KARTHIKE
 DT       = 02
 KN       = B40891500513
 LG       = ENGL
 SN       = ISSN 0721-7250
 YR       = 89
000       3400097
002       B40891500513
010       JOURNAL PAPER; EXPERIMENTAL.
100       EFFECT OF PROCESS PARAMETERS ON THE PROPERTIES OF PLASMA-SPRAYED
100       SUPERCONDUCTING Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/ COATINGS.
200       KARTHIKEYAN, J.; SREEKUMAR, K.P.; VENKATRAMANI, N. / KURUP, M.B.;
200       PATIL, D.S.; ROHATGI, V.K.
220       DIV. OF PLASMA PHYS., BHABHA ATOMIC RES. CENTRE, BOMBAY, INDIA
310       APPL. PHYS. A, SOLIDS SURF. (WEST GERMANY)
330       MAY 1989. VOL.A48, NO.5, P.489-92, REF.13
350       ISSN 0721-7250, CODEN APSFDB
400       A STUDY ON THE EFFECT OF POWDER, SPRAY AND COATING PARAMETERS ON
400       SUPERCONDUCTING PROPERTIES OF PLASMA-SPRAYED Y/SUB 1/BA/SUB 2/CU/SUB
400       3/O/SUB 7-X/ COATINGS HAS BEEN CARRIED OUT. OPTIMISED SPRAY
400       PARAMETERS TO YIELD STRONG, ADHERENT AND DENSE COATINGS ON MANY
400       SUBSTRATES INCLUDING AISI 304 SS AND ALUMINA HAVE BEEN OBTAINED.
400       COATINGS SHOW SUPERCONDUCTIVITY AFTER OXYGEN ANNEALING AT 950 DEGREES
400       C FOR AN HOUR. COATINGS THINNER THAN 100 MU M DO NOT SHOW ZERO
400       RESISTIVITY DOWN TO 77 K DUE TO WEAK LINKS BETWEEN GRANULAR
400       SUPERCONDUCTORS. COATINGS PREPARED WITH FINE POWDER HAVE SUPERIOR
400       SUPERCONDUCTING PROPERTIES, VIZ. HIGHER T/SUB C/ AND J/SUB C/ VALUES
400       THAN COARSE POWDER COATINGS. THE CHOICE OF SUBSTRATE MATERIAL
400       STRONGLY AFFECTS THE J/SUB C/ VALUES.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PLASMA ARC SPRAYED COATINGS;
500       SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CRITICAL CURRENT DENSITY; PROCESS
510       PARAMETERS; PLASMA-SPRAYED; COATINGS; SUPERCONDUCTING PROPERTIES;
510       AISI 304 SS; ALUMINA; ANNEALING; ZERO RESISTIVITY; WEAK LINKS;
510       GRANULAR SUPERCONDUCTORS; FINE POWDER; COARSE POWDER COATINGS;
510       SUBSTRATE MATERIAL; 950 DEGC; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/;
510       AL/SUB 2/O/SUB 3/; FECRC.
550       AL2O3/SUR AL2/SUR AL/SUR O3/SUR O/SUR AL2O3/BIN AL2/BIN AL/BIN O3/BIN
550       O/BIN; FECRC/SUR CR/SUR FE/SUR C/SUR FECRC/SS CR/SS FE/SS C/SS;
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.
560       TEMPERATURE 1.22 E+03 K.

DOCUMENT=            1773
 AUTH     = LENGFELL
 DT       = 02
 KN       = B40891500514
 LG       = ENGL
 SN       = ISSN 0721-7250
 YR       = 89
000       3400098
002       B40891500514
010       JOURNAL PAPER; EXPERIMENTAL.
100       PREPARATION OF TL-BA-CA-CU-O THIN FILMS BY DIFFUSION OF TL INTO LASER
100       EVAPORATED BA/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB X/ FILMS.
200       LENGFELLNER, H.; BETZ, J.; RENK, K.F.
220       FAKULTAT PHYS., REGENSBURG UNIV., WEST GERMANY
310       APPL. PHYS. A, SOLIDS SURF. (WEST GERMANY)
330       MAY 1989. VOL.A48, NO.5, P.501-2, REF.7
350       ISSN 0721-7250, CODEN APSFDB
400       PREPARATION OF SUPERCONDUCTING TL-BA-CA-CU-O THIN FILMS BY DIFFUSION
400       OF TL INTO LASER EVAPORATED BA/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB X/ THIN
400       FILMS IS REPORTED. FROM A SINTERED BA/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB
400       X/ BULK SAMPLE THE AUTHORS PREPARED USING A PULSED ND:YAG LASER,
400       BA-CA-CU-O THIN FILMS ON SAPPHIRE AND SRTIO/SUB 3/ SINGLE-CRYSTAL
400       SUBSTRATES. SUBSEQUENTLY THE FILMS WERE LOADED WITH TL BY
400       SIMULTANEOUSLY ANNEALING THE FILMS TOGETHER WITH A SINTERED TL/SUB
400       2/BA/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB 10/ SAMPLE BOTH ENCLOSED IN A
400       SMALL STAINLESS STEEL BOX, IN THE AUTHORS PROCEDURE TL CONTAMINATION
400       WAS REDUCED TO A MINIMUM. T/SUB C/ VALUES NEAR 100 K AND CRITICAL
400       CURRENTS OF 5.10/SUP 3/ A/CM/SUP 2/ AT 77 K WERE OBTAINED.
500       ANNEALING; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL CURRENTS;
500       DIFFUSION IN SOLIDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SUPERCONDUCTING THIN FILMS; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       THALLIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; PREPARATION SAPPHIRE SUBSTRATE;
510       SUPERCONDUCTING TRANSITION TEMPERATURE; DIFFUSION; ANNEALING;
510       STAINLESS STEEL BOX; TL CONTAMINATION; CRITICAL CURRENTS; 100 K;
510       TL-BA-CA-CU-O THIN FILMS; LASER EVAPORATED BA/SUB 2/CA/SUB 2/CU/SUB
510       3/O/SUB X/ FILMS; SRTIO/SUB 3/; AL/SUB 2/O/SUB 3/.
550       AL2O3/SUR AL2/SUR AL/SUR O3/SUR O/SUR AL2O3/BIN AL2/BIN AL/BIN O3/BIN
550       O/BIN; TLBACACUO/SS BA/SS CA/SS CU/SS TL/SS O/SS; BA2CA2CU3O/SS
550       BA2/SS CA2/SS CU3/SS BA/SS CA/SS CU/SS O/SS; SRTIO3/SUR TIO3/SUR
550       O3/SUR SR/SUR TI/SUR O/SUR SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS.
560       TEMPERATURE 1.0 E+02 K.

DOCUMENT=            1774
 AUTH     = CHANDRA
 DT       = 02
 KN       = B40891500515
 LG       = ENGL
 SN       = ISSN 0250-6327
 YR       = 88
000       3400099
002       B40891500515
010       JOURNAL PAPER; EXPERIMENTAL.
100       PREPARATION OF SINGLE CRYSTALS OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/
100       NONSTOICHIOMETRIC MELTS.
200       CHANDRA SHEKAR, N.V.; SURESH, J.; GOVINDA RAJAN, K.; RAO, G.V.N.
220       INDIRA GANDHI CENTRE FOR ATOMIC RES., KALPAKKAM, INDIA
310       BULL. MATER. SCI. (INDIA)
330       DEC. 1988. VOL.11, NO.4, P.277-80, REF.10
350       ISSN 0250-6327, CODEN BUMSDW
400       STUDIES ON THE SINGLE CRYSTAL GROWTH OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/
400       SHOW THAT THE GROWTH CONDITIONS HAVE NOT BEEN OPTIMISED YET AND THEY
400       VARY IN MANY WAYS. HERE THE AUTHORS REPORT THE GROWTH OF SINGLE
400       CRYSTALS OF YBCO IN THE SIZE RANGE 0.5-1.2 MM FROM NONSTOICHIOMETRIC
400       MELTS. THEY HAVE MADE SYSTEMATIC VARIATIONS IN THE FLUX COMPOSITION
400       (CONSTITUTING CUO AND BACO/SUB 3/) IN ORDER TO ARRIVE AT A OPTIMUM
400       COMPOSITION FOR CONSISTENTLY GETTING SINGLE CRYSTALS OF SIZE 0.5-1.2
400       MM. THE TETRAGONAL PHASE WAS CONFIRMED BY X-RAY DIFFRACTION AND
400       SINGLE CRYSTALLINITY BY THE LAUE TECHNIQUE. SUPERCONDUCTIVITY WAS
400       CONFIRMED IN OXYGEN-ANNEALED CRYSTALS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; PREPARATION; SINGLE CRYSTALS;
510       NONSTOICHIOMETRIC MELTS; CRYSTAL GROWTH; FLUX COMPOSITION; OPTIMUM
510       COMPOSITION; TETRAGONAL PHASE; X-RAY DIFFRACTION; SINGLE
510       CRYSTALLINITY; LAUE TECHNIQUE; ANNEALED CRYSTALS; 0.5 TO 1.2 MM;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       SIZE 5.0 E-04 TO 1.2 E-03 M.

DOCUMENT=            1775
 AUTH     = DUH
 DT       = 02
 KN       = B40891500562
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 88
000       3400146
002       B40891500562
010       JOURNAL PAPER; EXPERIMENTAL.
100       WETTABILITY IN ZRO/SUB 2/-NI AND ZRO/SUB 2/-CU BONDING.
200       DUH, J.; CHIEN, W.S. / CHIOU, B.S.
220       DEPT. OF MATER. SCI. ? ENG., NAT. TSING HUA UNIV., HSINCHU, TAIWAN
310       J. MATER. SCI. LETT. (UK)
330       APRIL 1988. VOL.8, NO.4, P.405-8, REF.13
350       ISSN 0261-8028, CODEN JMSLD5
400       THE WETTING WAS STUDIED BY YTTRIA-STABILIZED ZIRCONIA WITH THE PURE
400       METALS NICKEL AND COPPER. THE METALS EXHIBITED POOR WETTING ON THE
400       YTTRIA-STABILIZED ZIRCONIA SUBSTRATE. A CERIA-CONTAINING ZIRCONIA, 3
400       MOL.% Y/SUB 2/O/SUB 2/-10 MOL.% CEO/SUB 2/-ZRO/SUB 2/, WAS FOUND TO
400       BE ACTIVE IN PROMOTING WETTING BY THE METAL COPPER. THE YSZ-NI
400       ASSEMBLY REVEALED MUCH HIGHER BONDING THAN YSZ-CU, WHICH IS
400       ATTRIBUTED TO THE BETTER THERMAL COMPATIBILITY BETWEEN YSZ AND
400       NICKEL.
500       ADHESION; CERAMICS; COPPER; NICKEL; WETTING; ZIRCONIUM COMPOUNDS.
510       WETTING; BONDING; THERMAL COMPATIBILITY; ZRO/SUB 2/-NI; ZRO/SUB 2/-CU
510       BONDING; Y/SUB 2/O/SUB 3/ STABILIZED ZRO/SUB 2/; CEO/SUB 2/-ZRO/SUB
510       2/.
550       Y2O3ZRO2/SUR O2/SUR O3/SUR Y2/SUR ZR/SUR O/SUR Y/SUR Y2O3ZRO2/SS
550       O2/SS O3/SS Y2/SS ZR/SS O/SS Y/SS; CEO2ZRO2/SUR CE/SUR O2/SUR ZR/SUR
550       O/SUR CEO2ZRO2/SS CE/SS O2/SS ZR/SS O/SS; ZRO2-NI/INT ZRO2/INT NI/INT
550       O2/INT ZR/INT O/INT ZRO2/BIN O2/BIN ZR/BIN O/BIN NI/EL; ZRO2-CU/INT
550       ZRO2/INT CU/INT O2/INT ZR/INT O/INT ZRO2/BIN O2/BIN ZR/BIN O/BIN
550       CU/EL.

DOCUMENT=            1776
 AUTH     = BOSI
 DT       = 02
 KN       = B40891500577
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 89
000       3400161
002       B40891500577
010       JOURNAL PAPER; EXPERIMENTAL.
100       LARGE SINGLE CRYSTALS OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
100       SUPERCONDUCTORS FROM CHLORIDE FLUXES.
200       BOSI, S.; PUZZER, T.; RUSSELL, G.J.; TOWN, S.L.; TAYLOR, K.N.R.
220       SCH. OF PHYS., NEW SOUTH WALES UNIV., KENSINGTON, NSW, AUSTRALIA
310       J. MATER. SCI. LETT. (UK)
330       MAY 1989. VOL.8, NO.5, P.497-500, REF.6
350       ISSN 0261-8028, CODEN JMSLD5
400       THE AUTHORS APPLY THE TECHNIQUE OF MOLTEN SALT SYNTHESIS TO THE
400       GROWTH OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / CRYSTALS, USING
400       CHLORIDE FLUXES. X-RAY DIFFRACTION AND SEM ANALYSIS ARE USED TO
400       DETERMINE THE STRUCTURE AND COMPOSITION OF THE CRYSTALS.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       CRYSTAL GROWTH FROM MELT; HIGH-TEMPERATURE SUPERCONDUCTORS; SCANNING
500       ELECTRON MICROSCOPE EXAMINATION OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; CHLORIDE FLUXES; MOLTEN SALT
510       SYNTHESIS; X-RAY DIFFRACTION; SEM; STRUCTURE; COMPOSITION; YBA/SUB
510       2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1777
 AUTH     = SUDARSAN
 DT       = 02
 KN       = B40891500578
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 89
000       3400162
002       B40891500578
010       JOURNAL PAPER; EXPERIMENTAL.
100       LASER-INDUCED SELECTIVE ETCHING OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/
100       FILMS.
200       SUDARSAN, U.; CODY, N.W.; SOLANKI, R.
220       DEPT. OF APPL. PHYS. ? ELECTR. ENG., OREGON GRADUATE CENTER,
220       BEAVERTON, OR, USA
310       J. MATER. SCI. LETT. (UK)
330       MAY 1989. VOL.8, NO.5, P.501-2, REF.7
350       ISSN 0261-8028, CODEN JMSLD5
400       THE AUTHORS HAVE EXAMINED THE USE OF FOCUSED ARGON-ION LASER BEAMS TO
400       ETCH PATTERNS SELECTIVELY IN YBACUO FILMS. SHARP ETCHED PROFILES WITH
400       HIGH ASPECT RATIOS WERE OBTAINED UNDER A VACUUM ENVIRONMENT. ALTHOUGH
400       THE THROUGHPUT OF SUCH AN ETCHING PROCESS WOULD BE LOW FOR INDUSTRIAL
400       APPLICATIONS, IT CAN BE USED FOR TRIMMING YBACUO MICROSTRUCTURES
400       OBTAINED VIA LITHOGRAPHY OR LIFT-OFF TECHNIQUES, HENCE INCREASING THE
400       YIELD.
500       BARIUM COMPOUNDS; ETCHING; HIGH-TEMPERATURE SUPERCONDUCTORS; LASER
500       BEAM APPLICATIONS; SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; FOCUSSED AR-ION LASER BEAMS;
510       SELECTIVE ETCHING; FILMS; VACUUM ENVIRONMENT; YBA/SUB 2/CU/SUB
510       3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1778
 AUTH     = NISHI
 DT       = 02
 KN       = B40891500579
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 89
000       3400163
002       B40891500579
010       JOURNAL PAPER; EXPERIMENTAL.
100       COOLING RATE DEPENDENCE OF J/SUB C/ IN HIGH-T/SUB C/ YBA/SUB 2/CU/SUB
100       3/O/SUB 7-Y/.
200       NISHI, Y.; KITA, Y.; IGARASHI, A.; TOKUNAGA, S.
220       DEPT. OF MATER. SCI., TOKAI UNIV., KANAGAWA, JAPAN
310       J. MATER. SCI. LETT. (UK)
330       MAY 1989. VOL.8, NO.5, P.503-4, REF.9
350       ISSN 0261-8028, CODEN JMSLD5
400       SAMPLES WITH NOMINAL COMPOSITION YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/ WERE
400       PREPARED FROM HIGH-PURITY POWDERS OF CUO, BACO/SUB 3/ AND Y/SUB
400       2/O/SUB 3/. THE POWDERS WERE MIXED AND REACTED AT 1200 K IN AIR FOR 2
400       H AND THEN AIR-COOLED. AFTER CRUSHING, PELLETIZED TABLETS 1 MM THICK
400       AND 13 MM DIAMETER WERE SINTERED IN AIR AT 1200 K FOR 8 H AND
400       FURNACE-COOLED AT VARIOUS COOLING RATES. THE SUPERCONDUCTING CRITICAL
400       CURRENT J/SUB C/ UNDER EARTH FIELD WAS DETERMINED BY ELECTRICAL
400       RESISTIVITY MEASUREMENT. THE STRUCTURE OF THE SAMPLE WAS EXAMINED BY
400       MEANS OF X-RAY DIFFRACTION.
500       BARIUM COMPOUNDS; CRITICAL CURRENTS; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; CRITICAL CURRENT; ELECTRICAL
510       RESISTIVITY; STRUCTURE; X-RAY DIFFRACTION; YBA/SUB 2/CU/SUB 3/O/SUB
510       7-Y/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1779
 AUTH     = KOMATSU
 DT       = 02
 KN       = B40891500580
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 89
000       3400164
002       B40891500580
010       JOURNAL PAPER; EXPERIMENTAL.
100       DISCRIMINATION BETWEEN TOPOGRAPHIC AND OPTIONALLY ANISOTROPIC
100       FEATURES IN HIGH T/SUB C/ SUPERCONDUCTING CRYSTALS.
200       KOMATSU, H.; HAYASHI, S.; OHNO, T.; INOUE, T.
220       INST. FOR MATER. RES., TOHOKU UNIV., SENDAI, JAPAN
310       J. MATER. SCI. LETT. (UK)
330       MAY 1989. VOL.8, NO.5, P.505-6, REF.5
350       ISSN 0261-8028, CODEN JMSLD5
400       THE AUTHORS REPORT A TECHNIQUE FOR SEPARATING SURFACE TOPOGRAPHIC
400       IMAGES FROM OPTICALLY ANISOTROPIC ONES, USING RESULTS FROM MICROSCOPY
400       OF ERBA/SUB 2/CU/SUB 3/O/SUB Y/ TO ILLUSTRATE THEIR IDEAS. THEY SHOW
400       THAT ANALYSIS OF A SAMPLE BY BOTH POLARISING AND NONPOLARISING
400       MICROSCOPES IS NECESSARY FOR THE STUDY OF GROWTH AND PHASE
400       TRANSFORMATIONS IN CRYSTALS.
500       BARIUM COMPOUNDS; ERBIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       OPTICAL MICROSCOPY; SURFACE STRUCTURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; POLARISING MICROSCOPE; OPTIONALLY
510       ANISOTROPIC FEATURES; SURFACE TOPOGRAPHIC IMAGES; NONPOLARISING
510       MICROSCOPES; GROWTH; PHASE TRANSFORMATIONS; ERBA/SUB 2/CU/SUB 3/O/SUB
510       Y/.
550       ERBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS ER/SS O/SS.

DOCUMENT=            1780
 AUTH     = NISHI
 DT       = 02
 KN       = B40891500581
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 89
000       3400165
002       B40891500581
010       JOURNAL PAPER; EXPERIMENTAL.
100       BRITTLENESS OF LIQUID-QUENCHED HIGH-T/SUB C/ BISRCACU/SUB 2/O/SUB X/.
200       NISHI, Y.; NINOMIYA, N.; MORIYA, S.; KANAI, F.; TACHIKAWA, K.
220       DEPT. OF MATER. SCI., TOKAI UNIV., HIRATSUKA, JAPAN
310       J. MATER. SCI. LETT. (UK)
330       MAY 1989. VOL.8, NO.5, P.507-8, REF.13
350       ISSN 0261-8028, CODEN JMSLD5
400       THE AUTHORS OBTAIN INFORMATION ABOUT THE CRITICAL FRACTURE STRESS
400       (P/SUB F/) AND THE CRITICAL FRACTURE STRAIN (D/SUB F/) IN THE
400       RELATIONSHIP BETWEEN THE LOAD (STRESS; P) AND THE SIZE (STRAIN; D) OF
400       THE PYRAMIDAL HOLE OF HIGH-T/SUB C/ LIQUID-QUENCHED BISRCACU/SUB
400       2/O/SUB X/. FURTHERMORE, THE DEFORMATION ENERGY IS EVALUATED ON
400       FRACTURE.
500       BISMUTH COMPOUNDS; BRITTLENESS; CALCIUM COMPOUNDS; DEFORMATION;
500       FRACTURE; HIGH-TEMPERATURE SUPERCONDUCTORS; STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; BRITTLENESS; CRITICAL FRACTURE
510       STRESS; CRITICAL FRACTURE STRAIN; LIQUID-QUENCHED; DEFORMATION
510       ENERGY; BISRCACU/SUB 2/O/SUB X/.
550       BISRCACU2O/SS CU2/SS BI/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1781
 AUTH     = SANDU
 DT       = 02
 KN       = B40891500582
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 89
000       3400166
002       B40891500582
010       JOURNAL PAPER; EXPERIMENTAL.
100       TEA-CO/SUB 2/ LASER-DEPOSITED YBA/SUB 2/CU/SUB 3/O/SUB 7/
100       SUPERCONDUCTING THIN FILMS.
200       SANDU, V.; CRISAN, A.; GRIGORESCU, D.; MIU, L.; CHIS, I.; ALDICA, G.;
200       CRUCEANU, E.; GRIGORIU, C.; DRAGULINESCU, D.
220       CENTRAL INST. OF PHYS. ? TECHNOL. OF MATER., BUCHAREST, ROMANIA
310       J. MATER. SCI. LETT. (UK)
330       MAY 1989. VOL.8, NO.5, P.509-10, REF.6
350       ISSN 0261-8028, CODEN JMSLD5
400       THE AUTHORS REPORT THE PREPARATION OF SUPERCONDUCTING THIN FILMS OF
400       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ FROM A STOICHIOMETRIC TARGET BY
400       TEA-CO/SUB 2/ LASER EVAPORATION ON TO ALPHA -AL/SUB 2/O/SUB 3/ AND
400       SAPPHIRE SUBSTRATES. DURING THE DEPOSITION PROCESS THE DECOMPOSITION
400       OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ INTO OXIDES OF YTTRIUM, BARIUM AND
400       COPPER TAKES PLACE. THE YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ SUPERCONDUCTING
400       PHASE BEGINS TO GROW AT 600 DEGREES C BUT BECOMES PREDOMINANT ONLY
400       ABOVE 800 DEGREES C. SHORTER ANNEALING TIMES AT 950 DEGREES C PREVENT
400       THE REACTION WITH THE SUBSTRATE.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING
500       THIN FILMS; VAPOUR DEPOSITION; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; THIN FILMS; TEA-CO/SUB 2/ LASER
510       EVAPORATION; ANNEALING; YBA/SUB 2/CU/SUB 3/O/SUB 7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1782
 AUTH     = HWANG
 DT       = 02
 KN       = B40891500583
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 89
000       3400167
002       B40891500583
010       JOURNAL PAPER; EXPERIMENTAL.
100       RECOVERY OF SUPERCONDUCTIVITY IN WATER-DECOMPOSED Y-BA-CU-O
100       SUPERCONDUCTORS BY REHEATING.
200       HWANG, N.M.; BAHNG, G.W.; PARK, Y.K.; PARK, J.C.; MOON, H.G. / YOON,
200       D.N.
220       KOREA STAND. RES. INST., CH'UNGNAM, SOUTH KOREA
310       J. MATER. SCI. LETT. (UK)
330       MAY 1989. VOL.8, NO.5, P.517-19, REF.10
350       ISSN 0261-8028, CODEN JMSLD5
400       THE AUTHORS CONSIDER THE POSSIBILITY OF RECOVERING THE
400       SUPERCONDUCTING PHASE OF YBACUO AFTER IT HAS DECOMPOSED INTO SEPARATE
400       COMPONENTS DUE TO WATER ATTACK. BY REHEATING THE DECOMPOSITION
400       PRODUCTS AT 930 DEGREES C FOR 6 H THEY FIND THAT THE CONVERSION IS
400       KINETICALLY AND DYNAMICALLY POSSIBLE.
500       BARIUM COMPOUNDS; ENVIRONMENTAL DEGRADATION; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING PHASE RECOVERY;
510       WATER-DECOMPOSED; REHEATING; Y-BA-CU-O.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1783
 AUTH     = CHAUDHUR
 DT       = 02
 KN       = B40891500584
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 89
000       3400168
002       B40891500584
010       JOURNAL PAPER; EXPERIMENTAL.
100       PREPARATION OF SUPERCONDUCTING BI/SUB 4/CA/SUB 3/SR/SUB 3/CU/SUB
100       4/O/SUB X/ (4334) THICK FILM BY A RAPID QUENCHING METHOD.
200       CHAUDHURI, B.K.; SOM, K.; SEN GUPTA, S.P.
220       INDIAN ASSOC. FOR THE CULTIVATION OF SCI., CALCUTTA, INDIA
310       J. MATER. SCI. LETT. (UK)
330       MAY 1989. VOL.8, NO.5, P.520-2, REF.12
350       ISSN 0261-8028, CODEN JMSLD5
400       THE AUTHORS REPORT THE PREPARATION OF THICK FILMS OF BI/SUB 4/CA/SUB
400       3/SR/SUB 3/CU/SUB 4/O/SUB X/ BY A RAPID QUENCHING TECHNIQUE
400       PREVIOUSLY USED BY THEM FOR MAKING SEVERAL OXIDE GLASSES (1987).
400       EARLIER TARASCON ET AL. (1988) REPORTED THE SUPERCONDUCTING BEHAVIOUR
400       OF THIS MATERIAL WITH A SUPERCONDUCTING ONSET TRANSITION TEMPERATURE
400       AROUND 105 K.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MATERIALS PREPARATION; STRONTIUM COMPOUNDS; THICK
500       FILMS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; THICK FILM; RAPID QUENCHING;
510       PREPARATION; BI/SUB 4/CA/SUB 3/SR/SUB 3/CU/SUB 4/O/SUB X/.
550       BI4CA3SR3CU4O/SS BI4/SS CA3/SS CU4/SS SR3/SS BI/SS CA/SS CU/SS SR/SS
550       O/SS.

DOCUMENT=            1784
 AUTH     = NISHI
 DT       = 02
 KN       = B40891500585
 LG       = ENGL
 SN       = ISSN 0261-8028
 YR       = 89
000       3400169
002       B40891500585
010       JOURNAL PAPER; EXPERIMENTAL.
100       NEGATIVE RESISTANCE OF HIGH-T/SUB C/ YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/.
200       NISHI, Y.; IGARASHI, A.; KITA, Y.; TOKUNAGA, S.; MORIYA, S.; OKAMOTO,
200       K.
220       DEPT. OF MATER. SCI., TOKAI UNIV., KANAGAWA, JAPAN
310       J. MATER. SCI. LETT. (UK)
330       MAY 1989. VOL.8, NO.5, P.523, REF.10
350       ISSN 0261-8028, CODEN JMSLD5
400       THE CURRENT DEPENDENCE OF ELECTRICAL POTENTIAL (RESISTIVITY) IS
400       INVESTIGATED FOR YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/. NEGATIVE RESISTANCE
400       IS FOUND BELOW THE SUPERCONDUCTING CRITICAL CURRENT DENSITY (J/SUB
400       C/).
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       HIGH-TEMPERATURE SUPERCONDUCTORS; NEGATIVE RESISTANCE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; NEGATIVE RESISTANCE; ELECTRICAL
510       POTENTIAL; CRITICAL CURRENT DENSITY; YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1785
 AUTH     = TIEN
 DT       = 06
 KN       = B40891500703
 LG       = ENGL
 SN       = ISSN 0011-2275
 YR       = 89
000       3400287
002       B40891500703
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MECHANISMS OF LOCAL THERMAL STABILITY IN HIGH TEMPERATURE
100       SUPERCONDUCTORS.
200       TIEN, C.L.; FLIK, M.I.; PHELAN, P.E.
220       DEPT. OF MECH. ENG., CALIFORNIA UNIV., BERKELEY, CA, USA
300       SEMINAR ON BASIC MECHANISMS OF HELIUM HEAT TRANSFER AND RELATED
300       STABILITY OF SUPERCONDUCTING MAGNETS.
305       FUKUOKA, JAPAN.  29 AUG.-2 SEPT. 1988.
310       CRYOGENICS (UK)
330       JUNE 1989. VOL.29, NO.6, P.602-9, REF.22
350       ISSN 0011-2275, CODEN CRYOAX
400       THE IMPACT OF HIGH TEMPERATURE CERAMIC SUPERCONDUCTORS ON THE THERMAL
400       STABILITY OF SUPERCONDUCTING DEVICES IS TWO-FOLD. FIRSTLY, NITROGEN
400       BECOMES THE PROBABLE CRYOGENIC COOLANT AND SECONDLY, THE NEW
400       MATERIALS EXHIBIT THERMOPHYSICAL PROPERTIES DIFFERENT FROM
400       CONVENTIONAL SUPERCONDUCTORS. THE WORK ANALYSES TRANSIENT HEAT
400       TRANSFER TO SUBCOOLED AND SUPERCRITICAL NITROGEN AND COMPARES THE
400       RESULTS TO THOSE FOR HELIUM. AN EXTENSIVE REVIEW OF THE
400       THERMOPHYSICAL PROPERTIES OF YBA/SUB 2/CU/SUB 3/O/SUB 7/ ASSESSES
400       THEIR EFFECT ON THERMAL STABILITY. ANISOTROPIC THERMAL CONDUCTIVITY
400       IS SHOWN TO STRONGLY INFLUENCE THE INTRINSIC THERMAL STABILITY OF A
400       COMPOSITE STRIP SUPERCONDUCTOR.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; THERMODYNAMIC
500       PROPERTIES; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; THERMAL STABILITY; CRYOGENIC
510       COOLANT; THERMOPHYSICAL PROPERTIES; TRANSIENT HEAT TRANSFER; YBA/SUB
510       2/CU/SUB 3/O/SUB 7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1786
 AUTH     = FREDERKI
 DT       = 06
 KN       = B40891500704
 LG       = ENGL
 SN       = ISSN 0011-2275
 YR       = 89
000       3400288
002       B40891500704
010       CONFERENCE PAPER; EXPERIMENTAL.
100       CHARACTERISTIC PARAMETERS OF SUPERCONDUCTOR-COOLANT INTERACTION
100       INCLUDING HIGH T/SUB C/ CURRENT DENSITY LIMITS.
200       FREDERKING, T.H.K.
220       CALIFORNIA UNIV., LOS ANGELES, CA, USA
300       SEMINAR ON BASIC MECHANISMS OF HELIUM HEAT TRANSFER AND RELATED
300       STABILITY OF SUPERCONDUCTING MAGNETS.
305       FUKUOKA, JAPAN.  29 AUG.-2 SEPT. 1988.
310       CRYOGENICS (UK)
330       JUNE 1989. VOL.29, NO.6, P.610-15, REF.16
350       ISSN 0011-2275, CODEN CRYOAX
400       IN THE AREA OF BASIC MECHANISMS OF HELIUM HEAT TRANSFER AND RELATED
400       INFLUENCE ON SUPERCONDUCTING MAGNET STABILITY THERMAL BOUNDARY
400       CONDITIONS ARE IMPORTANT CONSTRAINTS. CHARACTERISTIC LENGTHS ARE
400       CONSIDERED ALONG WITH OTHER PARAMETERS OF THE SUPERCONDUCTING
400       COMPOSITE-COOLANT SYSTEM. BASED ON HELIUM TEMPERATURE RANGE
400       DEVELOPMENTS, LIMITING CRITICAL CURRENT DENSITIES ARE ASSESSED AT LOW
400       FIELDS FOR HIGH TRANSITION TEMPERATURE (T/SUB C/) SUPERCONDUCTORS
400       (HTSC).
500       CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY); HIGH-TEMPERATURE
500       SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES.
510       HIGH TEMPERATURE SUPERCONDUCTORS; HEAT TRANSFER; STABILITY THERMAL
510       BOUNDARY CONDITIONS; SUPERCONDUCTING COMPOSITE-COOLANT SYSTEM;
510       CRITICAL CURRENT DENSITIES.

DOCUMENT=            1787
 AUTH     = NOTO
 DT       = 06
 KN       = B40891500705
 LG       = ENGL
 SN       = ISSN 0011-2275
 YR       = 89
000       3400289
002       B40891500705
010       CONFERENCE PAPER; EXPERIMENTAL.
100       THERMAL CONDUCTIVITY AND CRITICAL CURRENT DENSITY IN HIGH T/SUB C/
100       Y/SUB 1-X/LN/SUB X/BA/SUB 2/CU/SUB 3/O/SUB 7-Y/.
200       NOTO, K. / WATANABE, K.; MORITA, H.; MORI, K.; SASAKAWA, M.; ISIKAWA,
200       Y.; SATO, K.; ISHIHARA, T.; INUKAI, E.; FUJIMORI, H.; MUTO, Y.
220       INST. FOR MATER. RES., TOHOKU UNIV., SENDAI, JAPAN
300       SEMINAR ON BASIC MECHANISMS OF HELIUM HEAT TRANSFER AND RELATED
300       STABILITY OF SUPERCONDUCTING MAGNETS.
305       FUKUOKA, JAPAN.  29 AUG.-2 SEPT. 1988.
310       CRYOGENICS (UK)
330       JUNE 1989. VOL.29, NO.6, P.648-50, REF.3
350       ISSN 0011-2275, CODEN CRYOAX
400       TEMPERATURE DEPENDENCES OF CRITICAL CURRENT DENSITY AND THERMAL
400       CONDUCTIVITY HAVE BEEN STUDIED IN SEVERAL HIGH T/SUB C/ OXIDE
400       SUPERCONDUCTORS (1-2-3 COMPOUNDS). A J/SUB C/ REVERSING PHENOMENON,
400       IN WHICH CRITICAL CURRENT DENSITY, J/SUB C/ AT 4.2 K IS SMALLER THAN
400       AT 77 K, WAS OBSERVED IN SOME OF THEM. THE SMALLER J/SUB C/ CAN BE
400       EXPLAINED BY THE SMALLER QUENCH CURRENT DENSITY EXPECTED FROM THE
400       VERY SMALL THERMAL CONDUCTIVITY OBSERVED IN THESE MATERIALS. THERMAL
400       CONDUCTIVITY TURNED OUT TO BE DOMINATED BY THE PHONON CONTRIBUTION.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS; THERMAL
500       CONDUCTIVITY OF SOLIDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; Y/SUB 1-X/LN/SUB X/BA/SUB 2/CU/SUB
510       3/O/SUB 7-Y/; CRITICAL CURRENT DENSITY; THERMAL CONDUCTIVITY; PHONON
510       CONTRIBUTION; 4.2 K; 77 K.
550       BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 4.2 E+00 K; TEMPERATURE 7.7 E+01 K.

DOCUMENT=            1788
 AUTH     = ECKSTEIN
 DT       = 02
 KN       = B40891501317
 LG       = ENGL
 SN       = ISSN 0734-211X
 YR       = 89
000       3400901
002       B40891501317
010       JOURNAL PAPER; REVIEW, EXPERIMENTAL.
100       EPITAXIAL GROWTH OF HIGH-TEMPERATURE SUPERCONDUCTING THIN FILMS.
200       ECKSTEIN, J.N.; SCHLOM, D.G.; HELLMAN, E.S.; VON DESSONNECK, K.E.;
200       CHEN, Z.J.; WEBB, C.; TURNER, F.; HARRIS, J.S., JR.; BEASLEY, M.R.;
200       GEBALLE, T.H.
310       J. VAC. SCI. TECHNOL. B, MICROELECTRON. PROCESS. PHENOM. (USA)
330       MARCH-APRIL 1989. VOL.7, NO.2, P.319-23, REF.20
350       ISSN 0734-211X, CODEN JVTBD9
400       THE AUTHORS REPORT THE DEVELOPMENT OF MOLECULAR-BEAM EPITAXY (MBE)
400       TECHNIQUES FOR THE GROWTH OF HIGH-TEMPERATURE, PEROVSKITE-LIKE
400       SUPERCONDUCTORS. THE USE OF A PLASMA SOURCE OF ACTIVE OXYGEN ALLOWS
400       THE IN SITU GROWTH OF SUCH LAYERS. SOME OF THE FILMS GROWN THIS WAY
400       WERE SUPERCONDUCTING AS GROWN. SMOOTH FILMS EXHIBITING STREAKED
400       REFLECTION HIGH-ENERGY ELECTRON DIFFRACTION (RHEED) PATTERNS, WERE
400       OBTAINED BY USING SHUTTERING TO KINETICALLY CONTROL THE GROWTH
400       PROCESS. THE AUTHORS ALSO REPORT INITIAL RESULTS OF EXPERIMENTS IN
400       WHICH KINETIC CONTROL IS USED TO LAYER METASTABLE, NONEQUILIBRIUM
400       STRUCTURES IN THE BISMUTH-STRONTIUM-CALCIUM-COPPER-OXIDE SYSTEM.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MOLECULAR BEAM EPITAXIAL GROWTH; PLASMA DEPOSITION;
500       STRONTIUM COMPOUNDS; SUPERCONDUCTING EPITAXIAL LAYERS.
510       ACTIVE O PLASMA SOURCE; BEAM SHUTTERING; METASTABLE STRUCTURES;
510       HIGH-TEMPERATURE SUPERCONDUCTING THIN FILMS; MOLECULAR-BEAM EPITAXY;
510       MBE; IN SITU GROWTH; RHEED; KINETIC CONTROL; NONEQUILIBRIUM
510       STRUCTURES; BI-SR-CA-CU-O.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1789
 AUTH     = BAKHTIZI
 DT       = 02
 KN       = B40891501539
 LG       = RUSS
 SN       = ISSN 0015-3230
 YR       = 89
000       3401123
002       B40891501539
010       JOURNAL PAPER; EXPERIMENTAL.
100       ENERGY SPECTRA OF FIELD ELECTRONS EMITTED BY HIGH-TEMPERATURE
100       SUPERCONDUCTORS.
200       BAKHTIZIN, R.Z.; LOBANOV, V.M.; MESYATS, V.G.; SHKURATOV, S.I.;
200       YUMAGUZIN, YU.M.
220       INST. OF ELECTROPHYS., ACAD. OF SCI., USSR
310       FIZ. MET. METALLOVED. (USSR)
330       MARCH 1989. VOL.67, NO.3, P.610-11, REF.3. (IN RUSSIAN)
331       ENGLISH TRANSLATION: PHYS. MET. METALLOGR. (UK). CODEN PHMMA6. ISSN
331       0031-918X
350       ISSN 0015-3230, CODEN FMMTAK
400       AN INVESTIGATION WAS MADE OF THE ELECTRON FIELD-EMISSION SPECTRUM OF
400       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / AT TEMPERATURES OF 300 AND 85 K.
400       THE EFFECTS OF DIFFERENT ANODE VOLTAGES ON THE ENERGY DISTRIBUTION OF
400       FIELD ELECTRONS WAS STUDIED. THE INFLUENCE OF CONDITIONING OF THE
400       CATHODE IN VACUUM BEFORE EXPERIMENTS WAS ALSO INVESTIGATED.
500       BARIUM COMPOUNDS; ELECTRON FIELD EMISSION; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; VACUUM CONDITIONING; ELECTRON
510       FIELD-EMISSION SPECTRUM; ANODE VOLTAGES; CATHODE; YBA/SUB 2/CU/SUB
510       3/O/SUB 7- DELTA /.
550       YBA2CU3O/SUR BA2/SUR CU3/SUR BA/SUR CU/SUR O/SUR Y/SUR YBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1790
 AUTH     = BERNING
 DT       = 02
 KN       = B40891501806
 LG       = ENGL
 SN       = ISSN 0168-583X
 YR       = 89
000       3401390
002       B40891501806
010       JOURNAL PAPER; THEORETICAL, EXPERIMENTAL.
100       BACKSCATTERING ANALYSIS FOR OXYGEN PROFILING USING /SUP 16/O( ALPHA ,
100       ALPHA )/SUP 16/O 3.05 MEV RESONANCE PARAMETERS.
200       BERNING, P.; BENENSON, R.E.
220       DEPT. OF PHYS., STATE UNIV. OF NEW YORK, ALBANY, NY, USA
310       NUCL. INSTRUM. METHODS PHYS. RES. B, BEAM INTERACT. MATER. AT.
310       (NETHERLANDS)
330       MARCH 1989. VOL.B36, NO.3, P.335-9, REF.19
350       ISSN 0168-583X, CODEN NIMBEU
400       THE WELL-KNOWN /SUP 16/O( ALPHA , ALPHA )/SUP 16/O SCATTERING
400       RESONANCE NEAR 3.05 MEV PERMITS OXYGEN TO BE IDENTIFIED IN THE
400       PRESENCE OF HEAVY ELEMENTS BEING ANALYZED BY RUTHERFORD
400       BACKSCATTERING. THE AUTHORS INVESTIGATE EXPLICIT USE OF PUBLISHED
400       RESONANCE PARAMETERS AND THE BEST PRESENTLY AVAILABLE STOPPING POWERS
400       TO MAKE COMPUTER SIMULATIONS OF BACKSCATTERING ENERGY SPECTRA IN
400       ORDER TO MAKE QUANTITATIVE MEASUREMENTS OF NEAR SURFACE OXYGEN
400       PROFILES IN BULK OXIDES AND THIN FILMS. SIMULATIONS OF BULK AL/SUB
400       2/O/SUB 3/, Y/SUB 2/O/SUB 3/, YBA/SUB 2/CU/SUB 3/O/SUB 7- IN /, AND
400       THIN FILMS OF ZRO/SUB 2/ ON SILICON ARE COMPARED WITH ACTUAL DATA,
400       AND FOUND TO BE GENERALLY IN EXCELLENT AGREEMENT.
500       CHEMICAL ANALYSIS BY NUCLEAR REACTIONS AND SCATTERING; DIGITAL
500       SIMULATION; RUTHERFORD BACKSCATTERING.
510       O PROFILING; BACKSCATTERING ANALYSIS; NEAR SURFACE O PROFILES; /SUP
510       16/O( ALPHA , ALPHA )/SUP 16/O 3.05 MEV RESONANCE PARAMETERS; HEAVY
510       ELEMENTS; RUTHERFORD BACKSCATTERING; RESONANCE PARAMETERS; STOPPING
510       POWERS; COMPUTER SIMULATIONS; BACKSCATTERING ENERGY SPECTRA; BULK
510       OXIDES; THIN FILMS; 3.05 MEV; YBA/SUB 2/CU/SUB 3/O/SUB 7- IN /;
510       ZRO/SUB 2/; SI; AL/SUB 2/O/SUB 3/; Y/SUB 2/O/SUB 3/.
550       SI/SUR SI/EL; AL2O3/BIN AL2/BIN AL/BIN O3/BIN O/BIN; Y2O3/BIN O3/BIN
550       Y2/BIN O/BIN Y/BIN; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS;
550       ZRO2/BIN O2/BIN ZR/BIN O/BIN.
560       ELECTRON VOLT ENERGY 3.05 E+06 EV.

DOCUMENT=            1791
 AUTH     = LEAVITT
 DT       = 06
 KN       = B40891501871
 LG       = ENGL
 SN       = ISSN 0168-583X
 YR       = 89
000       3401455
002       B40891501871
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MEV ION BEAM ANALYSIS OF HIGH-T/SUB C/ SUPERCONDUCTING FILMS.
200       LEAVITT, J.A.; MCINTYRE, L.C. JR.
220       DEPT. OF PHYS., ARIZONA UNIV., TUCSON, AZ, USA
300       TENTH INTERNATIONAL CONFERENCE ON THE APPLICATION OF ACCELERATORS IN
300       RESEARCH AND INDUSTRY.
305       DENTON, TX, USA.  7-9 NOV. 1988.
310       NUCL. INSTRUM. METHODS PHYS. RES. B, BEAM INTERACT. MATER. AT.
310       (NETHERLANDS)
330       APRIL 1989. VOL.B40-41, PT.2, P.797-800, REF.6
350       ISSN 0168-583X, CODEN NIMBEU
400       AREAL DENSITIES (AT./CM/SUP 2/), AVERAGE STOICHIOMETRIC RATIOS,
400       IMPURITY CONCENTRATIONS AND ELEMENTAL DEPTH PROFILES FOR HIGH-T/SUB
400       C/ THIN FILMS MAY BE DETERMINED BY HIGH-ENERGY BACKSCATTERING USING
400       3-5 MEV/SUP /4HE ANALYSIS BEAMS. ACCURACIES OF ABOUT +OR-3% AND
400       +OR-1% ARE OBTAINED FOR AREAL DENSITIES AND AVERAGE STOICHIOMETRIC
400       RATIOS, RESPECTIVELY. THE AUTHORS PRESENT RESULTS OF THE ANALYSIS FOR
400       SEVERAL YBACUO FILMS IN THE THICKNESS RANGE 2500-9000 AA. THE AUTHORS
400       INDICATE THE ADVANTAGES OF USING THE 3-5 MEV/SUP /4HE ANALYSIS BEAMS
400       RATHER THAN THE USUAL 1-2 MEV/SUP /4HE BEAMS USED FOR RUTHERFORD
400       BACKSCATTERING SPECTROMETRY.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; IMPURITIES;
500       PARTICLE BACKSCATTERING; STOICHIOMETRY; SUPERCONDUCTING THIN FILMS;
500       YTTRIUM COMPOUNDS.
510       MEV ION BEAM ANALYSIS; HIGH-T/SUB C/ SUPERCONDUCTING FILMS; AVERAGE
510       STOICHIOMETRIC RATIOS; IMPURITY CONCENTRATIONS; ELEMENTAL DEPTH
510       PROFILES; /SUP 4/HE ANALYSIS; RUTHERFORD BACKSCATTERING SPECTROMETRY;
510       HIGH TEMPERATURE SUPERCONDUCTOR; AREAL DENSITIES; HIGH ENERGY
510       BACKSCATTERING; 3 TO 5 MEV; 2500 TO 9000 ANGSTROM; YBACUO.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.
560       ELECTRON VOLT ENERGY 3.0 E+06 TO 5.0 E+06 EV; SIZE 2.5 E-07 TO 9.0
560       E-07 M.

DOCUMENT=            1792
 AUTH     = HAMDI
 DT       = 06
 KN       = B40891501872
 LG       = ENGL
 SN       = ISSN 0168-583X
 YR       = 89
000       3401456
002       B40891501872
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ION BEAM ANALYSES AND PATTERNING OF SUPERCONDUCTING THIN FILMS.
200       HAMDI, A.H.; MANTESE, J.V.; MICHELI, A.L.; CATALAN, A.B. / COHEN,
200       A.B.; PADMANABHAN, K.R.
220       DEPT. OF ELECTR. ? ELECTRON, ENG., GM RES. LABS., WARREN, MI, USA
300       TENTH INTERNATIONAL CONFERENCE ON THE APPLICATION OF ACCELERATORS IN
300       RESEARCH AND INDUSTRY.
305       DENTON, TX, USA.  7-9 NOV. 1988.
310       NUCL. INSTRUM. METHODS PHYS. RES. B, BEAM INTERACT. MATER. AT.
310       (NETHERLANDS)
330       APRIL 1989. VOL.B40-41, PT.2, P.801-5, REF.22
350       ISSN 0168-583X, CODEN NIMBEU
400       THE USE OF ION BACKSCATTERING TO DETERMINE FILM THICKNESS,
400       COMPOSITION AND INTERACTION WITH VARIOUS SUBSTRATES IS DESCRIBED FOR
400       RE-BA-CU OXIDE (RE=Y, YB OR ER) HIGH T/SUB C/ SUPERCONDUCTING THIN
400       FILMS. WHEN THESE FILMS ARE DEPOSITED BY METALLO-ORGANIC DEPOSITION
400       ON (100) SRTIO/SUB 3/ ON ONSET OF SUPERCONDUCTIVITY ABOVE 90 K AND
400       ZERO RESISTANCE AT 86 K IS OBSERVED. AN ANOMALY IN THE RESISTANCE
400       ABOVE 200 K IS SHOWN TO BE DIRECTLY RELATED TO THE PRESENCE OF EXCESS
400       CU IN THE FILM. UPON ANNEALING ABOVE 800 DEGREES C, THE REACTION OF
400       THE RE-BA-CU OXIDE IS FOUND TO BE SUBSTRATE DEPENDENT. ON SI, SEVERE
400       DIFFUSION OF CU INTO THE SUBSTRATE IS OBSERVED WHILE ON SIO/SUB 2/
400       THE BA INTERACTS STRONGLY TO FORM SILICATE. IT IS POSSIBLE TO PATTERN
400       UNPYROLYZED METALLO-ORGANIC FILMS BY IMPLANTING THEM WITH OXYGEN IONS
400       OF APPROPRIATE ENERGY AND DOSE WHICH MAKES THE EXPOSED AREAS
400       INSOLUBLE IN XYLENE.
500       BARIUM COMPOUNDS; ERBIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       PARTICLE BACKSCATTERING; SUPERCONDUCTING THIN FILMS; YTTERBIUM
500       COMPOUNDS; YTTRIUM COMPOUNDS.
510       PATTERNING; SUPERCONDUCTING THIN FILMS; ION BACKSCATTERING; FILM
510       THICKNESS; COMPOSITION; HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS;
510       METALLO-ORGANIC DEPOSITION; RESISTANCE; ANNEALING; REACTION;
510       DIFFUSION; HIGH TEMPERATURE SUPERCONDUCTOR; ION BEAM ANALYSIS; 86 K;
510       800 DEGC; SRTIO/SUB 3/; YBACUO; SIO/SUB 2/; YBBACUO; SI; ERBACUO.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS; SIO2/SUR O2/SUR SI/SUR O/SUR
550       SIO2/BIN O2/BIN SI/BIN O/BIN; YBBACUO/SS BA/SS CU/SS YB/SS O/SS;
550       SI/SUR SI/EL; ERBACUO/SS BA/SS CU/SS ER/SS O/SS; SRTIO3/SS TIO3/SS
550       O3/SS SR/SS TI/SS O/SS.
560       TEMPERATURE 8.6 E+01 K; TEMPERATURE 1.07 E+03 K.

DOCUMENT=            1793
 AUTH     = CHEN
 DT       = 02
 KN       = B40891502082
 LG       = ENGL
 SN       = ISSN 0256-307X
 YR       = 89
000       3401666
002       B40891502082
010       JOURNAL PAPER; THEORETICAL.
100       COMMENT ON 'SUPERCONDUCTIVITY CAUSED BY STRONG CORRELATION'.
200       CHEN CHANGFENG
220       DEPT. OF PHYS., CALIFORNIA UNIV., BERKELY, CA, USA
310       CHIN. PHYS. LETT. (CHINA)
330       1989. VOL.6, NO.2, P.96, REF.6
350       ISSN 0256-307X, CODEN CPLEEU
400       FOR ORIGINAL PAPER SEE IBID., VOL.5, P.229 (1988). IN A RECENT
400       LETTER, FENG AND MA CLAIMED THAT THE RESULTS OF THEIR MODEL
400       CALCULATION CAN EXPLAIN THE UNUSUAL HEAVY-FERMION (HF) AND HIGH-TC
400       (HTC) SUPERCONDUCTIVITY. UNFORTUNATELY, THE AUTHORS DID NOT GIVE A
400       GOOD PHYSICAL PICTURE AND CONVINCING RESULTS. THE AUTHOR COMMENTS ON
400       AREAS SUCH AS: ELECTRONIC STRUCTURE; STRONG CORRELATION; AND THE
400       LAGRANGE MULTIPLIER.
500       BAND STRUCTURE; HEAVY FERMION SUPERCONDUCTORS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS.
510       SUPERCONDUCTIVITY; HIGH TEMPERATURE SUPERCONDUCTOR; HEAVY FERMION
510       SUPERCONDUCTOR; STRONG CORRELATION; ELECTRONIC STRUCTURE; LAGRANGE
510       MULTIPLIER.

DOCUMENT=            1794
 AUTH     = YAN
 DT       = 02
 KN       = B40891502083
 LG       = ENGL
 SN       = ISSN 0256-307X
 YR       = 89
000       3401667
002       B40891502083
010       JOURNAL PAPER; EXPERIMENTAL.
100       THERMOELECTRIC POWER IN SUPERCONDUCTING BI/SUB 2/SR/SUB 2/CACU/SUB
100       2/O/SUB X/ CRYSTAL.
200       YAN SHOUSHENG; CHEN TONG; ZHANG WENBIN; ZHANG HAIBO; WU KE; TONG
200       LITAI / ZHANG HONG
220       DEPT. OF PHYS., PEKING UNIV., BEIJING, CHINA
310       CHIN. PHYS. LETT. (CHINA)
330       1989. VOL.6, NO.4, P.177-80, REF.10
350       ISSN 0256-307X, CODEN CPLEEU
400       THE THERMOELECTRIC POWER S OF A SUPERCONDUCTING BI/SUB 2/SR/SUB
400       2/CACU/SUB 2/O/SUB X/ CRYSTAL HAS BEEN MEASURED FROM 77 K TO 290 K,
400       AND OBVIOUS ANISOTROPY HAS BEEN OBSERVED. THE VALUES OF S IN A-B
400       PLANE ARE NEGATIVE AND SMALL, AND S IN C-AXIS ARE POSITIVE. IF THE
400       SEMICONDUCTOR-LIKE BEHAVIOR OF R(T) IS INTRINSIC IN C DIRECTION,
400       SUPPOSING THE EXISTENCE OF METALLIC LINKS BETWEEN CU-O PLANES CAUSED
400       BY DEFECTS IN CRYSTAL, THE BEHAVIORS OF S(T) AND R(T) IN C DIRECTION
400       OF THE SAMPLE COULD BE UNDERSTOOD.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF
500       CRYSTALLINE SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SEEBECK EFFECT; STRONTIUM COMPOUNDS; THERMOELECTRIC
500       EFFECTS IN SEMICONDUCTORS AND INSULATORS.
510       THERMOELECTRIC ANISOTROPY; DEFECTS; HIGH TEMPERATURE SUPERCONDUCTOR;
510       ELECTRICAL CONDUCTIVITY; THERMOELECTRIC POWER; METALLIC LINKS; CU-O
510       PLANES; 77 TO 290 K; BI/SUB 2/SR/SUB 2/CACU/SUB 2/O/SUB X/.
550       BI2SR2CACU2O/SS BI2/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS SR/SS O/SS.
560       TEMPERATURE 7.7 E+01 TO 2.9 E+02 K.
510       3/O/SUB 7-X/.
DOCUMENT=            1795
 AUTH     = ZHU
 DT       = 02
 KN       = B40891502084
 LG       = ENGL
 SN       = ISSN 0256-307X
 YR       = 89
000       3401668
002       B40891502084
010       JOURNAL PAPER; EXPERIMENTAL.
100       THE LINEAR TEMPERATURE BEHAVIOR OF RESISTIVITY AND OXYGEN
100       STOICHIOMETRY IN YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
200       ZHU SHINING; ZHANG XINGKUI; XU ZIRAN; WANG HAO; XIA HUA
220       DEPT. OF PHYS., NANJING UNIV., CHINA
310       CHIN. PHYS. LETT. (CHINA)
330       1989. VOL.6, NO.4, P.185-8, REF.7
350       ISSN 0256-307X, CODEN CPLEEU
400       BY EMPLOYING A GETTERED ANNEALING TECHNIQUE THE AUTHORS STUDIED THE
400       RELATIONSHIP BETWEEN THE RESISTIVITY P(X,T) (20 DEGREES C<OR=T<OR=300
400       DEGREES C) AND OXYGEN CONTENT IN THE HIGH-T/SUB C/ SUPERCONDUCTOR
400       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/. RHO (X,T) IS APPROXIMATELY LINEAR FOR
400       0.0<OR=X<OR=0.6, AND BOTH THE SLOPE D RHO /DT AND THE RESIDUAL
400       RESISTIVITY INCREASE CONTINUOUSLY WITH DECREASING OXYGEN CONTENT. A
400       QUALITATIVE ANALYSIS IS GIVEN.
500       BARIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       STOICHIOMETRY; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; O STOICHIOMETRY; ELECTRICAL
510       CONDUCTIVITY; LINEAR DEPENDENCE; TEMPERATURE DEPENDENCE; GETTERED
510       ANNEALING; RESIDUAL RESISTIVITY; 20 TO 300 DEGC; YBA/SUB 2/CU/SUB
510       3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 2.93 E+02 TO 5.73 E+02 K.

DOCUMENT=            1796
 AUTH     = BEL'SKII
 DT       = 02
 KN       = B40891502331
 LG       = ENGL
 SN       = ISSN 0002-337X
 YR       = 88
000       3401915
002       B40891502331
010       JOURNAL PAPER; EXPERIMENTAL.
100       RELATIONSHIP BETWEEN THE ELECTRICAL PROPERTIES OF THE SUPERCONDUCTING
100       OXIDE YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/ AND ITS COMPOSITION.
200       BEL'SKII, N.K.; OCHERTYANOVA, L.I.; KONOVALOVA, I.A.; SHAPLYGIN,
200       I.S.; TISHCHENKO, E.A.; LAZAREV, V.B.
220       N.S. KURNAKOV INST. OF GEN. ? INORG. CHEM., ACAD. OF SCI., USSR
310       IZV. AKAD. NAUK SSSR NEORG. MATER. (USSR)
330       JUNE 1988. VOL.24, NO.6, P.976-9, REF.6
331       ENGLISH TRANSLATION: INORG. MATER. (USA). JUNE 1988. VOL.24, NO.6,
331       P.826-9. CODEN INOMAF. ISSN 0020-1685
350       ISSN 0002-337X, CODEN IVNMAW
400       THE AUTHORS USED THE METHOD OF PRECISION ATOMIC-ABSORPTION ANALYSIS
400       TO DETERMINE THE COMPOSITION OF MOLDED POLYCRYSTALLINE SAMPLES OF
400       YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/ WITH RESPECT TO EACH CATION WITH A HIGH
400       ACCURACY, AND THEY EXAMINED THE DEPENDENCE OF THEIR ELECTRICAL
400       PROPERTIES ON THE CONTENT OF THESE ELEMENTS IN THE SUPERCONDUCTING
400       MATERIALS.
500       ATOMIC ABSORPTION SPECTROSCOPY; BARIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ATOMIC-ABSORPTION ANALYSIS;
510       COMPOSITION; MOLDED POLYCRYSTALLINE SAMPLES; CATION; ELECTRICAL
510       PROPERTIES; SUPERCONDUCTING MATERIALS; YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1797
 AUTH     = GORBUNOV
 DT       = 02
 KN       = B40891502332
 LG       = ENGL
 SN       = ISSN 0002-337X
 YR       = 88
000       3401916
002       B40891502332
010       JOURNAL PAPER; EXPERIMENTAL.
100       LOW-TEMPERATURE SPECIFIC HEAT OF THE TRIPLE OXIDE HOBA/SUB 2/CU/SUB
100       3/O/SUB 6.75/.
200       GORBUNOV, V.E.; GAVRICHEV, K.S.; KONOVALOVA, I.A.; SHAPLYGIN, I.S.;
200       TISHCHENKO, E.A.; LAZAREV, V.B.
220       N.S. KURNAKOV INST. OF GEN. ? INORG. CHEM., ACAD. OF SCI., USSR
310       IZV. AKAD. NAUK SSSR NEORG. MATER. (USSR)
330       JUNE 1988. VOL.24, NO.6, P.1047-9, REF.7
331       ENGLISH TRANSLATION: INORG. MATER. (USA). JUNE 1988. VOL.24, NO.6,
331       P.890-2. CODEN INOMAF. ISSN 0020-1685
350       ISSN 0002-337X, CODEN IVNMAW
400       IN THE WORK THE AUTHORS INVESTIGATED THE TEMPERATURE DEPENDENCE OF
400       THE SPECIFIC HEAT OF THE HOBA/SUB 2/CU/SUB 3/O/SUB 6.75/, WHICH HAS
400       MAGNETIC PROPERTIES DIFFERING FROM THOSE OF THE YTTRIUM-BARIUM
400       CERAMIC.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; HOLMIUM
500       COMPOUNDS; MAGNETIC SUPERCONDUCTORS; SPECIFIC HEAT OF SOLIDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SPECIFIC HEAT; MAGNETIC PROPERTIES;
510       HOBA/SUB 2/CU/SUB 3/O/SUB 6.75/.
550       HOBA2CU3O6.75/SS O6.75/SS BA2/SS CU3/SS BA/SS CU/SS HO/SS O/SS.

DOCUMENT=            1798
 AUTH     = CHAKRABO
 DT       = 02
 KN       = B40891502553
 LG       = ENGL
 SN       = ISSN 0884-2914
 YR       = 89
000       3402137
002       B40891502553
010       JOURNAL PAPER; EXPERIMENTAL.
100       ANTIFERROMAGNETIC BEHAVIOR IN Y-BA-(CU/SUB -X/SC/SUB X/)-O.
200       CHAKRABORTY, A.; CHEN, X.D.; ZUO, F.; PATTON, B.R.; GAINES, J.R. /
200       EPSTEIN, A.J.
220       DEPT. OF PHYS., OHIO STATE UNIV., COLOMBUS, OH, USA
310       J. MATER. RES. (USA)
330       MAY-JUNE 1989. VOL.4, NO.3, P.467-9, REF.11
350       ISSN 0884-2914, CODEN JMREEE
400       THE AUTHORS REPORT THE RESULTS ON X-RAY DIFFRACTION AND MAGNETIC
400       SUSCEPTIBILITY STUDY OF Y-BA-(CU/SUB 1-X/SC/SUB X/)-O. THE MATERIALS
400       WERE PREPARED IN A STOICHIOMETRY CORRESPONDING TO Y/SUB 1/BA/SUB
400       2/(CU/SUB 1-X/SC/SUB X/)/SUB 3/O/SUB 7/. ALTHOUGH X-RAY ANALYSIS
400       REVEALS THE INCREASING PRESENCE OF A SUBTLE SECOND PHASE WITH
400       INCREASING SC CONTENT, THE SUPERCONDUCTING TRANSITION TEMPERATURE AND
400       RESISTIVITY DID NOT CHANGE SUBSTANTIALLY IN THE COMPOSITION RANGE
400       0.0<OR=X<OR=0.15. IN CONTRAST, THE MAGNETIC SUSCEPTIBILITY STUDIES
400       SHOWED DRAMATIC CHANGES. ALTHOUGH SC/SUP 3+/ HAS NO SPIN BY ITSELF,
400       AN ENHANCED PARAMAGNETIC CURIE SUSCEPTIBILITY WAS OBSERVED ABOVE
400       T/SUB C/ WITH A MOMENT OF 1.5 MU /SUB B/ PER SC. AT 16 K A SHARP CUSP
400       IS OBSERVED IN THE TEMPERATURE DEPENDENT SUSCEPTIBILITY CORRESPONDING
400       TO THE ONSET OF A THREE-DIMENSIONALLY ORDERED ANTIFERROMAGNETIC
400       STATE. THESE RESULTS ARE DISCUSSED IN TERMS OF AN ADDITIONAL
400       PREVIOUSLY UNREPORTED PHASE OF Y-BA-(CU-SC)-O THAT HAS AN
400       ANTIFERROMAGNETIC NEEL TEMPERATURE OF 16 K. FOR COMPOSITION OF X=1.0
400       A NEW PHASE IS FORMED WHICH IS NONMAGNETIC.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC MOMENTS; MAGNETIC
500       SUPERCONDUCTORS; MAGNETIC SUSCEPTIBILITY; NEEL TEMPERATURE;
500       PARAMAGNETIC PROPERTIES OF SUBSTANCES; SUPERCONDUCTING TRANSITION
500       TEMPERATURE; X-RAY DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM
500       COMPOUNDS.
510       CRITICAL TEMPERATURE; NORMAL STATE RESISTIVITY; X-RAY CHEMICAL
510       ANALYSIS; TEMPERATURE DEPENDENCE; SC MAGNETIC MOMENT; HIGH
510       TEMPERATURE SUPERCONDUCTOR; X-RAY DIFFRACTION; MAGNETIC
510       SUSCEPTIBILITY; ENHANCED PARAMAGNETIC CURIE SUSCEPTIBILITY;
510       THREE-DIMENSIONALLY ORDERED ANTIFERROMAGNETIC STATE; NEEL
510       TEMPERATURE; Y-BA-(CU/SUB -X/SC/SUB X/)-O.
550       YBACUSCO/SS BA/SS CU/SS SC/SS O/SS Y/SS.

DOCUMENT=            1799
 AUTH     = HELLMAN
 DT       = 02
 KN       = B40891502554
 LG       = ENGL
 SN       = ISSN 0884-2914
 YR       = 89
000       3402138
002       B40891502554
010       JOURNAL PAPER; EXPERIMENTAL.
100       PHASE CHARACTERIZATION OF DYSPROSIUM BARIUM COPPER OXIDE THIN FILMS
100       GROWN ON STRONTIUM TITANATE BY MOLECULAR BEAM EPITAXY.
200       HELLMAN, E.S.; SCHLOM, D.G.; MARSHALL, A.F.; STREIFFER, S.K.; HARRIS,
200       J.S., JR.; BEASLEY, M.R.; BRAVMAN, J.C.; GEBALLE, T.H. / ECKSTEIN,
200       J.N.; WEBB, C.
220       STANFORD UNIV., CA, USA
310       J. MATER. RES. (USA)
330       MAY-JUNE 1989. VOL.4, NO.3, P.476-95, REF.51
350       ISSN 0884-2914, CODEN JMREEE
400       X-RAY DIFFRACTION, TRANSMISSION ELECTRON MICROSCOPY, AND IN SITU
400       REFLECTION HIGH ENERGY ELECTRON DIFFRACTION STUDIES OF THIN EPITAXIAL
400       DYSPROSIUM BARIUM COPPER OXIDE FILMS GROWN BY OXYGEN PLASMA MOLECULAR
400       BEAM EPITAXY (MBE) ON STRONTIUM TITANATE SUBSTRATES ARE PRESENTED. A
400       REMARKABLE VARIETY OF STRUCTURE IS REVEALED, MAKING CLEAR BOTH THE
400       POSSIBILITIES AND CHALLENGES FOR THIS GROWTH TECHNIQUE AS APPLIED TO
400       THE CUPRATE SUPERCONDUCTORS. THE FILMS STUDIED ARE HIGHLY EPITAXIAL,
400       OBTAINED THROUGH THE USE OF SHUTTERED MOLECULAR BEAMS TO ENCOURAGE
400       THE LAYERED STRUCTURE CHARACTERISTIC OF SUPERCONDUCTING DYBA/SUB
400       2/CU/SUB 3/O/SUB 7-X/ ('123'). WHILE SOME OF THESE FILMS ARE
400       SUPERCONDUCTING AS DEPOSITED, MORE OFTEN THEY ARE SEMICONDUCTING OR
400       INSULATING. THE 123-LIKE MATERIAL IN THESE FILMS HAS A LENGTHENED
400       C-AXIS, PERHAPS DUE TO NONSTOICHIOMETRY. PHASES RELATED TO DYBA/SUB
400       3/CU/SUB 2/O/SUB X/ (THE OTHER PEROVSKITE) ARE ALSO VERY IMPORTANT
400       FOR EPITAXIAL GROWTH, AND DISPLAY A DISTINCTIVE SIGNATURE IN THE
400       RHEED PATTERNS. OTHER EPITAXIAL IMPURITY PHASES INCLUDING BACUO/SUB
400       2/ AND A NEW ORTHORHOMBIC PHASE ARE ALSO CHARACTERIZED.
500       BARIUM COMPOUNDS; DYSPROSIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; REFLECTION HIGH ENERGY ELECTRON DIFFRACTION;
500       STRONTIUM COMPOUNDS; SUBSTRATES; SUPERCONDUCTING EPITAXIAL LAYERS;
500       TRANSMISSION ELECTRON MICROSCOPE EXAMINATION OF MATERIALS; X-RAY
500       DIFFRACTION EXAMINATION OF MATERIALS.
510       IN SITU RHEED; TEM; O PLASMA MBE; EPITAXIAL LAYERS; PHASE
510       CHARACTERISATION; HIGH TEMPERATURE SUPERCONDUCTOR; THIN FILMS; X-RAY
510       DIFFRACTION; STRUCTURE; SHUTTERED MOLECULAR BEAMS; DYBA/SUB 3/CU/SUB
510       2/O/SUB X/; EPITAXIAL IMPURITY PHASES; BACUO/SUB 2/; ORTHORHOMBIC
510       PHASE; DYBA/SUB 2/CU/SUB 3/O/SUB 7-X/; SRTIO/SUB 3/.
550       SRTIO3/SUR TIO3/SUR O3/SUR SR/SUR TI/SUR O/SUR SRTIO3/SS TIO3/SS
550       O3/SS SR/SS TI/SS O/SS; DYBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS DY/SS
550       O/SS.

DOCUMENT=            1800
 AUTH     = GINLEY
 DT       = 02
 KN       = B40891502555
 LG       = ENGL
 SN       = ISSN 0884-2914
 YR       = 89
000       3402139
002       B40891502555
010       JOURNAL PAPER; EXPERIMENTAL.
100       IMPROVED SUPERCONDUCTING Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 6.9/ THROUGH
100       HIGH TEMPERATURE PROCESSING.
200       GINLEY, D.S.; VENTURINI, E.L.; KWAK, J.F.; BAUGHMAN, R.J.; MOROSIN,
200       B.
220       SANDIA NAT. LABS., ALBUQUERQUE, NM, USA
310       J. MATER. RES. (USA)
330       MAY-JUNE 1989. VOL.4, NO.3, P.496-500, REF.16
350       ISSN 0884-2914, CODEN JMREEE
400       THE YBACUO SYSTEM HAS PRODUCED SUPERCONDUCTORS WITH SUPERCONDUCTING
400       TRANSITION TEMPERATURES (T/SUB C/) OVER 90 K. INTEGRAL TO THE
400       PRODUCTION OF THESE MATERIALS ARE HIGH TEMPERATURE SINTERING AND
400       SUBSEQUENT OXYGEN ANNEALING PROCESSES. THE AUTHORS PRESENT RESULTS
400       DIRECTED TOWARD OPTIMIZING THESE TWO PROCESS STEPS. THEY FIND THAT
400       OXYGEN STABILIZES THE YBA/SUB 2/CU/SUB 3/O/SUB 6.9/ MATERIAL AGAINST
400       DECOMPOSITION TO TEMPERATURES NEAR THE MELTING POINT, ALLOWING
400       PROCESSING AT HIGHER TEMPERATURES, WHICH PRODUCES SIGNIFICANTLY
400       HIGHER QUALITY SINGLE PHASE MATERIAL AND SOMEWHAT IMPROVED
400       GRAIN-TO-GRAIN CONTACTS.
500       ANNEALING; BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SINTERING; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; O ANNEALING; QUALITY; STABILIZATION;
510       HIGH TEMPERATURE PROCESSING; HIGH TEMPERATURE SINTERING;
510       DECOMPOSITION; SINGLE PHASE MATERIAL; GRAIN-TO-GRAIN CONTACTS; Y/SUB
510       1/BA/SUB 2/CU/SUB 3/O/SUB 6.9/.
550       Y1BA2CU3O6.9/SS O6.9/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1801
 AUTH     = GINLEY
 DT       = 02
 KN       = B40891502556
 LG       = ENGL
 SN       = ISSN 0884-2914
 YR       = 89
000       3402140
002       B40891502556
010       JOURNAL PAPER; EXPERIMENTAL.
100       FREESTANDING THICK FILMS OF YBA/SUB 2/CU/SUB 3/O/SUB 6.9/ BY
100       SCREENPRINTING TECHNIQUES.
200       GINLEY, D.S.; MITCHELL, M.A.; KWAK, J.F.; VENTURINI, E.L.; BAUGHMAN,
200       R.J. / FU, W.
220       SANDIA NAT. LABS., ALBUQUERQUE, NM, USA
310       J. MATER. RES. (USA)
330       MAY-JUNE 1989. VOL.4, NO.3, P.501-3, REF.7
350       ISSN 0884-2914, CODEN JMREEE
400       THICK (20-300 MU M) FREESTANDING POLYCRYSTALLINE FILMS OF CERAMIC
400       YBA/SUB 2/CU/SUB 3/O/SUB 6.9/ HAVE BEEN OBTAINED BY RESINTERING
400       YBA/SUB 2/CU/SUB 3/O/SUB 6.9/ POWDER IN AIR AFTER SCREEN PRINTING
400       ONTO FUSED SILICA SUBSTRATES. AN INTERFACIAL REACTION OCCURS BETWEEN
400       THE POWDER AND THE SILICA SUBSTRATE WHICH EFFICIENTLY DETACHES THE
400       RESINTERED FILM UPON COOLING. THE MAGNETIZATION AND TRANSPORT
400       PROPERTIES OF THESE FILMS ARE COMPARABLE TO THOSE FOR HIGH QUALITY
400       BULK CERAMIC SAMPLES.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       CRYSTAL MICROSTRUCTURE; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MAGNETISATION; SINTERING; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       THICK FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SEM; DIAMAGNETIC SHIELDING;
510       FREESTANDING FILMS; CRYSTAL MICROSTRUCTURE; CRITICAL TEMPERATURE;
510       FLUX EXCLUSION; ELECTRICAL CONDUCTIVITY; CRITICAL CURRENT DENSITY;
510       THICK FILMS; SCREENPRINTING; POLYCRYSTALLINE FILMS; RESINTERING;
510       SCREEN PRINTING; FUSED SILICA SUBSTRATES; INTERFACIAL REACTION;
510       COOLING; MAGNETIZATION; YBA/SUB 2/CU/SUB 3/O/SUB 6.9/.
550       YBA2CU3O6.9/SS O6.9/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1802
 AUTH     = HAM
 DT       = 02
 KN       = B40891502557
 LG       = ENGL
 SN       = ISSN 0884-2914
 YR       = 89
000       3402141
002       B40891502557
010       JOURNAL PAPER; EXPERIMENTAL.
100       PARTIAL SUBSTITUTION OF /SUP 18/O IN YBA/SUB 2/CU/SUB 3/O/SUB 7/:
100       INVESTIGATIONS OF INHOMOGENEITIES AND THEIR EFFECT ON T/SUB C/.
200       HAM, W.K.; KELLER, S.W.; MICHAELS, J.N.; STACY, A.M. / KRILLOV, D.;
200       HODUL, D.T.; FLEMING, R.H.
220       COLL. OF CHEM., CALIFORNIA UNIV., BERKELEY, CA, USA
310       J. MATER. RES. (USA)
330       MAY-JUNE 1989. VOL.4, NO.3, P.504-14, REF.36
350       ISSN 0884-2914, CODEN JMREEE
400       THE POSSIBILITY OF SITE-SELECTIVE SUBSTITUTION OF /SUP 18/O INTO
400       YBA/SUB 2/CU/SUB 3/O/SUB 7/ WAS EXPLORED. SAMPLES CONTAINING VARIOUS
400       QUANTITIES OF /SUP 18/O WERE PREPARED BY PROCESSING IN /SUP 18/O/SUB
400       2/ BOTH AT 950 DEGREES C AND AT 400 DEGREES C. THE SAMPLES WERE
400       CHARACTERIZED BY SECONDARY ION MASS SPECTROSCOPY (SIMS), TEMPERATURE
400       PROGRAMMED DESORPTION (TPD) AND REDUCTION (TPR), RAMAN SPECTROSCOPY,
400       AND MAGNETIZATION MEASUREMENTS. MEASUREMENTS OF THE SHIFTS IN THE
400       RAMAN ACTIVE MODES WITH /SUP 18/O SUBSTITUTION AND OF THE RATIOS OF
400       /SUP 18/O TO /SUP 16/O BY TPD, TPR, AND SIMS SHOW THAT EVEN FOR
400       TEMPERATURES AS LOW AS 400 DEGREES C AND TIMES AS SHORT AS 2 H, /SUP
400       18/O IS NOT SUBSTITUTED EXCLUSIVELY INTO THE CHAIN SITE (O1) IN
400       YBA/SUB 2/CU/SUB 3/O/SUB 7/. IN ADDITION, THERE IS NO CONSISTENT
400       VARIATION IN THE SHIFTS IN T/SUB C/ WITH THE DEGREE OF SUBSTITUTION;
400       THEREFORE, THE ISOTOPE EFFECT FOR A SAMPLE WITH 100% /SUP 18/O CANNOT
400       BE PREDICTED BY A LINEAR EXTRAPOLATION OF DATA OBTAINED FOR SAMPLES
400       WITH PARTIAL /SUP 18/O SUBSTITUTION. THE MECHANISM OF OXYGEN
400       SUBSTITUTION, THE DIFFICULTIES OF MEASURING THE TRUE MAGNITUDE OF THE
400       OXYGEN ISOTOPE SHIFT, AND THE MEANING OF THE SMALL ISOTOPE SHIFT ARE
400       DISCUSSED.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; ISOTOPE EFFECTS;
500       LATTICE PHONONS; MAGNETISATION; RAMAN SPECTRA OF INORGANIC SOLIDS;
500       SECONDARY ION MASS SPECTRA; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       THERMAL ANALYSIS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; TPD; TEMPERATURE PROGRAMMED
510       REDUCTION; TPR; /SUP 18/O PARTIAL SUBSTITUTION; /SUP 18/O
510       SITE-SELECTIVE SUBSTITUTION; SIMS; SUBSTITUTION MECHANISM; CRITICAL
510       TEMPERATURE; INHOMOGENEITIES; TEMPERATURE PROGRAMMED DESORPTION;
510       RAMAN SPECTROSCOPY; MAGNETIZATION; RAMAN ACTIVE MODES; CHAIN SITE;
510       ISOTOPE EFFECT; ISOTOPE SHIFT; 950 DEGC; 400 DEGC.
560       TEMPERATURE 1.22 E+03 K; TEMPERATURE 6.73 E+02 K.

DOCUMENT=            1803
 AUTH     = RAMESH
 DT       = 02
 KN       = B40891502558
 LG       = ENGL
 SN       = ISSN 0884-2914
 YR       = 89
000       3402142
002       B40891502558
010       JOURNAL PAPER; EXPERIMENTAL.
100       ELECTRON MICROSCOPY OF A GD-BA-CU-O SUPERCONDUCTOR.
200       RAMESH, R.; THOMAS, G. / MENG, R.L.; HOR, P.H.; CHU, C.W.
220       DEPT. OF MATER. SCI., CALIFORNIA UNIV., BERKELEY, CA, USA
310       J. MATER. RES. (USA)
330       MAY-JUNE 1989. VOL.4, NO.3, P.515-20, REF.18
350       ISSN 0884-2914, CODEN JMREEE
400       AN ELECTRON MICROSCOPY STUDY HAS BEEN CARRIED OUT TO CHARACTERIZE THE
400       MICROSTRUCTURE OF A SINTERED GD-BA-CU-O SUPERCONDUCTOR ALLOY. THE
400       GDBA/SUB 2/CU/SUB 3/O/SUB 7-X/ PHASE IN THE OXYGEN ANNEALED SAMPLE IS
400       ORTHORHOMBIC WHILE IN THE VACUUM ANNEALED SAMPLE IT IS TETRAGONAL. IT
400       IS SHOWN THAT THE DETAILS OF THE FINE STRUCTURE IN THE (001) ZONE
400       AXIS CONVERGENT BEAM PATTERNS CAN BE USED TO DISTINGUISH BETWEEN THE
400       ORTHORHOMBIC FORM AND THE TETRAGONAL FORM. IN ADDITION TO THIS MATRIX
400       PHASE, AN AMORPHOUS PHASE IS FREQUENTLY OBSERVED AT THE TRIPLE GRAIN
400       JUNCTIONS. GD-RICH INCLUSIONS HAVE BEEN OBSERVED INSIDE THE MATRIX
400       PHASE.
500       ANNEALING; BARIUM COMPOUNDS; CRYSTAL MICROSTRUCTURE; GADOLINIUM
500       COMPOUNDS; GRAIN BOUNDARIES; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       TRANSMISSION ELECTRON MICROSCOPE EXAMINATION OF MATERIALS.
510       MICROSTRUCTURE; SINTERING; CONVERGENT BEAM ELECTRON DIFFRACTION; TEM;
510       O ANNEALING; VACUUM ANNEALING; HIGH TEMPERATURE SUPERCONDUCTOR;
510       ORTHORHOMBIC; TETRAGONAL; FINE STRUCTURE; (001) ZONE AXIS CONVERGENT
510       BEAM PATTERNS; AMORPHOUS PHASE; TRIPLE GRAIN JUNCTIONS; GD-RICH
510       INCLUSIONS; GD-BA-CU-O.
550       GDBACUO/SS BA/SS CU/SS GD/SS O/SS.

DOCUMENT=            1804
 AUTH     = OHANA
 DT       = 02
 KN       = B40891502559
 LG       = ENGL
 SN       = ISSN 0884-2914
 YR       = 89
000       3402143
002       B40891502559
010       JOURNAL PAPER; EXPERIMENTAL.
100       THE 1430 CM/SUP -1/ RAMAN LINE IN SINGLE CRYSTALS OF LA/SUB 2/CUO/SUB
100       4-Y/.
200       OHANA, I.; DRESSELHAUS, M.S. / HEIMAN, D.; DRESSELHAUS, G.; PICONE,
200       P.J.
220       DEPT. OF PHYS., MIT, CAMBRIDGE, MA, USA
310       J. MATER. RES. (USA)
330       MAY-JUNE 1989. VOL.4, NO.3, P.521-5, REF.12
350       ISSN 0884-2914, CODEN JMREEE
400       THE RAMAN LINE AT 1430 CM/SUP -1/ (M-LINE) IN SINGLE CRYSTAL LA/SUB
400       2/CUO/SUB 4-Y/ WAS STUDIED AS A FUNCTION OF DOPING, TEMPERATURE,
400       MAGNETIC FIELD, AND EXCITATION WAVELENGTH. UPON LI DOPING THE LINE
400       BECOMES BROADER, AND IT VANISHES RAPIDLY WITH SR-DOPING. THE LINE
400       ALSO BROADENS WITH INCREASING TEMPERATURE AND INCREASING APPLIED
400       MAGNETIC FIELD. RESONANCE ENHANCEMENT WAS FOUND FOR DECREASING LASER
400       EXCITATION ENERGIES BUT WAS NOT AS PRONOUNCED AS THE ENHANCEMENT OF
400       SEVERAL ALLEGED TWO-PHONON LINES. MANY OF THESE FEATURES ARE
400       CORRELATED WITH THE 2D ANTIFERROMAGNETIC ORDERING MEASURED IN THIS
400       SYSTEM BY NEUTRON SCATTERING. THE POSSIBLE IDENTIFICATION OF THIS
400       LINE AS A ONE-SPIN EXCITATION IS FAVORED BY THE DATA THOUGH A
400       TWO-PHONON EXCITATION IS ALSO CONSIDERED.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; IMPURITIES; LANTHANUM
500       COMPOUNDS; LATTICE PHONONS; LITHIUM; MAGNETO-OPTICAL EFFECTS; RAMAN
500       SPECTRA OF INORGANIC SOLIDS; SPECTRAL LINE BREADTH; STRONTIUM.
510       MAGNETIC FIELD DEPENDENCE; EXCITATION WAVELENGTH DEPENDENCE;
510       TEMPERATURE DEPENDENCE; DOPING DEPENDENCE; RAMAN SPECTRA; LINE
510       BREADTH; M-LINE; RESONANCE ENHANCEMENT; IMPURITY EFFECTS; RAMAN LINE;
510       SINGLE CRYSTALS; LASER EXCITATION ENERGIES; TWO-PHONON LINES; 2D
510       ANTIFERROMAGNETIC ORDERING; ONE-SPIN EXCITATION; TWO-PHONON
510       EXCITATION; 1430 CM/SUP -1/; LA/SUB 2/CUO/SUB 4-Y/; LA/SUB 2/CUO/SUB
510       4-Y/:LI; LA-CU-SR-O.
550       LA2CUO:LI/SS LA2CUO/SS LA2/SS CU/SS LA/SS LI/SS O/SS LI/EL LI/DOP;
550       LACUSRO/SS CU/SS LA/SS SR/SS O/SS; LA2CUO/SS LA2/SS CU/SS LA/SS O/SS.
560       WAVELENGTH 6.99 E-06 M.

DOCUMENT=            1805
 AUTH     = LAUNAY
 DT       = 02
 KN       = B40891502840
 LG       = FREN
 SN       = ISSN 0022-5088
 YR       = 89
000       3402424
002       B40891502840
010       JOURNAL PAPER; EXPERIMENTAL.
100       SYNTHESIS AND CHARACTERISATION OF THE NEW MIXED VALENCE TELLURATES.
200       LAUNAY, S.; MAHE, P.; QUARTON, M.
220       LAB. DE CRISTALLOCHIMIE DU SOLIDE, UNIV. PIERRE ET MARIE CURIE,
220       FRANCE
310       J. LESS-COMMON MET. (SWITZERLAND)
330       MARCH 1989. VOL.147, NO.2, P.161-6, REF.15. (IN FRENCH)
350       ISSN 0022-5088, CODEN JCOMAH
400       THE STUDY OF BATE/SUB 2/O/SUB 6/-M/SUP I/NBO/SUB 3/ AND BATE/SUB
400       2/O/SUB 6/-M/SUP II/(NBO/SUB 3/)/SUB 2/ ALLOWED THE SYNTHESIS OF THE
400       NEW COMPOUNDS M/SUP I/BANBTE/SUB 2/O/SUB 9/ WITH M/SUP I/ IDENTICAL
400       TO LI, NA, K, RB, AG AND M/SUB 0.5//SUP II/BANBTE/SUB 2/O/SUB 9/ WITH
400       M/SUP II/ IDENTICAL TO MG, CA, SR, BA, CU, ZN, CD, PB. THESE
400       COMPOUNDS CONTAIN MIXED VALENT TELLURIUM (IV AND VI). ALL THESE
400       COMPOUNDS ARE ISOSTRUCTURAL: ORTHORHOMBIC, SPACE GROUP P2/SUB 1/2/SUB
400       1/2/SUB 1/, Z=4. THE ELECTRICAL, OPTICAL AND MAGNETIC PROPERTIES OF
400       CU/SUB 0.5/BANBTE/SUB 2/O/SUB 9/ COMPOUND HAVE BEEN STUDIED. RESULTS
400       DEMONSTRATE THE EXISTENCE OF INDEPENDENT CU/SUP 2+/ IONS, MOST OF
400       WHICH ARE PLACED ON AXIAL SYMMETRY SITES WHICH RESULT FROM A
400       DEFORMATION BY ELONGATION, WHICH IS PROBABLY CAUSED BY A JAHN-TELLER
400       EFFECT.
500       BARIUM COMPOUNDS; COPPER COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; JAHN-TELLER EFFECT; MAGNETIC
500       SUSCEPTIBILITY; MATERIALS PREPARATION; MIXED VALENCE COMPOUNDS;
500       NIOBIUM COMPOUNDS; PARAMAGNETIC PROPERTIES OF SUBSTANCES;
500       PARAMAGNETIC RESONANCE OF IRON GROUP IONS AND IMPURITIES; ULTRAVIOLET
500       SPECTRA OF INORGANIC SOLIDS; VISIBLE SPECTRA OF INORGANIC SOLIDS.
510       VISIBLE SPECTRA; UV SPECTRA; EPR; ELECTRICAL CONDUCTIVITY; MAGNETIC
510       SUSCEPTIBILITY; CRYSTAL STRUCTURE; MIXED VALENCE TELLURATES;
510       SYNTHESIS; INDEPENDENT CU/SUP 2+/ IONS; AXIAL SYMMETRY SITES;
510       JAHN-TELLER EFFECT; CU/SUB 0.5/BANBTE/SUB 2/O/SUB 9/.
550       TE2/SS BA/SS NB/SS O9/SS TE/SS O/SS; CU0.5BANBTE2O9/SS CU0.5/SS
550       TE2/SS BA/SS CU/SS NB/SS O9/SS TE/SS O/SS.

DOCUMENT=            1806
 AUTH     = ROTH
 DT       = 02
 KN       = B40891502884
 LG       = ENGL
 SN       = ISSN 0002-7820
 YR       = 89
000       3402468
002       B40891502884
010       JOURNAL PAPER; EXPERIMENTAL.
100       PHASE EQUILIBRIA AND CRYSTAL CHEMISTRY IN THE QUATERNARY SYSTEM
100       BA-SR-Y-CU-O IN AIR.
200       ROTH, R.S.; RAWN, C.J.; WHITLER, J.D.; CHIANG, C.K.; WONG-NG, W.K.
220       CERAMICS DIV., NAT. INST. OF STAND. ? TECHNOL., GAITHERSBURG, MD, USA
310       J. AM. CERAM. SOC. (USA)
330       MARCH 1989. VOL.72, NO.3, P.395-9, REF.13
350       ISSN 0002-7820, CODEN JACTAW
400       STUDIES IN THE SR-Y-CU-O AND BA-SR-Y-CU-O SYSTEMS HAVE REVEALED THAT
400       SR WILL SUBSTITUTE FOR BA IN (BA,SR)/SUB 2/YCU/SUB 3/O/SUB 6+X/ UP TO
400       ABOUT 60%. THERE ARE NO TERNARY COMPOUNDS IN THE SR-Y-CU-O SYSTEM
400       EQUIVALENT TO THE THREE TERNARY PHASES IN THE BA SYSTEM. A NEW BINARY
400       PHASE, 'SR/SUB 14/CU/SUB 24/O/SUB 41/' (CUO APPROXIMATELY= 63.158
400       MOL.%), WAS FOUND WHICH FORMS A SOLID SOLUTION WITH Y/SUB 2/O/SUB 3/
400       TO A SR:Y RATIO OF APPROXIMATELY 2:1. THIS PHASE CAN ALSO INCORPORATE
400       CONSIDERABLE AMOUNTS OF BA AND CA AND MANY OTHER LARGE IONS.
500       BARIUM COMPOUNDS; CRYSTAL CHEMISTRY; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; PHASE EQUILIBRIUM; SOLID SOLUTIONS; STRONTIUM
500       COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; PHASE EQUILIBRIA; CRYSTAL
510       CHEMISTRY; QUATERNARY SYSTEM; TERNARY PHASES; BINARY PHASE; SOLID
510       SOLUTION; BA-SR-Y-CU-O.
550       BASRYCUO/SS BA/SS CU/SS SR/SS O/SS Y/SS.

DOCUMENT=            1807
 AUTH     = KOHL
 DT       = 02
 KN       = B40891502948
 LG       = ENGL
 SN       = ISSN 0022-2291
 YR       = 89
000       3402532
002       B40891502948
010       JOURNAL PAPER; EXPERIMENTAL.
100       LOW-FIELD MAGNETIZATION CURVES OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ AND
100       BISRCACU/SUB 2/O/SUB 5.5/: EFFECTS OF JOSEPHSON MEDIUM.
200       KOHL, M.; ODEHNAL, M.; PLINTOVIC, M.; SAFRATA, S.
220       INST. OF PHYS., CZECHOSLOVAK ACAD. OF SCI., PRAGUE, CZECHOSLOVAKIA
310       J. LOW TEMP. PHYS. (USA)
330       MARCH 1989. VOL.74, NO.5-6, P.503-17, REF.38
350       ISSN 0022-2291, CODEN JLTPAC
400       THE AUTHORS REPORT THE MEASUREMENT OF DC MAGNETIZATION CURVES OF
400       THREE SAMPLES OF HIGH-T/SUB C/ SUPERCONDUCTORS IN RELATIVELY LOW
400       MAGNETIC FIELD OF +OR-50 MT AND AT TEMPERATURES T=4.2 K AND T=77 K BY
400       A SQUID SUSCEPTOMETER. THE SAMPLES WERE POLYCRYSTALLINE YBA/SUB
400       2/CU/SUB 3/O/SUB 7-X/, A SINGLE CRYSTAL OF YBA/SUB 2/CU/SUB 3/O/SUB
400       7-X/, AND POLYCRYSTALLINE BICASRCU/SUB 2/O/SUB 5.5/. THEY HAVE
400       ESPECIALLY STUDIED THE INFLUENCE OF THE JOSEPHSON MEDIUM INSIDE THEIR
400       SAMPLES ON THEIR LOW-FIELD MAGNETIZATION. THE AUTHORS HAVE FOUND
400       CLOSED HYSTERETIC LOOPS IN THE FIELD +OR-4 MT WITH 'VIRGIN' AND
400       'GRANULAR' SLOPES IN THE SAMPLE OF POLYCRYSTALLINE YBACUO AND CLEAR
400       FLUX JUMPS CORRESPONDING TO THE PENETRATION OF LOW-FIELD (JOSEPHSON)
400       VORTICES. THE PINNING OF THESE VORTICES IN THE AUTHORS' CASE IS
400       RATHER LOW. IN POLYCRYSTALLINE SAMPLES OF BICASRCUO, THEY HAVE FOUND
400       ONLY REVERSIBLE MAGNETIZATION CURVES CORRESPONDING TO VERY LOW
400       PINNING AND/OR TO RELATIVELY LOW NUMBER OF WEAK LINKS.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; FLUX PINNING;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT; MAGNETIC
500       HYSTERESIS; MAGNETISATION; MIXED STATE; STRONTIUM COMPOUNDS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; LOW FIELD MAGNETISATION; JOSEPHSON
510       MEDIUM; HIGH-T/SUB C/ SUPERCONDUCTORS; POLYCRYSTALLINE; SINGLE
510       CRYSTAL; CLOSED HYSTERETIC LOOPS; VORTICES; PINNING; WEAK LINKS; 4.2
510       K; 77 K; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/; BISRCACU/SUB 2/O/SUB 5.5/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; BISRCACU2O5.5/SS
550       O5.5/SS CU2/SS BI/SS CA/SS CU/SS SR/SS O/SS.
560       TEMPERATURE 4.2 E+00 K; TEMPERATURE 7.7 E+01 K.

DOCUMENT=            1808
 AUTH     = KOSOGOV
 DT       = 02
 KN       = B40891502955
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3402539
002       B40891502955
010       JOURNAL PAPER; EXPERIMENTAL.
100       IR REFLECTION AND RAMAN SPECTRA OF BI-SR-CA-CU-O SUPERCONDUCTING
100       COMPOUNDS.
200       KOSOGOV, O.V.; BELOUSOV, M.V.; VASIL'EV, V.A.; DAVYDOV, V.YU.; KIM
200       GVAN DYO; KOPYLOV, A.A.; PETRIKOV, V.D.; TRET'YAKOV, V.V.
220       V.I. UL'YANOV LENINGRAD ELECTROTECH. INST., ACAD. OF SCI., LENINGRAD,
220       USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       10 NOV. 1988. VOL.48, NO.9, P.488-90, REF.5
331       ENGLISH TRANSLATION: JETP LETT. (USA). 10 NOV. 1988. VOL.48, NO.9,
331       P.530-3. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       THE IR REFLECTION AND RAMAN SPECTRA OF BI-SR-CA-CU-O CERAMIC AND
400       SINGLE-CRYSTAL HIGH-TEMPERATURE SUPERCONDUCTORS HAVE BEEN MEASURED.
400       THE POLARIZATIONS OF THE VIBRATIONS CORRESPONDING TO 460 TO 630
400       CM/SUP -1/ HAVE BEEN DETERMINED. THE FREQUENCIES OF PLASMA VIBRATIONS
400       ARE ESTIMATED. THE WIDTH OF THE SUPERCONDUCTING GAP IS ALSO
400       ESTIMATED: 2 DELTA =250 CM/SUP -1/.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CERAMICS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; INFRARED SPECTRA OF INORGANIC SOLIDS; LATTICE
500       DYNAMICS; RAMAN SPECTRA OF INORGANIC SOLIDS; REFLECTIVITY; STRONTIUM
500       COMPOUNDS; SUPERCONDUCTING ENERGY GAP.
510       HIGH TEMPERATURE SUPERCONDUCTOR; IR REFLECTION; RAMAN SPECTRA;
510       SINGLE-CRYSTAL; POLARIZATIONS; VIBRATIONS; PLASMA VIBRATIONS;
510       SUPERCONDUCTING GAP; 460 TO 630 CM/SUP -1/; BI-SR-CA-CU-O CERAMIC.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS.
560       WAVELENGTH 1.6 E-05 TO 2.2 E-05 M.

DOCUMENT=            1809
 AUTH     = TSVELIK
 DT       = 02
 KN       = B40891502956
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3402540
002       B40891502956
010       JOURNAL PAPER; THEORETICAL.
100       POSSIBLE ANALOGIES BETWEEN PEROVSKITE SUPERCONDUCTORS AND
100       HEAVY-FERMION SUPERCONDUCTORS.
200       TSVELIK, A.M.
220       L.D. LANDAU INST. OF THEOR. PHYS., ACAD. OF SCI., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       10 NOV. 1988. VOL.48, NO.9, P.502-4, REF.10
331       ENGLISH TRANSLATION: JETP LETT. (USA). 10 NOV. 1988. VOL.48, NO.9,
331       P.544-7. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       THE COUPLING OF ELECTRONS WITH ANHARMONIC PHONONS IN HIGH-TEMPERATURE
400       SUPERCONDUCTORS IS DESCRIBED BY A KONDO-LATTICE HAMILTONIAN.
500       ELECTRON-PHONON INTERACTIONS; HEAVY FERMION SUPERCONDUCTORS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; KONDO EFFECT.
510       PEROVSKITE SUPERCONDUCTORS; HEAVY-FERMION SUPERCONDUCTORS; ELECTRONS;
510       ANHARMONIC PHONONS; HIGH-TEMPERATURE SUPERCONDUCTORS; KONDO-LATTICE
510       HAMILTONIAN.

DOCUMENT=            1810
 AUTH     = GOR'KOV
 DT       = 02
 KN       = B40891502957
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3402541
002       B40891502957
010       JOURNAL PAPER; THEORETICAL.
100       LOCALIZED AND DELOCALIZED STATES AND THE PROPERTIES OF THE NORMAL
100       PHASE OF RECENTLY DISCOVERED SUPERCONDUCTORS.
200       GOR'KOV, L.P.; SOKOL, A.V.
220       L.D. LANDAU INST. OF THEOR. PHYS., ACAD. OF SCI., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       10 NOV. 1988. VOL.48, NO.9, P.505-7, REF.5
331       ENGLISH TRANSLATION: JETP LETT. (USA). 10 NOV. 1988. VOL.48, NO.9,
331       P.547-50. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       THE PRINCIPAL CHARACTERISTICS OF THE MAGNETIC INTERACTIONS HAVE BEEN
400       DETERMINED IN A TWO-BAND MODEL FOR METAL-OXIDE SUPERCONDUCTORS.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LOCALISED ELECTRON STATES.
510       HIGH TEMPERATURE SUPERCONDUCTORS; LOCALIZED STATES; DELOCALIZED
510       STATES; NORMAL PHASE; MAGNETIC INTERACTIONS; TWO-BAND MODEL;
510       METAL-OXIDE SUPERCONDUCTORS.

DOCUMENT=            1811
 AUTH     = KOCHAROV
 DT       = 02
 KN       = B40891502958
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3402542
002       B40891502958
010       JOURNAL PAPER; THEORETICAL.
100       BRAGG-COULOMB DOUBLE-FLOW MECHANISM FOR HIGH-T/SUB C/
100       SUPERCONDUCTIVITY.
200       KOCHAROVSKII, V.V.; KOCHAROVSKII, VL.V.
220       INST. OF APPL. PHYS., ACAD. OF SCI., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       25 NOV. 1988. VOL.48, NO.10, P.523-7, REF.7
331       ENGLISH TRANSLATION: JETP LETT. (USA). 25 NOV. 1988. VOL.48, NO.10,
331       P.565-71. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       A MECHANISM FOR A HIGH-TEMPERATURE SUPERCONDUCTIVITY BASED ON THE
400       BRAGG REFLECTION OF ELECTRON PAIRS FROM A LATTICE OF CONDUCTING
400       ATOMIC LAYERS IS PROPOSED. THE COULOMB REPULSION SCREENED BY THESE
400       LAYERS IS SHOWN TO LEAD TO A HIGH-T/SUB C/ SUPERCONDUCTIVITY THROUGH
400       THE FORMATION OF TWO MUTUALLY INDUCING COUNTERFLOWS OF PAIRED
400       ELECTRONS.
500       HIGH-TEMPERATURE SUPERCONDUCTORS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; BRAGG-COULOMB DOUBLE-FLOW
510       MECHANISM; HIGH-T/SUB C/ SUPERCONDUCTIVITY; BRAGG REFLECTION;
510       ELECTRON PAIRS; CONDUCTING ATOMIC LAYERS; COULOMB REPULSION.

DOCUMENT=            1812
 AUTH     = ALEKSEEV
 DT       = 02
 KN       = B40891502959
 LG       = ENGL
 SN       = ISSN 0370-274X
 YR       = 88
000       3402543
002       B40891502959
010       JOURNAL PAPER; EXPERIMENTAL.
100       EFFECT OF PRESSURE ON THE SPECIFIC HEAT OF GDBA/SUB 2/CU/SUB 3/O/SUB
100       7-X/.
200       ALEKSEEVSKII, N.E.; GUSEV, A.V.; DEVYATYKH, G.G.; KABANOV, A.V.;
200       NAROZHNYI, V.I.; NIZHANKOVSKII, V.I.; KHLYBOV, E.P.
220       INST. OF CHEM., ACAD. OF SCI., USSR
310       PIS'MA ZH. EKSP. TEOR. FIZ. (USSR)
330       25 NOV. 1988. VOL.48, NO.10, P.540-2, REF.11
331       ENGLISH TRANSLATION: JETP LETT. (USA). 25 NOV. 1988. VOL.48, NO.10,
331       P.585-7. CODEN JTPLA2. ISSN 0021-3640
350       ISSN 0370-274X, CODEN PZETAB
400       MEASUREMENTS OF THE SPECIFIC HEAT OF GDBA/SUB 2/CU/SUB 3/O/SUB 7-X/
400       UNDER PRESSURE HAVE BEEN CARRIED OUT OVER THE TEMPERATURE INTERVAL
400       2-4 K. IT HAS BEEN OBSERVED THAT T/SUB N/ INCREASES FROM 2.23 TO
400       2.265 K UNDER A PRESSURE APPROXIMATELY 5 KBAR, WITH DT/SUB
400       N//DP=7*10/SUP -6/ K/BAR.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       GADOLINIUM COMPOUNDS; HIGH-PRESSURE EFFECTS IN SOLIDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC SUPERCONDUCTORS; SPECIFIC
500       HEAT OF SOLIDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; PRESSURE EFFECT; ANTIFERROMAGNET;
510       NEEL TEMPERATURE; SPECIFIC HEAT; 2 TO 4 K; 5 KBAR; GDBA/SUB 2/CU/SUB
510       3/O/SUB 7-X/.
550       GDBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS GD/SS O/SS.
560       TEMPERATURE 2.0 E+00 TO 4.0 E+00 K; PRESSURE 5.0 E+08 PA.

DOCUMENT=            1813
 AUTH     = PARKS
 DT       = 02
 KN       = B40891503080
 LG       = ENGL
 SN       = ISSN 0022-4596
 YR       = 89
000       3402664
002       B40891503080
010       JOURNAL PAPER; EXPERIMENTAL.
100       DIRECT CALORIMETRIC DETERMINATION OF ENERGETICS OF OXYGEN IN YBA/SUB
100       2/CU/SUB 3/O/SUB X/.
200       PARKS, M.E.; NAVROTSKY, A.; MOCALA, K. / TAKAYAMA-MUROMACHI, E.;
200       JACOBSON, A.; DAVIES, P.K.
220       DEPT. OF GEOL. ? GEOPHYS. SCI., PRINCETON UNIV., NJ, USA
310       J. SOLID STATE CHEM. (USA)
330       MARCH 1989. VOL.79, NO.1, P.53-62, REF.25
350       ISSN 0022-4596, CODEN JSSCBI
400       THE ENTHALPY OF OXIDATION OF YBA/SUB 2/CU/SUB 3/O/SUB X/
400       (5.97<OR=X<OR=6.94) WAS MEASURED DIRECTLY BY HIGH-TEMPERATURE
400       REACTION CALORIMETRY. THE PARTIAL MOLAR ENTHALPY OF OXYGEN DISSOLVING
400       IN THE STRUCTURE IS CONSTANT AT -237+OR-5 KJ/MOLE O/SUB 2/ OVER THE
400       WHOLE COMPOSITION RANGE. NO CHANGE DELTA H(O/SUB 2/) IS OBSERVED AT
400       EITHER THE TETRAGONAL/ORTHORHOMBIC TRANSITION OR AT X=6.5, THE
400       COMPOSITION IN WHICH ALL COPPER COULD BE DIVALENT. THIS BEHAVIOR
400       SUPPORTS STRUCTURAL MODELS IN WHICH THE CHANGE IN SPECIATION FROM X=6
400       TO X=7 IS VERY GRADUAL, WITH CU/SUP +/ AND CU/SUP 3+/ (OR THEIR
400       ELECTRONIC EQUIVALENTS IN THE OXYGEN P-BAND) COEXISTING IN
400       CONCENTRATIONS WHICH VARY SMOOTHLY WITH COMPOSITION. IT IS ALSO
400       CONSISTENT WITH MODELS WHICH CONSIDER THE SOLID SOLUTION SERIES TO BE
400       A COMPLEX INTERGROWTH OF MICRODOMAINS OF OXIDIZED AND REDUCED END
400       MEMBERS. THE OBSERVATIONS RULE OUT THAT THE COMPOSITION YBA/SUB
400       2/CU/SUB 3/O/SUB 6.5/ IS ANY SORT OF 'TITRATION ENDPOINT' WITH VERY
400       DIFFERENT DEFECT CHEMISTRY ON EITHER SIDE.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       ENTHALPY; HEAT OF REACTION; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       OXIDATION; SOLID SOLUTIONS; THERMAL ANALYSIS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; OXIDATION ENTHALPY; COMPOSITION
510       DEPENDENCE; HIGH-TEMPERATURE REACTION CALORIMETRY; PARTIAL MOLAR
510       ENTHALPY; TETRAGONAL/ORTHORHOMBIC TRANSITION; STRUCTURAL MODELS;
510       SOLID SOLUTION SERIES; COMPLEX INTERGROWTH; MICRODOMAINS; DEFECT
510       CHEMISTRY; YBA/SUB 2/CU/SUB 3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1814
 AUTH     = QIU
 DT       = 02
 KN       = B40891503196
 LG       = ENGL
 SN       = ISSN 0304-8853
 YR       = 89
000       3402780
002       B40891503196
010       JOURNAL PAPER; EXPERIMENTAL.
100       THE ANTIFERROMAGNETISM IN YBA/SUB 2/CU/SUB 3/O/SUB 6+ DELTA / STUDIED
100       BY MOSSBAUER SPECTROSCOPY.
200       QIU, Z.Q.; DU, Y.W.; TANG, H.; WALKER, J.C.
220       DEPT. OF PHYS., JOHNS HOPKINS UNIV., BALTIMORE, MD, USA
310       J. MAGN. MAGN. MATER. (NETHERLANDS)
330       MARCH 1989. VOL.78, NO.3, P.359-63, REF.10
350       ISSN 0304-8853, CODEN JMMMDC
400       A SMALL AMOUNT OF /SUP 57/FE (ABOUT 0.3%) WAS USED TO SUBSTITUTE FOR
400       CU IN THE Y-BA-CU-O 1-2-3 COMPOUNDS. WITH THIS SMALL AMOUNT OF FE,
400       THE POSSIBILITY OF FE-FE INTERACTIONS CAN BE IGNORED AND THE /SUP
400       57/FE IONS SERVE ONLY AS A PROBE TO STUDY THE MAGNETIC STRUCTURE OF
400       THE HIGH T/SUB C/ SUPERCONDUCTOR COMPOUNDS. AS A RESULT OF ANNEALING
400       SAMPLES IN FLOWING AR GAS AT 750 DEGREES C FOR 10 H, ABOUT 30% OF THE
400       IRON IONS MIGRATE FROM CU(1) SITES TO CU(2) SITES. THE MOSSBAUER
400       SPECTRUM OF THE FE AT THE CU(2) SITE SHOWS THAT THE CU(2)-O/SUB 2/ IS
400       ANTIFERROMAGNETICALLY ORDERED WHICH AGREES WITH THE NEUTRON
400       DIFFRACTION RESULT. THE TEMPERATURE DEPENDENCE OF THE HYPERFINE FIELD
400       OF THE MAGNETIC COMPONENT FOLLOWS A T/SUP 3/2/ LAW, INDICATING A 3
400       DIMENSIONAL SPIN WAVE EXCITATION. THIS IS CONSISTENT WITH THE
400       MAGNETIC ORDERING OF THE FE PROBE AT THE CU(1) SITE WHICH THE AUTHORS
400       OBSERVE AT 4.2 K. THE ANALYSIS OF THE MOSSBAUER SPECTRA AT DIFFERENT
400       TEMPERATURES AND WITH DIFFERENT OXYGEN DEFICIENCIES ARE ALSO
400       DISCUSSED.
500       ANNEALING; ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM
500       COMPOUNDS; CRYSTAL HYPERFINE FIELD INTERACTIONS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MAGNETIC STRUCTURE; MAGNETIC SUPERCONDUCTORS;
500       MOSSBAUER EFFECT; SPIN WAVES; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; O DEFICIENCIES; ANTIFERROMAGNETISM;
510       MOSSBAUER SPECTROSCOPY; /SUP 57/FE; 1-2-3 COMPOUNDS; FE-FE
510       INTERACTIONS; MAGNETIC STRUCTURE; HIGH T/SUB C/ SUPERCONDUCTOR
510       COMPOUNDS; ANNEALING; TEMPERATURE DEPENDENCE; HYPERFINE FIELD; SPIN
510       WAVE EXCITATION; MAGNETIC ORDERING; 750 DEGC; 4.2 K; YBA/SUB 2/CU/SUB
510       3/O/SUB 6+ DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 1.02 E+03 K; TEMPERATURE 4.2 E+00 K.

DOCUMENT=            1815
 AUTH     = PETRISOR
 DT       = 02
 KN       = B40891503197
 LG       = ENGL
 SN       = ISSN 0304-8853
 YR       = 89
000       3402781
002       B40891503197
010       JOURNAL PAPER; EXPERIMENTAL.
100       MAGNETIC SUSCEPTIBILITY OF THE HIGH TEMPERATURE SUPERCONDUCTOR
100       YBA/SUB 2/CU/SUB 3/F/SUB 2/O/SUB Y/.
200       PETRISOR, T.; GIURGIU, A.; POP, I.
220       NAT. INST. OF METROL., LAB, CLUJ-NAPOCA, ROMANIA
310       J. MAGN. MAGN. MATER. (NETHERLANDS)
330       MARCH 1989. VOL.78, NO.3, P.427-9, REF.4
350       ISSN 0304-8853, CODEN JMMMDC
400       MAGNETIC SUSCEPTIBILITY MEASUREMENTS ARE PERFORMED ON THE HIGH T/SUB
400       C/ SUPERCONDUCTOR YBA/SUB 2/CU/SUB 3/F/SUB 2/O/SUB Y/. THE
400       TEMPERATURE DEPENDENCE OF THE MAGNETIC SUSCEPTIBILITY OF THE YBA/SUB
400       2/CU/SUB 3/F/SUB 2/O/SUB Y/ SYSTEM PRESENTS A LARGE DIAMAGNETIC
400       DEVIATION AT TEMPERATURES BELOW 140 K AND A SMALLER DIAMAGNETIC
400       DEVIATION BELOW 270 K. THE DIAMAGNETIC RESPONSE BELOW 270 K INDICATES
400       THE EXISTENCE OF A SUPERCONDUCTING PHASE WITH T/SUB C/=270 K IN THIS
400       SYSTEM.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       SUSCEPTIBILITY; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MAGNETIC SUSCEPTIBILITY; HIGH T/SUB
510       C/ SUPERCONDUCTOR; TEMPERATURE DEPENDENCE; LARGE DIAMAGNETIC
510       DEVIATION; 270 K; YBA/SUB 2/CU/SUB 3/F/SUB 2/O/SUB Y/.
550       YBA2CU3F2O/SS BA2/SS CU3/SS BA/SS CU/SS F2/SS F/SS O/SS Y/SS.
560       TEMPERATURE 2.7 E+02 K.

DOCUMENT=            1816
 AUTH     = SONG
 DT       = 02
 KN       = B40891503388
 LG       = ENGL
 SN       = ISSN 0250-7862
 YR       = 88
000       3402972
002       B40891503388
010       JOURNAL PAPER; EXPERIMENTAL.
100       GRAIN BOUNDARIES IN YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ SUPERCONDUCTING
100       MATERIAL.
200       SONG XIANGYUN; FENG JINGWEI; LI CHENG'EN; WEN SHULIN
220       SHANGHAI INST. OF CERAMICS, ACAD. SINICA, CHINA
310       KEXUE TONGBAO (SCI. BULL.) (CHINA)
330       NOV. 1988. VOL.33, NO.22, P.1905-8, REF.4
350       ISSN 0250-7862, CODEN KHTPBU
400       FOR THE POLYCRYSTALLINE OXIDE, Y-BA-CU-O, ITS GRAIN BOUNDARY FEATURES
400       AND PROPERTIES MIGHT HAVE STRONG INFLUENCES ON THE SUPERCONDUCTIVITY
400       PROPERTIES. THE AUTHORS STUDY GRAIN BOUNDARY FEATURES, CHEMICAL
400       COMPOSITION AND THE STRUCTURE OF THE GRAINS IN YBA/SUB 2/CU/SUB
400       3/O/SUB 7-X/.
500       BARIUM COMPOUNDS; ELECTRON MICROSCOPE EXAMINATION OF MATERIALS; GRAIN
500       BOUNDARIES; HIGH-TEMPERATURE SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; GRAIN BOUNDARIES; MICROSTRUCTURE;
510       ELECTRON MICROSCOPY; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1817
 AUTH     = VERHOEVE
 DT       = 02
 KN       = B40891503903
 LG       = ENGL
 SN       = ISSN 0026-0800
 YR       = 89
000       3403487
002       B40891503903
010       JOURNAL PAPER; EXPERIMENTAL.
100       A METHOD FOR MEASURING OPTICAL TWIN SPACINGS IN THE SUPERCONDUCTING
100       MATERIAL YBA/SUB 2/CU/SUB 3/O/SUB X/.
200       VERHOEVEN, J.D.
220       DEPT. OF MATER. SCI. ? ENG., IOWA STATE UNIV., AMES, IA, USA
310       METALLOGRAPHY (USA)
330       MAY 1989. VOL.22, NO.3, P.245-52, REF.7
350       ISSN 0026-0800, CODEN MEIJAP
400       THE OPTICAL TWINS IN GRAINS OF THE HIGH TEMPERATURE SUPERCONDUCTING
400       MATERIAL, YBA/SUB 2/CU/SUB 3/O/SUB X/, LIE ALONG (110) PLANES, AND
400       THE LONG BOUNDARIES OF ELONGATED GRAINS ARE BASAL PLANES. EQUATIONS
400       ARE PRESENTED UTILIZING THESE FACTS, WHICH ALLOW THE APPARENT TWIN
400       SPACING TO BE CONVERTED TO TRUE TWIN SPACING BY MEASUREMENT OF THE
400       ANGLES BETWEEN TWIN SETS AND THE BASAL PLANE BOUNDARY ON THE POLISH
400       SURFACE. THE TRUE THICKNESS OF THE ELONGATED GRAINS IN THEIR C AXIS
400       DIRECTION MAY ALSO BE DETERMINED FROM THE ANALYSIS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; TWIN BOUNDARIES;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; TWIN BOUNDARIES; OPTICAL TWIN
510       SPACINGS; SUPERCONDUCTING MATERIAL; GRAINS; BASAL PLANE BOUNDARY;
510       POLISH SURFACE; THICKNESS; YBA/SUB 2/CU/SUB 3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1818
 AUTH     = DAVYDOV
 DT       = 02
 KN       = B40891503982
 LG       = ENGL
 SN       = ISSN 0951-7715
 YR       = 89
000       3403566
002       B40891503982
010       JOURNAL PAPER; THEORETICAL.
100       NONLINEAR BISOLITON MODEL OF HIGH-TEMPERATURE SUPERCONDUCTIVITY OF
100       CERAMIC COMPOUNDS.
200       DAVYDOV, A.S.
220       INST. FOR THEOR. PHYS., ACAD. OF SCI., KIEV, UKRAINIAN SSR, USSR
310       NONLINEARITY (UK)
330       MAY 1989. VOL.2, NO.2, P.383-9, REF.9
350       ISSN 0951-7715, CODEN NONLE5
400       A BISOLITON THEORY OF HIGH-TEMPERATURE SUPERCONDUCTIVITY OF CERAMIC
400       COMPOUNDS IS DEVELOPED ON THE BASIS OF A QUASI-ONE-DIMENSIONAL MODEL
400       WITH STRONG ELECTRON-PHONON INTERACTION. BISOLITONS ARE DESCRIBED BY
400       THREE COUPLED EQUATIONS. THE EXPLICIT FORM OF THE WAVEFUNCTION OF THE
400       BISOLITON CONDENSATE IS OBTAINED. THE CONDENSATE STABILITY CONDITIONS
400       AND BISOLITONS CONDENSATE GENERATION AT THE METAL-SUPERCONDUCTOR
400       BOUNDARY ARE DISCUSSED. THE REASON WHY DIFFERENT GAP WIDTHS ARE
400       OBTAINED IN TUNNELLING AND SPECTROSCOPIC MEASUREMENTS IS ALSO
400       DISCUSSED.
500       CERAMICS; ELECTRON-PHONON INTERACTIONS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SOLITONS; STRONG-COUPLING SUPERCONDUCTORS;
500       SUPERCONDUCTING ENERGY GAP.
510       NONLINEAR BISOLITON THEORY; HIGH-TEMPERATURE SUPERCONDUCTIVITY;
510       CERAMIC COMPOUNDS; QUASI-ONE-DIMENSIONAL MODEL; STRONG
510       ELECTRON-PHONON INTERACTION; COUPLED EQUATIONS; WAVEFUNCTION;
510       CONDENSATE STABILITY CONDITIONS; BISOLITONS CONDENSATE GENERATION;
510       METAL-SUPERCONDUCTOR BOUNDARY; GAP WIDTHS.

DOCUMENT=            1819
 AUTH     = RAVEAU
 DT       = 06
 KN       = B40891504067
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403651
002       B40891504067
010       CONFERENCE PAPER; EXPERIMENTAL.
100       NEW TRENDS IN THE CRYSTAL CHEMISTRY OF HIGH-T/SUB C/ SUPERCONDUCTORS.
200       RAVEAU, B.; HERVIEU, M.; MICHEL, C.; PROVOST, J.
220       LAB. DE CRISTALLOGR. ET SCI. DES MATER., INST. DES SCI. DE LA MATIERE
220       ET DU RAYONNEMENT, CAEN, FRANCE
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.281-8, REF.46
350       ISSN 0921-5093, CODEN MSAPE3
400       THE 90 K SUPERCONDUCTOR YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / IS A
400       COMPLEX OXYGEN-DEFICIENT PEROVSKITE WHOSE CRYSTAL CHEMISTRY IS
400       PRESENTED HERE: THE HIGH-RESOLUTION ELECTRON MICROSCOPY STUDY OF
400       DIFFERENT COMPOSITIONS ALLOWS ORDER-DISORDER AND NON-STOICHIOMETRY
400       PHENOMENA TO BE UNDERSTOOD. THE SUPERCONDUCTING PROPERTIES OF THIS
400       OXIDE ARE INTERPRETED IN TERMS OF DISPROPORTIONATION OF CU(II) INTO
400       CU(III) AND CU(I). BESIDES THIS LATTER OXIDE, TWO OTHER FAMILIES,
400       BISMUTH-COPPER AND THALLIUM-COPPER OXIDES, ARE DESCRIBED WHOSE T/SUB
400       C/ RANGES FROM 85 TO 125 K. THESE TWO RECENT SERIES BELONG WITH THE
400       LA/SUB 2/CUO/SUB 4/-TYPE OXIDE TO THE SAME STRUCTURAL FAMILY WHICH
400       CONSISTS OF INTERGROWTHS OF DISTORTED ROCK SALT-TYPE LAYERS AND
400       OXYGEN-DEFICIENT PEROVSKITE LAYERS. THE POSSIBLE DYNAMIC TRANSFER OF
400       HOLES FROM THALLIUM LAYERS TOWARDS COPPER LAYERS IN THOSE OXIDES IS
400       DISCUSSED.
500       CRYSTAL CHEMISTRY; ELECTRON MICROSCOPE EXAMINATION OF MATERIALS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; CRYSTAL CHEMISTRY; HIGH-RESOLUTION
510       ELECTRON MICROSCOPY; COMPOSITIONS; DISPROPORTIONATION; DISTORTED ROCK
510       SALT-TYPE LAYERS; PEROVSKITE LAYERS; YBA/SUB 2/CU/SUB 3/O/SUB 7-
510       DELTA /; TL/SUB 2/BA/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB 10/; BI/SUB
510       2/SR/SUB 2/CACU/SUB 2/O/SUB 7/.
550       TL2BA2CA2CU3O10/SS BA2/SS CA2/SS CU3/SS O10/SS TL2/SS BA/SS CA/SS
550       CU/SS TL/SS O/SS; BI2SR2CACU2O7/SS BI2/SS CU2/SS SR2/SS BI/SS CA/SS
550       CU/SS O7/SS SR/SS O/SS; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS
550       Y/SS.

DOCUMENT=            1820
 AUTH     = MEDELIUS
 DT       = 06
 KN       = B40891504068
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403652
002       B40891504068
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SOLUTION ROUTES TO SYNTHESIZE SUPERCONDUCTING OXIDES.
200       MEDELIUS, H.; ROWCLIFFE, D.J.
220       DIV. OF CERAMICS, R. INST. OF TECHNOL., STOCKHOLM, SWEDEN
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.289-92, REF.13
350       ISSN 0921-5093, CODEN MSAPE3
400       DIFFERENT SOLUTION ROUTES TO SYNTHESIZE SUPERCONDUCTING OXIDES ARE
400       REVIEWED AND COMPARED WITH THE MORE WIDELY USED METHOD OF GRINDING
400       AND REACTION. ONE ROUTE, I.E. FREEZE DRYING, IS DESCRIBED IN DETAIL.
400       THE SPECIFIC SALTS AND SOLUTION PH ARE PARTICULARLY IMPORTANT
400       PARAMETERS. SOLUTIONS CONTAINING ONLY NITRATES DRY WELL BUT MELT ON
400       CALCINATION. HOWEVER, ACETATE AND NITRATE MIXTURES SHOW A DIFFERENT
400       DRYING BEHAVIOUR BUT YIELD A POWDER OF AGGLOMERATED SUBMICRON
400       PARTICLES ON CALCINATION. SAMPLES SINTERED OUT OF THESE POWDERS SHOW
400       SHARP TRANSITIONS AND VERY GOOD MAGNETIC BEHAVIOUR.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MATERIALS PREPARATION.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SYNTHESIS; OXIDES; SOLUTION; FREEZE
510       DRYING; CALCINATION; POWDER; AGGLOMERATED SUBMICRON PARTICLES;
510       TRANSITIONS.

DOCUMENT=            1821
 AUTH     = ROMANO
 DT       = 06
 KN       = B40891504069
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403653
002       B40891504069
010       CONFERENCE PAPER; EXPERIMENTAL.
100       THE CHEMISTRY AND PROPERTIES OF GRAIN BOUNDARIES IN CHEMICALLY
100       THINNED Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/.
200       ROMANO, L.T.; WILSHAW, P.R.; LONG, N.J.; GROVENOR, C.R.M.
220       DEPT. OF METALL. ? SCI. OF MATER., OXFORD UNIV., UK
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.293-8, REF.12
350       ISSN 0921-5093, CODEN MSAPE3
400       GRAIN BOUNDARY CHEMISTRY AND ITS RELATIONSHIP TO GRAIN MISORIENTATION
400       OF BULK Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/ HAS BEEN INVESTIGATED
400       USING A COMBINATION OF CONVENTIONAL TRANSMISSION ELECTRON MICROSCOPY
400       AND HIGH-RESOLUTION SCANNING TRANSMISSION ELECTRON MICROSCOPY. A
400       NOVEL CHEMICAL THINNING TECHNIQUE HAS BEEN DEVELOPED WHICH REVEALS
400       MORE THIN AREA THAN THE STANDARD METHODS OF DRY GRINDING OR ION
400       MILLING, AND IS THEREFORE MORE SUITABLE FOR DETAILED CHEMICAL
400       ANALYSIS OF SEVERAL TYPES OF GRAIN BOUNDARY. THESE RESULTS WERE
400       COMPARED WITH THE CRITICAL CURRENT J/SUB C/ MEASUREMENTS FROM THE
400       SAME BATCH OF MATERIAL. THE J/SUB C/ OF RANDOMLY ORIENTED MATERIAL
400       WAS FOUND TO INCREASE DIRECTLY WITH DECREASING AMOUNTS OF GRAIN
400       BOUNDARY PHASES.
500       BARIUM COMPOUNDS; CRITICAL CURRENTS; GRAIN BOUNDARIES;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SCANNING ELECTRON MICROSCOPE
500       EXAMINATION OF MATERIALS; TRANSMISSION ELECTRON MICROSCOPE
500       EXAMINATION OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; GRAIN BOUNDARIES; CHEMICALLY
510       THINNED; GRAIN MISORIENTATION; TRANSMISSION ELECTRON MICROSCOPY;
510       HIGH-RESOLUTION SCANNING TRANSMISSION ELECTRON MICROSCOPY; CRITICAL
510       CURRENT; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1822
 AUTH     = SCHEEL
 DT       = 06
 KN       = B40891504070
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403654
002       B40891504070
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EFFECT OF CATION NON-STOICHIOMETRY AND OF PROCESS PARAMETERS ON
100       PROPERTIES OF YBCO.
200       SCHEEL, H.J. / LICCI, F.; BESAGNI, T.; BOLZONI, F.; CATTANI, S.;
200       ECKERT, D.; SALVIATI, G.
220       DEPT. OF PHYS., GENEVA UNIV., SWITZERLAND
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.299-305, REF.3
350       ISSN 0921-5093, CODEN MSAPE3
400       THE ROLE OF SMALL DEVIATIONS FROM THE 1Y:2BA:3CU RATIO OF YBCO AND OF
400       VARIOUS PROCESSING PARAMETERS HAS BEEN STUDIED BY SYSTEMATIC
400       CHARACTERIZATION OF THE CERAMICS OBTAINED. SIGNIFICANT EFFECTS ON
400       DENSITY, RESISTIVITY, T/SUB C/, DELTA T/SUB C/, MEISSNER AND A.C.
400       SUSCEPTIBILITY WERE OBSERVED. LOW-TEMPERATURE SPECIFIC HEAT
400       MEASUREMENTS OF STOICHIOMETRIC SAMPLES WITH DELTA T/SUB C/ OF LESS
400       THAN 1 K SHOWED VERY LOW GAMMA VALUES. THE RESULTS COULD BE
400       INTERPRETED TO SOME EXTENT BY SCANNING ELECTRON MICROSCOPY
400       PHOTOGRAPHS AND BY TRACES OF SECONDARY PHASES DETECTED BY X-RAY
400       DIFFRACTION.
500       BARIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MAGNETIC SUSCEPTIBILITY; MEISSNER EFFECT; SCANNING ELECTRON
500       MICROSCOPE EXAMINATION OF MATERIALS; SPECIFIC HEAT OF SOLIDS;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; X-RAY DIFFRACTION EXAMINATION
500       OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; CATION NONSTOICHIOMETRY; MEISSNER
510       EFFECT; PROCESS PARAMETERS; CERAMICS; DENSITY; RESISTIVITY;
510       SUSCEPTIBILITY; SPECIFIC HEAT; SCANNING ELECTRON MICROSCOPY; X-RAY
510       DIFFRACTION; YBA/SUB 2/CU/SUB 3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1823
 AUTH     = MURAYAMA
 DT       = 06
 KN       = B40891504071
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403655
002       B40891504071
010       CONFERENCE PAPER; EXPERIMENTAL.
100       NEW OXYGEN-DEFICIENT PEROVSKITE PHASE IN THE LA/SUB 1-X/SR/SUB
100       X/CUO/SUB 3-Y/ SYSTEM.
200       MURAYAMA, N.; TORII, Y.
220       GOV. IND. RES. INST., NAGOYA, JAPAN
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.307-10, REF.12
350       ISSN 0921-5093, CODEN MSAPE3
400       IN THE LA/SUB 1-X/SR/SUB X/CUO/SUB 3-Y/ SYSTEM, A NEW
400       NON-STOICHIOMETRIC PEROVSKITE SOLID SOLUTION WAS FOUND TO EXIST IN A
400       NARROW RANGE OF 0.200<OR=X<OR=0.250. THIS PEROVSKITE PHASE HAS A
400       TETRAGONAL DISTORTION BASED ON A JAHN-TELLER EFFECT OF THE COPPER
400       ION. THE LATTICE PARAMETERS ARE CLOSELY RELATED TO THOSE OF THE
400       SIMPLE CUBIC PEROVSKITE: A=10.8492(6) AND C=3.8628(4) AA FOR X=0.200,
400       AND A=10.8296(8) AND C=3.8623(5) AA FOR X=0.250, WHERE A=2(2/SUP
400       1/2/)C. THESE PEROVSKITE COMPOUNDS EXHIBITED METALLIC CONDUCTIVITY
400       AND NO SUPERCONDUCTING TRANSITION WAS OBSERVED ABOVE 10 K. WITH
400       INCREASING SR CONTENT, THE CRYSTAL LATTICES CONTRACTED AND THE
400       RESISTIVITY RATIO OF RHO (T) TO RHO /SUB 290/ DECREASED. WHEN
400       ANNEALED AT 880 DEGREES C IN A FLOWING N/SUB 2/ GAS, LA/SUB
400       0.75/SR/SUB 0.25/CUO/SUB 2.52/ DECOMPOSED TO SUPERCONDUCTING LA/SUB
400       2-X/SR/SUB X/CUO/SUB 4/, LA/SUB 2/SRCU/SUB 2/O/SUB 6/ AND UNKNOWN
400       PHASES.
500       CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; JAHN-TELLER EFFECT; LANTHANUM COMPOUNDS; STRONTIUM
500       COMPOUNDS; SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; PEROVSKITE SOLID SOLUTION;
510       TETRAGONAL DISTORTION; JAHN-TELLER EFFECT; LATTICE PARAMETERS;
510       CONDUCTIVITY; SUPERCONDUCTING TRANSITION; LA/SUB 1-X/SR/SUB X/CUO/SUB
510       3-Y/.
550       LASRCUO/SS CU/SS LA/SS SR/SS O/SS.

DOCUMENT=            1824
 AUTH     = WHITE
 DT       = 06
 KN       = B40891504072
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403656
002       B40891504072
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ION IMPLANTATION AND THERMAL ANNEALING OF HIGH-T/SUB C/ SINGLE
100       CRYSTALS OF YBA/SUB 2/CU/SUB 3/O/SUB X/.
200       WHITE, C.W.; MCCALLUM, J.C.; BOATNER, L.A.
220       SOLID STATE DIV., OAK RIDGE, NAT. LAB., TN, USA
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.311-15, REF.7
350       ISSN 0921-5093, CODEN MSAPE3
400       RUTHERFORD BACKSCATTERING SPECTROMETRY HAS BEEN USED TO STUDY THE
400       EFFECTS OF ION IMPLANTATION AND THERMAL ANNEALING ON SINGLE CRYSTALS
400       OF YBA/SUB 2/CU/SUB 3/O/SUB X/. THE STRUCTURAL DISORDER INDUCED BY
400       ION IMPLANTATION RESULTS IN SIGNIFICANT CHANGES IN THE NEAR-SURFACE
400       COMPOSITION DURING SUBSEQUENT THERMAL PROCESSING. COMPOSITIONAL
400       CHANGES IN THE NEAR-SURFACE REGION OF THE YBA/SUB 2/CU/SUB 3/O/SUB X/
400       SINGLE CRYSTALS WERE OBSERVED AFTER ANNEALING OXYGEN- OR
400       COPPER-IMPLANTED CRYSTALS AT TEMPERATURES OF 500 DEGREES C OR HIGHER
400       IN VARIOUS ATMOSPHERES. UNIMPLANTED CRYSTALS ARE NOT AFFECTED BY
400       IDENTICAL PROCESSING CONDITIONS. PRELIMINARY RESULTS SHOW THAT
400       SINTERED POLYCRYSTALLINE CERAMIC YBA/SUB 2/CU/SUB 3/O/SUB X/ ALSO
400       UNDERGOES COMPOSITIONAL CHANGES AS A RESULT OF ION IMPLANTATION AND
400       THERMAL ANNEALING.
500       ANNEALING; BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; ION
500       IMPLANTATION; RUTHERFORD BACKSCATTERING; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; THERMAL ANNEALING; RUTHERFORD
510       BACKSCATTERING; ION IMPLANTATION; STRUCTURAL DISORDER; NEAR-SURFACE
510       COMPOSITION; CERAMIC; YBA/SUB 2/CU/SUB 3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1825
 AUTH     = AKINAGA
 DT       = 06
 KN       = B40891504073
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403657
002       B40891504073
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SUPERCONDUCTING WEAK LINK IN YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
100       CERAMIC FILMS.
200       AKINAGA, M.; ABUKAY, D.; RINDERER, L.
220       INST. OF EXP. PHYS., LAUSANNE UNIV., SWITZERLAND
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.317-20, REF.8
350       ISSN 0921-5093, CODEN MSAPE3
400       THE ELECTRICAL RESISTIVITY AND I-V CHARACTERISTICS OF HIGH-T/SUB C/
400       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / FILMS PREPARED BY R.F. MAGNETRON
400       SPUTTERING HAVE BEEN MEASURED IN DETAIL. THE SAMPLE DEPOSITED ONTO A
400       WATER-COOLED SUBSTRATE SHOWED PARTICULAR BEHAVIOUR AS FOLLOWS: (I)
400       THE RESISTANCE BEGAN TO DECREASE GRADUALLY FROM A VERY HIGH
400       TEMPERATURE T=155 K IN A DIFFERENT MANNER FROM THE METALLIC BEHAVIOUR
400       BEFORE THE CONVENTIONAL TRANSITION; (II) THE I-V CHARACTERISTICS DUE
400       TO A SUPERCONDUCTING WEAK LINK COULD BE CLEARLY OBSERVED AT LOW
400       TEMPERATURE. MOREOVER, ITS MODIFIED CHARACTERISTICS CONTINUED TO A
400       HIGHER TEMPERATURE THAN THE USUAL ON-SET TEMPERATURE T/SUB C-ON/;
400       (III) THE DIFFERENTIAL RESISTANCE DV/DI IN THE NORMAL STATE DERIVED
400       FROM THE I-V CURVES IN THE REGION OF I>>I/SUB C/ (CRITICAL CURRENT)
400       DID NOT DECREASE BEFORE THE CONVENTIONAL TRANSITION BUT INCREASED
400       GRADUALLY WITH DECREASING TEMPERATURE. IN CONSIDERATION OF THESE
400       EXPERIMENTAL RESULTS, THESE RESISTIVE PHENOMENA ABOVE T/SUB C-ON/ ARE
400       STRONGLY SUGGESTED TO BE DUE TO THE VERY LARGE SUPERCONDUCTING
400       FLUCTUATION EFFECT OR THE INFLUENCE OF SOME NEW EFFECT.
500       BARIUM COMPOUNDS; CERAMICS; FLUCTUATIONS IN SUPERCONDUCTORS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SPUTTERED COATINGS; SUPERCONDUCTING
500       THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; WEAK LINK; CERAMIC FILMS;
510       ELECTRICAL RESISTIVITY; MAGNETRON SPUTTERING; FLUCTUATION EFFECT;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1826
 AUTH     = MOROHASH
 DT       = 06
 KN       = B40891504074
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403658
002       B40891504074
010       CONFERENCE PAPER; EXPERIMENTAL.
100       YBA/SUB 2/CU/SUB 3/O/SUB X/ THIN FILMS COATED BY PLASMA
100       POLYMERIZATION.
200       MOROHASHI, S.; TAMURA, H.; YOSHIDA, A.; HASUO, S.
220       FUJITSU LABS. LTD., ATSUGI, JAPAN
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.321-3, REF.4
350       ISSN 0921-5093, CODEN MSAPE3
400       PLASMA POLYMERIZATION USING TRIFLUOROETHANE GAS WAS DEVELOPED FOR
400       PREVENTING THE DEGRADATION OF HIGH-T/SUB C/ OXIDE SUPERCONDUCTORS DUE
400       TO MOISTURE AND ANNEALING. THE RESISTIVE TRANSITIONS OF YBA/SUB
400       2/CU/SUB 3/O/SUB X/ FILMS COATED BY PLASMA POLYMERIZATION DID NOT
400       CHANGE BEFORE AND AFTER THE SAMPLES WERE SOAKED IN WATER AND ANNEALED
400       IN AIR. THE CHARACTERISTICS OF THE POLYMER COATED YBA/SUB 2/CU/SUB
400       3/O/SUB X/ FILM DID NOT CHANGE THOUGH THE UNCOATED FILM WAS DEGRADED
400       AFTER THREE MONTHS EXPOSURE TO THE ATMOSPHERE. THE AUTHORS CONFIRMED
400       THAT THE POLYMER FILM WAS DENSE AND HAD A COMPOSITION LIKE
400       TETRAFLUOROETHYLENE, AND THE YBA/SUB 2/CU/SUB 3/O/SUB X/ FILM REACTED
400       WITH FLUORINE AT THE INTERFACE BY X-RAY PHOTOELECTRON SPECTROSCOPY.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; POLYMERISATION;
500       SUPERCONDUCTING THIN FILMS; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       SURFACE TREATMENT; X-RAY PHOTOELECTRON SPECTRA; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; THIN FILMS; PLASMA POLYMERIZATION;
510       DEGRADATION; RESISTIVE TRANSITIONS; X-RAY PHOTOELECTRON SPECTROSCOPY;
510       YBA/SUB 2/CU/SUB 3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1827
 AUTH     = GREVE
 DT       = 06
 KN       = B40891504075
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403659
002       B40891504075
010       CONFERENCE PAPER; EXPERIMENTAL.
100       INFLUENCE OF Y/SUB 2/O/SUB 3/-ZRO/SUB 2/ BUFFER LAYERS ON SPUTTERED
100       FILMS OF YBA/SUB 2/CU/SUB 3/O/SUB 6+X/.
200       GREVE, D.W.; STAMPER, A.K.; SCHLESINGER, T.E.; MIGLIUOLO, M.
220       DEPT. OF ELECTR. ? COMPUT. ENG., CARNEGIE-MELLON UNIV., PITTSBURGH,
220       PA, USA
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.325-8, REF.14
350       ISSN 0921-5093, CODEN MSAPE3
400       SUPERCONDUCTING THIN FILMS OF YBA/SUB 2/CU/SUB 3/O/SUB 6+X/ HAVE BEEN
400       SPUTTER DEPOSITED ON ALUMINA AND SILICON SUBSTRATES BY USING A Y/SUB
400       2/O/SUB 3/-ZRO/SUB 2/ BUFFER LAYER. THE FILMS EXHIBIT ZERO
400       RESISTIVITY ( RHO <10/SUP -7/ OMEGA CM) AT 28 K AND 27 K
400       RESPECTIVELY. THE RESULTS DEPEND STRONGLY ON THE DEPOSITION
400       CONDITIONS AND ALSO ON THE TEMPERATURE OF THE OXYGEN POST-ANNEAL.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SPUTTER
500       DEPOSITION; SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; BUFFER LAYERS; SPUTTERED FILMS;
510       ZERO RESISTIVITY; DEPOSITION; POST-ANNEAL; YBA/SUB 2/CU/SUB 3/O/SUB
510       6+X/; Y/SUB 2/O/SUB 3/-ZRO/SUB 2/-YBA/SUB 2/CU/SUB 3/O/SUB 6+X/.
550       Y2O3-ZRO2-YBA2CU3O/INT YBA2CU3O/INT Y2O3/INT ZRO2/INT BA2/INT CU3/INT
550       BA/INT CU/INT O2/INT O3/INT Y2/INT ZR/INT O/INT Y/INT YBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS Y2O3/BIN ZRO2/BIN O2/BIN O3/BIN
550       Y2/BIN ZR/BIN O/BIN Y/BIN; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS
550       Y/SS.

DOCUMENT=            1828
 AUTH     = SAIZ
 DT       = 06
 KN       = B40891504076
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403660
002       B40891504076
010       CONFERENCE PAPER; EXPERIMENTAL.
100       THE RATE OF OXYGEN GAIN IN YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ EXPOSED TO
100       AIR.
200       SAIZ, E.; MOYA, J.S.
220       INST. DE CERAMICA Y VIDRIO, CSIC, MADRID, SPAIN
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.329-33, REF.10
350       ISSN 0921-5093, CODEN MSAPE3
400       THE DEPENDENCE OF THE RATE OF OXYGEN GAIN OF YBA/SUB 2/CU/SUB 3/O/SUB
400       7-X/ EXPOSED TO AIR ON DENSITY, CRYSTALLINE STRUCTURE AND TEMPERATURE
400       WAS MEASURED BY ISOTHERMAL THERMOGRAVIMETRIC ANALYSIS. THE MASS GAIN
400       WAS FOUND TO BE LINEAR WITH TIME AND ABOUT 50 TIMES FASTER FOR
400       TETRAGONAL THAN FOR ORTHORHOMBIC SYMMETRY.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SORPTION; STOICHIOMETRY; THERMAL
500       ANALYSIS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; DENSITY; CRYSTALLINE STRUCTURE;
510       ISOTHERMAL THERMOGRAVIMETRIC ANALYSIS; MASS GAIN; YBA/SUB 2/CU/SUB
510       3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1829
 AUTH     = HUONG
 DT       = 06
 KN       = B40891504077
 LG       = ENGL
 SN       = ISSN 0921-5093
 YR       = 89
000       3403661
002       B40891504077
010       CONFERENCE PAPER; EXPERIMENTAL.
100       CHARACTERIZATION OF BI-SR-CA-CU-O SUPERCONDUCTING MATERIALS BY RAMAN
100       SPECTROSCOPY.
200       HUONG, P.V.; OH-KIM, E. / KEU HONG KIM; DON KIM; JAE SHI CHOI
220       CNRS, BORDEAUX I UNIV., TALENCE, FRANCE
300       SYMPOSIUM ON CERAMIC MATERIALS RESEARCH AT THE E-MRS SPRING MEETING.
305       STRASBOURG, FRANCE.  31 MAY-2 JUNE 1988.
310       MATER. SCI. ENG. A, STRUCT. MATER., PROP. MICROSTRUCT. PROCESS.
310       (SWITZERLAND)
330       MARCH 1989. VOL.A109, P.337-40, REF.12
350       ISSN 0921-5093, CODEN MSAPE3
400       A SERIES OF HIGH T/SUB C/ SUPERCONDUCTING MATERIALS, BISRCACU/SUB
400       X/O/SUB Y/, X=1, 2 AND 3, WITH A VARIABLE AMOUNT OF COPPER WERE
400       PREPARED AND THEIR RAMAN SPECTRA RECORDED AND ANALYSED.
400       CHARACTERISTIC RAMAN FREQUENCIES WERE OBTAINED USING A RAMAN
400       MICROPROBE. WITH SINGLE MICROCRYSTALS, SELECTIVE EXTINCTION OF THE
400       RAMAN BANDS WAS RECORDED. FOUR DISTINCT SPECTRA WERE OBTAINED WHICH
400       CORRESPOND TO FOUR SCATTERING CONFIGURATIONS OF THE CRYSTALS. THESE
400       RESULTS INDICATE SOME DEVIATION FROM A TETRAGONAL STRUCTURE.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; RAMAN SPECTRA
500       OF INORGANIC SOLIDS; STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; RAMAN SPECTROSCOPY; MICROPROBE;
510       TETRAGONAL STRUCTURE; BISRCACU/SUB X/O/SUB Y/.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1830
 AUTH     = ZHAO
 DT       = 02
 KN       = B40891504225
 LG       = ENGL
 SN       = ISSN 0250-7862
 YR       = 89
000       3403809
002       B40891504225
010       JOURNAL PAPER; EXPERIMENTAL.
100       HIGH T/SUB C/ SUPERCONDUCTOR WITHOUT RARE-EARTH ELEMENT BI-SR-CA-CU-O
100       SYSTEM.
200       ZHAO ZHONG-XIAN; CHEN LI-QUAN; HUANG YU-ZHEN; XIAO ZHI-LI; NI
200       YONG-MING; ZHENG DONG-NING; LI JIAN-QI; JIA SHUN-LIAN; WANG
200       LIAN-ZHONG; WANG JI-HONG; RAN ZHONG-YUAN; SHEN DIAN-HONG; XUE
200       RONG-JIAN; CHEN JING-RAN; CHEN GENG-HUA
220       INST. OF PHYS., ACAD. SINICA, BEIJING, CHINA
310       CHIN. SCI. BULL. (CHINA)
330       MARCH 1989. VOL.34, NO.5, P.375-83, REF.7
350       ISSN 0250-7862
400       THE AUTHORS REPORT SOME OF THE PRELIMINARY RESULTS ON THE SYSTEM. THE
400       SUPERCONDUCTOR WITHOUT RARE-EARTH ELEMENTS WITH ZERO-RESISTANCE
400       TEMPERATURE ABOVE LN/SUB 2/ WAS SYNTHESIZED SUCCESSFULLY FOR THE
400       FIRST TIME IN THE WORLD.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; STRONTIUM COMPOUNDS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; ZERO-RESISTANCE TEMPERATURE; 77
510       K; BI-SR-CA-CU-O.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS.
560       TEMPERATURE 7.7 E+01 K.

DOCUMENT=            1831
 AUTH     = LIU
 DT       = 02
 KN       = B40891504226
 LG       = ENGL
 SN       = ISSN 0250-7862
 YR       = 89
000       3403810
002       B40891504226
010       JOURNAL PAPER; EXPERIMENTAL.
100       FAR IR SPECTRA OF Y-BA-CU-O SUPERCONDUCTOR SYSTEM.
200       LIU HUI-ZHOU; XU ZHEN-HUA; WENG SHI-FU; ZHOU WEI-JIN; GUO HAI; LIN
200       YING-ZHANG; WANG JIA-FU; LIU FU-AN; XU DUAN-FU; WU JIN-GUANG; XU
200       GUANG-XIAN
220       DEPT. OF CHEM., PEKING UNIV., CHINA
310       CHIN. SCI. BULL. (CHINA)
330       MARCH 1989. VOL.34, NO.5, P.407-13, REF.10
350       ISSN 0250-7862
400       THE RESULTS REPORTED HERE CONFIRM HIGH-TEMPERATURE SUPERCONDUCTIVITY
400       IN THE Y-BA-CU-O SYSTEM AND FURTHER PRESENT SOME PRELIMINARY RESULTS
400       OF FAR INFRARED ABSORPTION SPECTRA OF YBA/SUB 2/CU/SUB 3/O/SUB X/ AND
400       YBACU/SUB 2/O/SUB X/ AT ROOM TEMPERATURE AND LIQUID NITROGEN
400       TEMPERATURE RESPECTIVELY. THE STUDY OF INFRARED SPECTRA MAY PROVIDE
400       SOME INFORMATION FOR UNDERSTANDING OF THE MECHANISM OF
400       SUPERCONDUCTIVITY.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; INFRARED SPECTRA
500       OF INORGANIC SOLIDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; FAR INFRARED ABSORPTION SPECTRA;
510       ROOM TEMPERATURE; 300 K; 77 K; YBA/SUB 2/CU/SUB 3/O/SUB X/; YBACU/SUB
510       2/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; YBACU2O/SS CU2/SS
550       BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 3.0 E+02 K; TEMPERATURE 7.7 E+01 K.

DOCUMENT=            1832
 AUTH     = HERTLEIN
 DT       = 02
 KN       = B40891504232
 LG       = ENGL
 SN       = ISSN 0028-1042
 YR       = 89
000       3403816
002       B40891504232
010       JOURNAL PAPER; EXPERIMENTAL.
100       STRUCTURAL REFINEMENT OF THE HIGH-T/SUB C/ SUPERCONDUCTOR TLBA/SUB
100       2/CA/SUB 2/CU/SUB 3/O/SUB 9/.
200       HERTLEIN, T.; BURZLAFF, H. / OTTO, H.H.; ZETTERER, T.; RENK, K.F.
220       INST. FUR ANGEWANDTE PHYS., ERLANGEN UNIV., NURNBERG, WEST GERMANY
310       NATURWISSENSCHAFTEN (WEST GERMANY)
330       APRIL 1989. VOL.76, NO.4, P.170-2, REF.6
350       ISSN 0028-1042, CODEN NATWAY
400       THE TITLE COMPOUND IS A MEMBER (N=2) OF THE HOMOLOGOUS SERIES
400       TLBA/SUB 2/CA/SUB N/-CU/SUB N+1/O/SUB 2N+5/ WITH TLO MONOLAYERS IN
400       THE CRYSTAL STRUCTURE AND SHOWS HIGH-T/SUB C/ VOLUME
400       SUPERCONDUCTIVITY WITH ZERO RESISTIVITY AT 116 K AND AN ONSET
400       TEMPERATURE OF 128 K. STRUCTURAL PARAMETERS WERE PREVIOUSLY DERIVED
400       FROM ELECTRON DIFFRACTION STUDIES AND X-RAY POWDER DATA. THE RESULTS
400       OF THESE STUDIES COINCIDE WITH RESPECT TO THE HEAVY-ATOM POSITIONS
400       (THERE IS ONLY A SHIFT OF 0.5 IN THE Z-COORDINATES), THEY DIFFER,
400       HOWEVER, WITH RESPECT TO THE OXYGEN POSITIONS. SINCE SUFFICIENTLY
400       LARGE SINGLE-CRYSTAL SPECIMENS COULD BE PREPARED, THE AUTHORS
400       COMPLETE THE INFORMATION BY SINGLE-CRYSTAL INVESTIGATIONS.
500       BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; THALLIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CRYSTAL STRUCTURE REFINEMENT;
510       HIGH-T/SUB C/ SUPERCONDUCTOR; HEAVY-ATOM POSITIONS; TLBA/SUB 2/CA/SUB
510       2/CU/SUB 3/O/SUB 9/.
550       TLBA2CA2CU3O9/SS BA2/SS CA2/SS CU3/SS BA/SS CA/SS CU/SS O9/SS TL/SS
550       O/SS.

DOCUMENT=            1833
 AUTH     = LYUBUTIN
 DT       = 02
 KN       = B40891504461
 LG       = ENGL
 SN       = ISSN 0375-9601
 YR       = 89
000       3404045
002       B40891504461
010       JOURNAL PAPER; THEORETICAL.
100       LATTICE SUM CALCULATIONS AND ELECTRIC FIELD GRADIENTS FOR
100       ORTHORHOMBIC AND TETRAGONAL PHASES OF YBA/SUB 2/CU/SUB 3/O/SUB X/.
200       LYUBUTIN, I.S.; TERZIEV, V.G.; DMITRIEVA, T.V. / GOR'KOV, V.P.
220       INST. OF CRYSTALLOGRAPHY, ACAD. OF SCI., MOSCOW, USSR
310       PHYS. LETT. A (NETHERLANDS)
330       8 MAY 1989. VOL.137, NO.3, P.144-8, REF.26
350       ISSN 0375-9601, CODEN PYLAAG
400       ELECTRIC FIELD GRADIENT (EFG) AND ASYMMETRY PARAMETER ( ETA ) VALUES
400       HAVE BEEN CALCULATED FOR ALL THE CATIONIC SITES OF ORTHORHOMBIC AND
400       TETRAGONAL YBA/SUB 2/CU/SUB 3/O/SUB X/. DIFFERENT TYPES OF ORDERING
400       OF THE OXYGEN VACANCIES AROUND THE CU1 SITE AND DIFFERENT COPPER
400       CHARGES IN THIS SITE WERE CONSIDERED, AS WELL AS THE EFFECT OF AN
400       ELECTRON HOLE. A COMPARISON OF EXPERIMENTAL AND CALCULATED EFG VALUES
400       IS PROPOSED.
500       BARIUM COMPOUNDS; CRYSTAL HYPERFINE FIELD INTERACTIONS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; VACANCIES (CRYSTAL); YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; LATTICE SUM CALCULATIONS; ELECTRIC
510       FIELD GRADIENTS; ORTHORHOMBIC; TETRAGONAL; ASYMMETRY PARAMETER;
510       CATIONIC SITES; ORDERING; VACANCIES; ELECTRON HOLE; YBA/SUB 2/CU/SUB
510       3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1834
 AUTH     = WEBB
 DT       = 02
 KN       = B40891504462
 LG       = ENGL
 SN       = ISSN 0375-9601
 YR       = 89
000       3404046
002       B40891504462
010       JOURNAL PAPER; EXPERIMENTAL.
100       HIGH TEMPERATURE-HIGH PRESSURE SYNTHESIS OF A NEW PHASE OF LACUO/SUB
100       3/.
200       WEBB, A.W.; SKELTON, E.F.; QADRI, S.B.; CARPENTER, E.R. JR.; OSOFSKY,
200       M.S.; SOULEN, R.J.; LETOURNEAU, V.
220       NAVAL RES. LAB., WASHINGTON, DC, USA
310       PHYS. LETT. A (NETHERLANDS)
330       15 MAY 1989. VOL.137, NO.4-5, P.205-6, REF.3
350       ISSN 0375-9601, CODEN PYLAAG
400       THE AUTHORS REPORT EVIDENCE OF A MODIFIED PROCEDURE FOR THE SYNTHESIS
400       OF LACUO/SUB 3/ AT ELEVATED PRESSURES AND TEMPERATURES. LACUO/SUB 3/
400       CRYSTALLIZES IN A RHOMBOHEDRAL LATTICE WHICH REPRESENTS A SMALL
400       DISTORTION OF THE PEROVSKITE CUBIC CELL; THE RHOMBOHEDRAL LATTICE
400       PARAMETERS ARE: A=5.426 AA AND ALPHA =60.89 DEGREES . THEY FIND THAT
400       UPON HEATING THE MATERIAL TO TEMPERATURES ABOVE 408 DEGREES C, IT
400       UNDERGOES AN IRREVERSIBLE PHASE TRANSITION TO A NEW CRYSTAL
400       STRUCTURE. X-RAY DATA FROM THE NEW POLYMORPH CAN BE INDEXED TO A
400       TETRAGONAL UNIT CELL HAVING LATTICE PARAMETERS OF A=5.431+OR-0.007 AA
400       AND C=7.836+OR-0.013 AA. THIS NEW CELL CAN ALSO BE VIEWED AS A
400       DISTORTED PEROVSKITE AND, ASSUMING 4 FORMULA UNITS IN THE CELL, THERE
400       IS A FRACTIONAL DENSITY DECREASE OF 0.3% IN TRANSFORMING FROM THE
400       RHOMBOHEDRAL TO THE TETRAGONAL CELL. BASED ON THE SIMILARLY BETWEEN
400       THESE STRUCTURES AND THE RECENTLY DISCOVERED HIGH T/SUB C/ CU-OXIDES,
400       TESTS HAVE BEEN RUN FOR EVIDENCE OF SUPERCONDUCTIVITY. SO FAR THE
400       RESULTS HAVE BEEN NEGATIVE.
500       CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS; DENSITY OF SOLIDS;
500       HIGH-PRESSURE EFFECTS IN SOLIDS; HIGH-TEMPERATURE PHENOMENA AND
500       EFFECTS; LANTHANUM COMPOUNDS; POLYMORPHIC TRANSFORMATIONS.
510       X-RAY DIFFRACTION; HIGH TEMPERATURE; HIGH PRESSURE; SYNTHESIS;
510       RHOMBOHEDRAL; LATTICE PARAMETERS; IRREVERSIBLE PHASE TRANSITION;
510       CRYSTAL STRUCTURE; POLYMORPH; TETRAGONAL; PEROVSKITE; DENSITY;
510       LACUO/SUB 3/.
550       LACUO3/SS CU/SS LA/SS O3/SS O/SS.

DOCUMENT=            1835
 AUTH     = NISHI
 DT       = 02
 KN       = B40891504463
 LG       = ENGL
 SN       = ISSN 0375-9601
 YR       = 89
000       3404047
002       B40891504463
010       JOURNAL PAPER; EXPERIMENTAL.
100       COOLING RATE DEPENDENCE OF ABNORMAL J/SUB C/ NEAR THE BOILING POINT
100       OF NITROGEN FOR YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/.
200       NISHI, Y.; KITA, Y.; IGARASHI, A.; TOKUNAGA, S.
220       DEPT. OF MATER. SCI., TOKAI UNIV., KANAGAWA, JAPAN
310       PHYS. LETT. A (NETHERLANDS)
330       15 MAY 1989. VOL.137, NO.4-5, P.207-9, REF.13
350       ISSN 0375-9601, CODEN PYLAAG
400       THE COOLING RATE (R) DEPENDENCE OF J/SUB C/ IS INVESTIGATED FOR HIGH
400       T/SUB C/YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/. J/SUB C/ (J/SUB C//SUP 60K/,
400       J/SUB C//SUP 70K/ AND J/SUB C//SUP 80K/) AT DIFFERENT TEMPERATURES
400       DEPENDS ON R. THE AUTHORS SHOW THE EXISTENCE OF AN APPROXIMATELY
400       LINEAR RELATIONSHIP BETWEEN SUPERCONDUCTIVE VALUES (J/SUB C//SUP
400       60K/, J/SUB C//SUP 70K/ AND J/SUB C//SUP 80K/) AND R.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY);
500       HIGH-TEMPERATURE SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       CRITICAL CURRENT DENSITY; HIGH TEMPERATURE SUPERCONDUCTOR; COOLING
510       RATE; 60 TO 80 K; YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/; N/SUB 2/ BOILING
510       POINT.
550       N2/EL N/EL; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 6.0 E+01 TO 8.0 E+01 K.

DOCUMENT=            1836
 AUTH     = UEMURA
 DT       = 02
 KN       = B40891504581
 LG       = ENGL
 SN       = ISSN 0031-9007
 YR       = 89
000       3404165
002       B40891504581
010       JOURNAL PAPER; EXPERIMENTAL.
100       UNIVERSAL CORRELATIONS BETWEEN T/SUB C/ AND N/SUB S//M* (CARRIER
100       DENSITY OVER EFFECTIVE MASS) IN HIGH-T/SUB C/ CUPRATE
100       SUPERCONDUCTORS.
200       UEMURA, Y.J.; LUKE, G.M.; STERNLIEB, B.J.; BREWER, J.H.; CAROLAN,
200       J.F.; HARDY, W.N.; KADONO, R.; KEMPTON, J.R.; KIEFL, R.F.; KREITZMAN,
200       S.R.; MULHERN, P.; RISEMAN, T.M.; WILLIAMS, D.L.; YANG, B.X.; UCHIDA,
200       S.; TAKAGI, H.; GOPALAKRISHNAN, J.; SLEIGHT, A.W.; SUBRAMANIAN, M.A.;
200       CHIEN, C.L.; CIEPLAK, M.Z.; GANG XIAO; LEE, V.Y.; STATT, B.W.;
200       STRONACH, C.E.; KOSSLER, W.J.; YU, X.H.
220       DEPT. OF PHYS., COLUMBIA UNIV., NEW YORK, NY, USA
310       PHYS. REV. LETT. (USA)
330       8 MAY 1989. VOL.62, NO.19, P.2317-20, REF.24
350       ISSN 0031-9007, CODEN PRLTAO
400       THE MUON-SPIN-RELAXATION RATE SIGMA HAS BEEN MEASURED IN SIXTEEN
400       SPECIMENS OF HIGH-T/SUB C/ CUPRATE SUPERCONDUCTORS (THE 2:1:4, 1:2:3,
400       2:2:1:2, AND 2:2:2:3 SERIES). THIS HAS ALLOWED THE AUTHORS TO STUDY
400       THE MAGNETIC FIELD PENETRATION DEPTH LAMBDA AND THUS THE
400       SUPERCONDUCTING CARRIER DENSITY N/SUB S/ DIVIDED BY THE EFFECTIVE
400       MASS M* ( SIGMA VARIES AS 1/ LAMBDA /SUP 2/ VARIES AS N/SUB S//M*). A
400       UNIVERSAL LINEAR RELATION BETWEEN T/SUB C/ AND SIGMA (T TO 0) VARIES
400       AS N/SUB S//M* HAS BEEN FOUND WITH INCREASING CARRIER DOPING. IN
400       HEAVILY DOPED SAMPLES, HOWEVER, T/SUB C/ SHOWS SATURATION AND
400       SUPPRESSION WITH INCREASING N/SUB S//M*. THIS SATURATION STARTS AT
400       DIFFERENT VALUES OF N/SUB S//M* FOR MATERIALS WITH DIFFERENT
400       MULTIPLICITIES OF CUO PLANES.
500       CARRIER DENSITY; EFFECTIVE MASS (BAND STRUCTURE); HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MUON PROBES; PENETRATION DEPTH (SUPERCONDUCTIVITY);
500       SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; UNIVERSAL CORRELATIONS; CERAMICS;
510       CARRIER DENSITY; EFFECTIVE MASS; HIGH-T/SUB C/ CUPRATE
510       SUPERCONDUCTORS; MUON-SPIN-RELAXATION RATE; MAGNETIC FIELD
510       PENETRATION DEPTH; CARRIER DOPING; HEAVILY DOPED SAMPLES; SATURATION;
510       CUO PLANES; TL-PB-SR-CA-CU-O; LA-SR-CU-O; YBA/SUB 2/CU/SUB 3/O/SUB
510       Y/; BI-PB-SR-CA-CU-O.
550       TLPBSRCACUO/SS CA/SS CU/SS PB/SS SR/SS TL/SS O/SS; LASRCUO/SS CU/SS
550       LA/SS SR/SS O/SS; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS;
550       BIPBSRCACUO/SS BI/SS CA/SS CU/SS PB/SS SR/SS O/SS.

DOCUMENT=            1837
 AUTH     = BRANDT
 DT       = 02
 KN       = B40891504582
 LG       = ENGL
 SN       = ISSN 0031-9007
 YR       = 89
000       3404166
002       B40891504582
010       JOURNAL PAPER.
100       COMMENT ON 'EVIDENCE FROM MECHANICAL MEASUREMENTS FOR FLUX-LATTICE
100       MELTING IN SINGLE-CRYSTAL YBA/SUB 2/CU/SUB 3/O/SUB 7/ AND BI/SUB
100       2.2/SR/SUB 2/CA/SUB 0.8/CU/SUB 2/O/SUB 8/' (AND REPLY).
200       BRANDT, E.H. / ESQUINAZI, P.; WEISS, G.; KLEIMAN, R.N.; GAMMEL, P.L.;
200       SCHNEEMEYER, L.F.; WASZCZAK, J.V.; BISHOP, D.J.
220       MAX-PLANCK INST. FUR METALLFORSCHUNG, STUTTGART, WEST GERMANY
310       PHYS. REV. LETT. (USA)
330       8 MAY 1989. VOL.62, NO.19, P.2330-1, REF.11
350       ISSN 0031-9007, CODEN PRLTAO
400       IN A RECENT LETTER GAMMEL ET AL. (SEE IBID., VOL.61, P.1666, 1988)
400       REPORTED ON MEASUREMENTS OF FREQUENCY AND DISSIPATION OF OSCILLATING
400       SUPERCONDUCTORS AND CONCLUDED FROM THESE DATA THE MELTING OF THE
400       FLUX-LINE LATTICE (FLL) AT A CERTAIN TEMPERATURE. BRANDT, ESQUINAZI
400       AND WEISS ARGUE ABOUT THIS CONCLUSION. KLEIMAN ET AL. REPLY TO THE
400       COMMENT.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; FLUX-LINE
500       LATTICE; HIGH-TEMPERATURE SUPERCONDUCTORS; STRONTIUM COMPOUNDS;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MECHANICAL MEASUREMENTS FOR
510       FLUX-LATTICE MELTING; SINGLE-CRYSTAL; FREQUENCY; DISSIPATION;
510       OSCILLATING SUPERCONDUCTORS; YBA/SUB 2/CU/SUB 3/O/SUB 7/; BI/SUB
510       2.2/SR/SUB 2/CA/SUB 0.8/CU/SUB 2/O/SUB 8/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS;
550       BI2.2SR2CA0.8CU2O8/SS BI2.2/SS CA0.8/SS CU2/SS SR2/SS BI/SS CA/SS
550       CU/SS O8/SS SR/SS O/SS.

DOCUMENT=            1838
 AUTH     = KRISHNAM
 DT       = 02
 KN       = B40891504904
 LG       = ENGL
 SN       = ISSN 0304-4289
 YR       = 89
000       3404488
002       B40891504904
010       JOURNAL PAPER; EXPERIMENTAL.
100       COMPARATIVE EVALUATION OF METHODS FOR PRECISE DETERMINATION OF OXYGEN
100       STOICHIOMETRY IN HIGH T/SUB C/ OXIDES.
200       KRISHNAMOORTHY, T.S.; MAHADEVAN, N.; DESAI, S.S.; DIAS, C.C.
220       DIV. OF ANALYTICAL CHEM., BHABHA ATOMIC RES. CENTRE, BOMBAY, INDIA
310       PRAMANA (INDIA)
330       FEB. 1989. VOL.32, NO.2, P.143-8, REF.10
350       ISSN 0304-4289, CODEN PRAMCI
400       A COMPARATIVE STUDY OF THE METHODS FOR OXYGEN STOICHIOMETRY-DIRECT
400       INERT GAS FUSION METHOD AND TWO INDIRECT IODOMETRIC METHODS-HAS BEEN
400       CARRIED OUT. THE INDIRECT IODOMETRIC METHOD IN WHICH CU(III) IS
400       DIRECTLY ESTIMATED, HAS BEEN FOUND TO BE MORE PRECISE. SEVERAL
400       SAMPLES OF YBA/SUB 2/CU/SUB 3/O/SUB X/ OF VARYING X, THEIR
400       FLUORINE-SUBSTITUTED COUNTERPARTS AND ALSO BI/SUB 2/SR/SUB 2/CA/SUB
400       1/CU/SUB 2/O/SUB X/ AND TL/SUB 2/BA/SUB 2/CA/SUB 1/CU/SUB 2/O/SUB X/
400       HAVE BEEN ANALYSED.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; STOICHIOMETRY; STRONTIUM COMPOUNDS;
500       THALLIUM COMPOUNDS; THERMAL ANALYSIS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O STOICHIOMETRY DETERMINATION;
510       HIGH T/SUB C/ OXIDES; COMPARATIVE STUDY; DIRECT INERT GAS FUSION
510       METHOD; INDIRECT IODOMETRIC METHODS; CU(III); YBA/SUB 2/CU/SUB
510       3/O/SUB X/; BI/SUB 2/SR/SUB 2/CA/SUB 1/CU/SUB 2/O/SUB X/; TL/SUB
510       2/BA/SUB 2/CA/SUB 1/CU/SUB 2/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; BI2SR2CA1CU2O/SS
550       BI2/SS CA1/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS SR/SS O/SS;
550       TL2BA2CA1CU2O/SS BA2/SS CA1/SS CU2/SS TL2/SS BA/SS CA/SS CU/SS TL/SS
550       O/SS.

DOCUMENT=            1839
 AUTH     = ISAAC
 DT       = 02
 KN       = B40891504905
 LG       = ENGL
 SN       = ISSN 0304-4289
 YR       = 89
000       3404489
002       B40891504905
010       JOURNAL PAPER; EXPERIMENTAL.
100       ABRUPT INCREASE IN THERMAL DIFFUSION BELOW T/SUB C/ IN YBA/SUB
100       2/CU/SUB 3/O/SUB 7- DELTA /.
200       ISAAC, J.; PHILIP, J.; CHAUDHURI, B.K.
220       DEPT. OF PHYS., COCHIN UNIV. OF SCI. ? TECHNOL., INDIA
310       PRAMANA (INDIA)
330       FEB. 1989. VOL.32, NO.2, P.L167-9, REF.8
350       ISSN 0304-4289, CODEN PRAMCI
400       THE AUTHORS REPORT THE VARIATION OF THE THERMAL DIFFUSIVITY IN THE
400       HIGH TEMPERATURE SUPERCONDUCTOR YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
400       BELOW THE TRANSITION TEMPERATURE MEASURED USING A PHOTO-ACOUSTIC
400       TECHNIQUE. ALPHA IS FOUND TO INCREASE SHARPLY BELOW T/SUB C/.
400       QUALITATIVE EXPLANATIONS ARE GIVEN.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING
500       TRANSITION TEMPERATURE; THERMAL DIFFUSION; THERMAL DIFFUSIVITY;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; THERMAL DIFFUSION; THERMAL
510       DIFFUSIVITY; TRANSITION TEMPERATURE; PHOTO-ACOUSTIC TECHNIQUE;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1840
 AUTH     = SARKER
 DT       = 02
 KN       = B40891504956
 LG       = ENGL
 SN       = ISSN 0163-1829
 YR       = 89
000       3404540
002       B40891504956
010       JOURNAL PAPER; THEORETICAL.
100       GUTZWILLER APPROXIMATION FOR THE EMERY MODEL.
200       SARKER, S.K.
220       DEPT. OF PHYS. ? ASTRON., ALABAMA UNIV., TUSCALOOSA, AL, USA
310       PHYS. REV. B, CONDENS. MATTER (USA)
330       1 FEB. 1989. VOL.39, NO.4, P.2155-8, REF.7
350       ISSN 0163-1829, CODEN PRBMDO
400       NORMAL-STATE PROPERTIES OF THE TWO-DIMENSIONAL MODEL PROPOSED BY
400       EMERY FOR COPPER-OXIDE SUPERCONDUCTORS ARE STUDIED WITHIN THE
400       GUTZWILLER APPROXIMATION. FOR LARGER INTRASITE REPULSION IT IS FOUND
400       THAT HYBRIDIZATION PRODUCES QUASIHOLE BANDS WITH A REDUCED KINETIC
400       ENERGY. FOR HOLE DENSITIES BETWEEN 1 AND 2, THE REDUCTION FACTOR Q IS
400       PROPORTIONAL TO ( EPSILON /SUB 0//SUP -1/+(U- EPSILON /SUB 0/)/SUP
400       -1/)/SUP 2/ WHERE EPSILON /SUB 0/= DELTA EPSILON /T, U=U/T, DELTA
400       EPSILON IS THE DIFFERENCE IN ENERGY BETWEEN THE COPPER AND THE OXYGEN
400       LEVELS, AND T IS THE HYBRIDIZATION ENERGY. THESE RESULTS DIFFER
400       QUALITATIVELY FROM THOSE FOR THE HEAVY-FERMION CASE WHERE Q IS
400       EXPONENTIALLY SMALL, RESULTING IN SMALL FERMI ENERGY (LARGE EFFECTIVE
400       MASS). IN THE PRESENT CASE HOLES ARE ONLY MODERATELY HEAVY SO THAT
400       THE FERMI ENERGY IS LARGE.
500       FERMI LEVEL; HIGH-TEMPERATURE SUPERCONDUCTORS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; NORMAL STATE; GUTZWILLER
510       APPROXIMATION; EMERY MODEL; TWO-DIMENSIONAL MODEL; COPPER-OXIDE
510       SUPERCONDUCTORS; HYBRIDIZATION; QUASIHOLE BANDS; FERMI ENERGY.
550       CU/SS O/SS.

DOCUMENT=            1841
 AUTH     = GOMEZ
 DT       = 02
 KN       = B40891505121
 LG       = ENGL
 SN       = ISSN 0035-001X
 YR       = 88
000       3404705
002       B40891505121
010       JOURNAL PAPER; REVIEW, PRACTICAL.
100       SOME APPLICATIONS OF MOSSBAUER SPECTROSCOPY.
200       GOMEZ GONZALEZ, R.W.
220       FAC. DE CIENCIAS, UNIV. NACIONAL AUTONOMA DE MEXICO, MEXICO CITY,
220       MEXICO
310       REV. MEX. FIS. (MEXICO)
330       JULY-SEPT. 1988. VOL.34, NO.3, P.442-51, REF.13
350       ISSN 0035-001X, CODEN RMXFAT
400       THE APPLICATIONS AND PERFORMANCE LIMITS OF MOSSBAUER SPECTROSCOPY ARE
400       BRIEFLY OUTLINED. THE AUTHOR DESCRIBES SOME APPLICATIONS TO
400       ARCHAEOLOGICAL MATERIALS, FERRITES AND HIGH-T/SUB C/ SUPERCONDUCTORS,
400       AS CARRIED OUT AT THE ATOMIC AND MOLECULAR PHYSICS LABORATORY OF THE
400       FACULTY OF SCIENCES AT UNAM.
500       ARCHAEOLOGY; FERRITES; HIGH-TEMPERATURE SUPERCONDUCTORS; MOSSBAUER
500       EFFECT.
510       MOSSBAUER SPECTROSCOPY; ARCHAEOLOGICAL MATERIALS; FERRITES;
510       HIGH-T/SUB C/ SUPERCONDUCTORS.

DOCUMENT=            1842
 AUTH     = RAVEAU
 DT       = 02
 KN       = B40891505157
 LG       = FREN
 SN       = ISSN 0035-3434
 YR       = 89
000       3404741
002       B40891505157
010       JOURNAL PAPER; EXPERIMENTAL.
100       MIXED VALENCE COPPER OXIDES: STOICHIOMETRY-SUPERCONDUCTIVITY
100       RELATIONSHIPS.
200       RAVEAU, B.; MICHEL, C.
220       LAB. DE CRISTALLOGR. ET SCI. DES MATER., ISMRA, CAEN, FRANCE
310       REV. INT. HAUTES TEMP. REFRACT. (FRANCE)
330       1989. VOL.25, NO.1, P.19-28, REF.30. (IN FRENCH)
350       ISSN 0035-3434, CODEN RIHTAV
400       AMONG THE MIXED-VALENCE COPPER OXIDES WHOSE STRUCTURE IS RELATED TO
400       THE PEROVSKITE CELL; ONLY THOSE WITH A BIDIMENSIONAL STRUCTURE ARE
400       SUPERCONDUCTORS. RELATIONS BETWEEN SUPERCONDUCTIVITY AND OXYGEN
400       STOICHIOMETRY ARE DESCRIBED AND STUDIED FOR LA/SUB 2/CUO/SUB 4/,
400       YBA/SUB 2/CU/SUB 3/O/SUB 6.9/ AND YBA/SUB 2/CU/SUB 3/O/SUB 6.25/
400       COMPOUNDS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM
500       COMPOUNDS; MIXED VALENCE COMPOUNDS; STOICHIOMETRY; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; MIXED-VALENCE COPPER OXIDES;
510       STRUCTURE; PEROVSKITE; SUPERCONDUCTIVITY; STOICHIOMETRY; LA/SUB
510       2/CUO/SUB 4/; YBA/SUB 2/CU/SUB 3/O/SUB 6.9/; YBA/SUB 2/CU/SUB 3/O/SUB
510       6.25/.
550       LA2CUO4/SS LA2/SS LA/SS O4/SS C/SS O/SS U/SS; YBA2CU3O6.9/SS O6.9/SS
550       BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; YBA2CU3O6.25/SS O6.25/SS BA2/SS
550       CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1843
 AUTH     = REMY
 DT       = 02
 KN       = B40891505158
 LG       = FREN
 SN       = ISSN 0035-3434
 YR       = 89
000       3404742
002       B40891505158
010       JOURNAL PAPER; EXPERIMENTAL.
100       INFLUENCE OF VARIOUS PARAMETERS ON THE SYNTHESIS OF SUPERCONDUCTING
100       OXIDES.
200       REMY, F.; MONNEREAU, O.; VACQUIER, G. / SORBIER, J.P.; FOURNEL, A.;
200       MOKRANI, R.
220       LAB DE CHIMIE DES MATER., PROVENCE UNIV., MARSEILLE, FRANCE
310       REV. INT. HAUTES TEMP. REFRACT. (FRANCE)
330       1989. VOL.25, NO.1, P.29-35, REF.14. (IN FRENCH)
350       ISSN 0035-3434, CODEN RIHTAV
400       SEVERAL OXIDES ABLE TO GIVE RISE TO A HIGH T/SUB C/ SUPERCONDUCTIVITY
400       HAVE BEEN STUDIED. SAMPLES WERE PREPARED IN BOTH SERIES: LA(BA/SUB
400       2-X/LA/SUB X/)CU/SUB 3/O/SUB 7+ DELTA / AND YBA/SUB 2/(CU/SUB
400       3-X/AG/SUB X/)O/SUB 7- DELTA /. THE EVOLUTION OF THE RESISTANCE
400       VERSUS THE COMPOSITION HAS BEEN STUDIED ON SINTERED SAMPLES. THE
400       RESULTS ASSESS THE IMPORTANCE OF THE EXPERIMENTAL CONDITIONS OF THE
400       SYNTHESIS. IN THE SYSTEM LA(BA/SUB 2-X/LA/SUB X/LA/SUB X/)CU/SUB
400       3/O/SUB 7+ DELTA /, THE AUTHORS' RESULTS COMPLETE THE WORK OF SEGRE
400       ET AL. (1987) AND THE PRECISE COMPOSITION AT WHICH THE
400       SUPERCONDUCTIVITY TRANSITION DISAPPEARS TO BE REPLACED BY
400       SEMICONDUCTIVE BEHAVIOUR IS DETERMINED. THE SAMPLES YBA/SUB 2/(CU/SUB
400       3-X/AG/SUB X/)O/SUB 7- DELTA / HAVE FOR X=0 ELECTRICAL PROPERTIES
400       VERY DEPENDENT ON THE THERMAL TREATMENT. SOME CHARACTERISTIC DATA ARE
400       SHOWN. THE PARTIAL SUBSTITUTION OF CU BY AG FOR X>OR=1 ENABLES ONE TO
400       RETAIN THE SUPERCONDUCTING BEHAVIOUR.
500       BARIUM COMPOUNDS; HEAT TREATMENT; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       LANTHANUM COMPOUNDS; SINTERING; SUPERCONDUCTING SEMICONDUCTORS;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SINTERING; OXIDES; RESISTANCE;
510       SYNTHESIS; SUPERCONDUCTIVITY TRANSITION; SEMICONDUCTIVE BEHAVIOUR;
510       THERMAL TREATMENT; SUBSTITUTION; LA(BA/SUB 2-X/LA/SUB X/)CU/SUB
510       3/O/SUB 7+ DELTA /; YBA/SUB 2/(CU/SUB 3-X/AG/SUB X/)O/SUB 7- DELTA /.
550       LABALACU3O/SS CU3/SS BA/SS CU/SS LA/SS O/SS; YBA2CUAGO/SS BA2/SS
550       AG/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1844
 AUTH     = GUPTA
 DT       = 02
 KN       = B40891505159
 LG       = FREN
 SN       = ISSN 0035-3434
 YR       = 89
000       3404743
002       B40891505159
010       JOURNAL PAPER; THEORETICAL.
100       WHY IS THE COMPOUND YBA/SUB 2/CU/SUB 3/O/SUB 6/ NOT A
100       SUPERCONDUCTOR?.
200       GUPTA, M. / GUPTA, R.P.
220       INST. DES SCI. DES MATER., UNIV. PARIS-SUD, ORSAY, FRANCE
310       REV. INT. HAUTES TEMP. REFRACT. (FRANCE)
330       1989. VOL.25, NO.1, P.37-44, REF.22. (IN FRENCH)
350       ISSN 0035-3434, CODEN RIHTAV
400       A COMPARATIVE STUDY OF THE ELECTRONIC STRUCTURE OF SUPERCONDUCTING
400       YBA/SUB 2/CU/SUB 3/O/SUB 7/ AND NON SUPERCONDUCTING YBA/SUB 2/CU/SUB
400       3/O/SUB 6/ IS PRESENTED. THE AUTHORS' CALCULATION SHOWS THAT THE
400       DENSITIES OF STATES IN THE CU SITES WITH PYRAMIDAL COORDINATION AND
400       AT ITS FOUR OXYGEN NEIGHBORING SITES IN THE HORIZONTAL PLANES ARE
400       VERY SIMILAR IN THE SUPERCONDUCTING AND NON-SUPERCONDUCTING PHASES.
400       THUS, THE BIDIMENSIONAL CHARACTER IS UNALTERED IN THE TWO COMPOUNDS.
400       HOWEVER, UNLIKE FOR YBA/SUB 2/CU/SUB 3/O/SUB 7/, THEY FIND THAT IN
400       YBA/SUB 2/CU/SUB 3/O/SUB 6/, THE CU ATOMS OF THE LINEAR CHAIN SITES
400       AND THE OXYGEN ATOMS WITH WHICH IT INTERACTS ALONG THE C AXIS ARE
400       RESPECTIVELY IN THE CHARGED STATE CU/SUP +/ AND O/SUP 2-/; THESE
400       SITES ARE INSULATING SINCE THE DENSITIES OF STATES AT THE FERMI
400       ENERGY IS ALMOST NIL. THESE RESULTS SUGGEST THE IMPORTANCE OF THE
400       LINEAR CU-O CHAINS IN THE SUPERCONDUCTING PROPERTIES.
500       BARIUM COMPOUNDS; ELECTRONIC DENSITY OF STATES; FERMI LEVEL;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       SUPERCONDUCTING; NONSUPERCONDUCTING; HIGH TEMPERATURE
510       SUPERCONDUCTIVITY; ELECTRONIC STRUCTURE; BIDIMENSIONAL; DENSITIES OF
510       STATES; FERMI ENERGY; YBA/SUB 2/CU/SUB 3/O/SUB 7/; YBA/SUB 2/CU/SUB
510       3/O/SUB 6/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS; YBA2CU3O6/SS
550       BA2/SS CU3/SS BA/SS CU/SS O6/SS O/SS Y/SS.

DOCUMENT=            1845
 AUTH     = BEN
 DT       = 02
 KN       = B40891505160
 LG       = ENGL
 SN       = ISSN 0035-3434
 YR       = 89
000       3404744
002       B40891505160
010       JOURNAL PAPER; EXPERIMENTAL.
100       INHOMOGENEITY, DEFECTS AND RADIATION DAMAGE IN YBA/SUB 2/CU/SUB
100       3/O/SUB 7-X/.
200       BEN SALEM, M.; BOULESTEIX, C.; MOKRANI, R. / MONNEREAU, O.; SORBIER,
200       J.P.; DUBOIS, B.; BASSAT, J.M.; ODIER, P.; MORIN, D.; NITSCHE, S.
220       LAB. DE MICROSCOPIE ELECTON. APPLIQUEE, FAC. DES SCI. DE
220       SAINT-JEROME, MARSEILLE, FRANCE
310       REV. INT. HAUTES TEMP. REFRACT. (FRANCE)
330       1989. VOL.25, NO.1, P.45-51, REF.6
350       ISSN 0035-3434, CODEN RIHTAV
400       A GREAT NUMBER OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ SAMPLES FROM
400       DIFFERENT ORIGINS (BUT WITH NORMAL T/SUB C/ AND DELTA T/SUB C/
400       VALUES) HAVE BEEN STUDIED BY ELECTRON MICROSCOPY, ELECTRON
400       DIFFRACTION AND MICROANALYSIS. SOME OF THESE SAMPLES WERE
400       NEVERTHELESS VERY INHOMOGENEOUS. THE TWIN CONTRAST TO THESE SAMPLES
400       HAS BEEN SEEN TO DISAPPEAR DURING OBSERVATION, BY IRRADIATION DAMAGE
400       TO WHICH THE SAMPLES ARE VERY SENSITIVE. HREM IMAGES HAVE BEEN
400       OBTAINED SHOWING STACKING FAULTS PARALLEL AND PERPENDICULAR TO THE C
400       AXIS.
500       BARIUM COMPOUNDS; ELECTRON DIFFRACTION EXAMINATION OF MATERIALS;
500       ELECTRON MICROSCOPE EXAMINATION OF MATERIALS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; RADIATION EFFECTS; STACKING FAULTS; TWINNING;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; INHOMOGENEITY; DEFECTS; RADIATION
510       DAMAGE; ELECTRON MICROSCOPY; ELECTRON DIFFRACTION; MICROANALYSIS;
510       TWIN; HREM IMAGES; STACKING FAULTS; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1846
 AUTH     = PINTSCHO
 DT       = 02
 KN       = B40891505161
 LG       = ENGL
 SN       = ISSN 0035-3434
 YR       = 89
000       3404745
002       B40891505161
010       JOURNAL PAPER; EXPERIMENTAL.
100       LATTICE DYNAMICS OF HIGH-T/SUB C/ SUPERCONDUCTORS.
200       PINTSCHOVIUS, L. / BASSAT, J.M.; ODIER, P.; GERVAIS, F.; HENNION, B.;
200       REICHARDT, W.
220       INST. FUR NUKLEARE FESTKORPERPHYS., KERNFORSCHUNGSZENTRUM KARLSRUHE,
220       WEST GERMANY
310       REV. INT. HAUTES TEMP. REFRACT. (FRANCE)
330       1989. VOL.25, NO.1, P.53-8, REF.18
350       ISSN 0035-3434, CODEN RIHTAV
400       NEUTRON SCATTERING AND OPTICAL INVESTIGATIONS OF THE LATTICE DYNAMICS
400       IN COPPER OXIDE SUPERCONDUCTORS AND THEIR NON-SUPERCONDUCTING
400       COUNTERPARTS ARE REVIEWED. THE RESULTS ARE DISCUSSED WITH RESPECT TO
400       THE IMPORTANCE OF PHONONS FOR THE HIGH-T/SUB C/ VALUES.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LATTICE PHONONS; NEUTRON
500       DIFFRACTION EXAMINATION OF MATERIALS.
510       NEUTRON SCATTERING; HIGH TEMPERATURE SUPERCONDUCTORS;
510       NONSUPERCONDUCTING; OPTICAL STUDIES; LATTICE DYNAMICS; COPPER OXIDE
510       SUPERCONDUCTORS; PHONONS.

DOCUMENT=            1847
 AUTH     = RIBAULT
 DT       = 02
 KN       = B40891505244
 LG       = ENGL
 SN       = ISSN 0038-1098
 YR       = 89
000       3404828
002       B40891505244
010       JOURNAL PAPER; EXPERIMENTAL.
100       MAGNETORESISTANCE EFFECTS IN SINGLE CRYSTAL LA/SUB 2/CUO/SUB 4-Y/.
200       RIBAULT, M.; JOFFRIN, J.
220       LAB. DE PHYS. DES SOLIDES, UNIV. PARIS-SUD, ORSAY, FRANCE
310       SOLID STATE COMMUN. (USA)
330       MARCH 1989. VOL.69, NO.11, P.1031-4, REF.22
350       ISSN 0038-1098, CODEN SSCOA4
400       DATA FOR THE MAGNETORESISTANCE OF A SINGLE CRYSTAL OF LA/SUB
400       2/CUO/SUB 4-Y/ ARE PRESENTED; THIS EFFECT HAS BEEN STUDIED AS A
400       FUNCTION OF TEMPERATURE AND APPLIED FIELD. A DISCUSSION OF THE
400       VARIOUS MODELS OF MAGNETISM IN THIS CRYSTAL IS ADDED AND COMPARED
400       WITH THE EXPERIMENTAL DATA.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; COPPER COMPOUNDS;
500       LANTHANUM COMPOUNDS; MAGNETORESISTANCE.
510       TEMPERATURE DEPENDENCE; MAGNETISM MODELS; SEMIMETALLIC STATE; APPLIED
510       FIELD DEPENDENCE; ANTIFERROMAGNET; MAGNETORESISTANCE; SINGLE CRYSTAL;
510       LA/SUB 2/CUO/SUB 4-Y/.
550       LA2CUO/SS LA2/SS CU/SS LA/SS O/SS.

DOCUMENT=            1848
 AUTH     = KOSTUR
 DT       = 02
 KN       = B40891505675
 LG       = RUSS
 SN       = ISSN 0503-1265
 YR       = 89
000       3405259
002       B40891505675
010       JOURNAL PAPER; THEORETICAL.
100       ANISOTROPY OF THE ORDER PARAMETER OF A HIGH-TEMPERATURE
100       SUPERCONDUCTOR AND VOLT-AMPERE CHARACTERISTICS OF TUNNEL JUNCTIONS.
200       KOSTUR, V.N.; SHAFRANYUK, S.E.
310       UKR. FIZ. ZH. (UKRAINIAN SSR)
330       FEB. 1989. VOL.34, NO.2, P.224-6, REF.7. (IN RUSSIAN)
350       ISSN 0503-1265, CODEN UFIZAW
400       ON THE BASIS OF THE SYMMETRY CLASSIFICATION OF THE ORDER PARAMETER IT
400       IS SHOWN THAT WHEN INTERPRETING THE SHAPE OF THE VOLT-AMPERE
400       CHARACTERISTICS OF TUNNEL JUNCTIONS OF THE METAL-OXIDE SUPERCONDUCTOR
400       (MOS)-INSULATOR-SUPERCONDUCTOR, IT IS NECESSARY TO TAKE INTO ACCOUNT
400       THE ANISOTROPIC NATURE OF MOS SUPERCONDUCTIVITY, I.E. TO SUGGEST THE
400       POSSIBILITY OF PAIRING WITH A NONZERO ORBITAL MOMENT (OR SPIN) OF
400       SUPER-CONDUCTING PAIRS WITH THE CHARGE 2E. THE DENSITY OF STATES FOR
400       P- AND D-PAIRING WAS CALCULATED WITH ALLOWANCE FOR CONCRETE CRYSTAL
400       SYMMETRY.
500       COOPER PAIRS; CRYSTAL SYMMETRY; ELECTRONIC DENSITY OF STATES;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTIVE TUNNELLING.
510       ORDER PARAMETER ANISOTROPY; SIS;
510       SUPERCONDUCTOR-INSULATOR-SUPERCONDUCTOR JUNCTION; P-PAIRING;
510       HIGH-TEMPERATURE SUPERCONDUCTOR; VOLT-AMPERE CHARACTERISTICS; TUNNEL
510       JUNCTIONS; SYMMETRY CLASSIFICATION; NONZERO ORBITAL MOMENT;
510       SUPER-CONDUCTING PAIRS; DENSITY OF STATES; D-PAIRING; CRYSTAL
510       SYMMETRY.

DOCUMENT=            1849
 AUTH     = REBUT
 DT       = 11
 KN       = B40891505767
 LG       = ENGL
 SN       = REP. JET-P(88)58
 YR       = 88
000       3405351
002       B40891505767
010       REPORT; THEORETICAL.
100       JET RESULTS AND THE PROSPECTS FOR FUSION.
200       REBUT, P.-H.; LALLIA, P.P.
210       JET JOINT UNDERTAKING, ABINGDON, UK
310       UK
330       1988. 57P., REF.13
350       REP. JET-P(88)58
400       TO FULLY TACKLE THE PROBLEMS OF A CONTROLLED BURNING PLASMA FOR AT
400       LEAST DAYS IN SEMI-CONTINUOUS OPERATION, THE PLASMA OF THE NEXT STEP
400       TOKAMAK SHOULD BE SIMILAR IN SIZE AND PERFORMANCE TO AN ENERGY
400       PRODUCING REACTOR. THE SCIENTIFIC AND TECHNICAL AIMS OF SUCH A
400       MACHINE SHOULD BE TO STUDY A BURNING PLASMA, TO TEST WALL TECHNOLOGY,
400       TO PROVIDE A TEST-BED FOR BREEDING BLANKETS AND ABOVE ALL TO
400       DEMONSTRATE TO POTENTIAL AND VIABILITY OF FUSION AS AN ENERGY SOURCE.
400       THE MAIN CHARACTERISTICS OF THE DESIGN OF A THERMONUCLEAR FURNACE
400       DEDICATED TO THESE OBJECTIVES ARE PRESENTED. BASICALLY THE PLASMA
400       PARAMETERS ARE SCALED UP FROM JET BY A LINEAR FACTOR OF 2.5. MAGNETS,
400       EITHER SUPERCONDUCTING OR OF COPPER, SHOULD BE ABLE TO OPERATE
400       CONTINUOUSLY. THE PRESENT DESIGN USES WATERCOOLED COPPER MAGNETS TO
400       BENEFIT FROM PROVEN TECHNOLOGY AND CONSISTS OF 20 IDENTICAL SECTORS.
400       EACH INCORPORATES A TOROIDAL FIELD COIL, MECHANICAL STRUCTURE AND A
400       PART OF THE VACUUM VESSEL WALL AS ONE INTEGRATED UNIT. A SINGLE-NULL
400       DIVERTOR CONFIGURATION ENSURES HELIUM EXHAUST AND POSSIBLY BENEFITS
400       FROM AN H-MODE TO REACH THE IGNITION DOMAIN. THE X-POINT POSITION
400       RELATIVE TO THE DUMP PLATES WOULD BE SWEPT TO LIMIT THE WALL LOADING
400       TO 2MW/M/SUP 2/. BY CHANGING THE OPERATING DENSITY, THE THERMONUCLEAR
400       POWER COULD BE VARIED FROM 0.5 TO 4GW(TH), ACCORDING TO REQUIREMENTS
400       ON POWER LOADING AND TRITIUM CONSUMPTION.
500       FUSION REACTOR THEORY AND DESIGN.
510       CONTROLLED BURNING PLASMA; SEMI-CONTINUOUS OPERATION; NEXT STEP
510       TOKAMAK; ENERGY PRODUCING REACTOR; SCIENTIFIC; TECHNICAL AIMS; WALL
510       TECHNOLOGY; TEST-BED; BREEDING BLANKETS; POTENTIAL; VIABILITY OF
510       FUSION; ENERGY SOURCE; THERMONUCLEAR FURNACE; PLASMA PARAMETERS; JET;
510       SUPERCONDUCTING; WATERCOOLED COPPER MAGNETS; TOROIDAL FIELD COIL;
510       MECHANICAL STRUCTURE; VACUUM VESSEL WALL; SINGLE-NULL DIVERTOR
510       CONFIGURATION; EXHAUST; H-MODE; IGNITION DOMAIN; X-POINT POSITION;
510       DUMP PLATES; WALL LOADING; OPERATING DENSITY; POWER LOADING;
510       CONSUMPTION; CU; HE; T.
550       CU/EL; HE/EL; T/EL.

DOCUMENT=            1850
 AUTH     = RENAUDIN
 DT       = 06
 KN       = B40891506553
 LG       = ENGL
 SN       = ISBN 0-306-42783-4
 YR       = 87
000       3406137
002       B40891506553
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC BEHAVIOR OF 1D HELICOIDAL CHAINS IN BA/SUB 7/CUFE/SUB
100       6/F/SUB 34/. A NEW KIND OF FERRIMAGNETIC 1D SYSTEM.
200       RENAUDIN, J.; FEREY, G.; ZEMIRLI, M.; VARRET, F. / DE KOZAK, A.;
200       DRILLON, M.
220       UNIV. DU MANS, FRANCE
300       ORGANIC AND INORGANIC LOW-DIMENSIONAL CRYSTALLINE MATERIALS.
300       PROCEEDINGS OF A NATO ADVANCED RESEARCH WORKSHOP.
305       MINORCA, SPAIN.  3-8 MAY 1987.  NATO.
310       USA
320       DELHAES, P.; DRILLON, M.
330       NEW YORK, NY, USA: PLENUM, 1987. XIII+482P., P.389-92, REF.7
350       ISBN 0-306-42783-4
400       ONE WAY OF OBTAINING NEW LOW-DIMENSIONAL MAGNETS IS TO STUDY
400       PSEUDO-BINARY DIAGRAMS, IN WHICH ONE LIMIT CORRESPONDS TO A 1D MAGNET
400       AND THE OTHER ONE TO A 2D COMPOUND. THE AUTHORS PREVIOUSLY DEVELOPED
400       THIS METHOD AND CHOSE THE SYSTEM BAFE/SUB 5/(1D)-BACUF/SUB 4/(2D)
400       WHICH GATHERS S=5/2 AND S=1/2 SPINS, OF SPECIAL INTEREST FOR MAGNETIC
400       INVESTIGATIONS. IN THIS SYSTEM APPEARS A NEW PHASE, BA/SUB 7/CUFE/SUB
400       6/F/SUB 34/(1), WHOSE STRUCTURE WAS RECENTLY SOLVED (2); ITS
400       DESCRIPTION IN TERMS OF ISOLATED COMPLEX CHAINS CORRESPONDS TO THE
400       FIRST PART OF THIS PAPER; THE SECOND PART WILL DEAL WITH MAGNETIC
400       PROPERTIES AND, FINALLY, THE CORRESPONDING MOSSBAUER DATA IS GIVEN IN
400       THE LAST SECTION.
500       BARIUM COMPOUNDS; COPPER COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; FERRIMAGNETIC PROPERTIES OF SUBSTANCES; MAGNETIC
500       SUSCEPTIBILITY; MOSSBAUER EFFECT.
510       MAGNETIC BEHAVIOUR; MAGNETIC SUSCEPTIBILITY; CRYSTAL STRUCTURE; 1D
510       HELICOIDAL CHAINS; FERRIMAGNETIC 1D SYSTEM; LOW-DIMENSIONAL MAGNETS;
510       ISOLATED COMPLEX CHAINS; MOSSBAUER DATA; BA/SUB 7/CUFE/SUB 6/F/SUB
510       34/.
550       BA7CUFE6F34/SS BA7/SS F34/SS FE6/SS BA/SS CU/SS FE/SS F/SS.

DOCUMENT=            1851
 AUTH     = OROZCO
 DT       = 06
 KN       = B40891506904
 LG       = ENGL
 SN       = ISBN 0-306-42995-0
 YR       = 88
000       3406488
002       B40891506904
010       CONFERENCE PAPER; EXPERIMENTAL.
100       GROWTH, PROPERTIES AND CHARACTERISATION OF METAL MULTILAYERS.
200       OROZCO, P.; BOUZAR, H.; JEPSON, J.R.; DINGLEY, D.J.; JENNETT, N.M.
220       H.H. WILLS PHYS. LAB., BRISTOL UNIV., UK
300       PHYSICS, FABRICATION AND APPLICATIONS OF MULTILAYERED STRUTURES.
300       PROCEEDINGS OF A NATO ADVANCED STUDY INSTITUTE.
305       ILE DE BENDOR, BANDOL, FRANCE.  22 JUNE-4 JULY 1987.
310       USA
320       DHEZ, P.; WEISBUCH, C.
330       NEW YORK, NY, USA: PLENUM, 1988. XIII+416P., P.363, REF.0
350       ISBN 0-306-42995-0
400       SUMMARY FORM ONLY GIVEN. TWO EVAPORATION UNITS HAVE BEEN CONSTRUCTED
400       FOR THE PREPARATION OF METAL MULTILAYERS USING THERMAL AND ELECTRON
400       BOMBARD SOURCES. CUNI, CUV AND CUFE MULTILAYERS HAVE BEEN PRODUCED
400       WITH THE EXPLICIT INTENTION OF CORRELATING PHYSICAL PROPERTIES WITH
400       STRUCTURE AS DETERMINED BY TRANSMISSION ELECTRON MICROSCOPY (TEM).
400       LOW TEMPERATURE RESISTIVITY AND INTERDIFFUSION MEASUREMENTS HAVE BEEN
400       PERFORMED UPON A SERIES OF CUNI FOILS. SUPERCONDUCTING TRANSITION
400       EFFECTS HAVE BEEN EXPLORED FOR CUV FOILS.
500       CHEMICAL INTERDIFFUSION; COPPER; ELECTRONIC CONDUCTION IN METALLIC
500       THIN FILMS; FOILS; INTERFACE STRUCTURE; IRON; METALLIC THIN FILMS;
500       NICKEL; SUPERCONDUCTING THIN FILMS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE; TRANSMISSION ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; VANADIUM; VAPOUR DEPOSITION.
510       LOW TEMPERATURE; SUPERCONDUCTING TRANSITION EFFECTS; METAL
510       MULTILAYERS; EVAPORATION UNITS; PHYSICAL PROPERTIES; STRUCTURE;
510       TRANSMISSION ELECTRON MICROSCOPY; TEM; RESISTIVITY; INTERDIFFUSION;
510       FOILS; CU-NI; CU-V; CU-FE.
550       CU-NI/INT CU/INT NI/INT CU/EL NI/EL; CU-V/INT CU/INT V/INT CU/EL
550       V/EL; CU-FE/INT CU/INT FE/INT CU/EL FE/EL.

DOCUMENT=            1852
 DT       = 05
 KN       = B40891507354
 LG       = ENGL
 SN       = ISBN 2-86332-059-9
 YR       = 88
000       3406938
002       B40891507354
010       CONFERENCE PROCEEDINGS.
100       LOW TEMPERATURE DETECTORS FOR NEUTRINOS AND DARK MATTER II.
100       PROCEEDINGS OF THE SECOND EUROPEAN WORKSHOP ON LOW TEMPERATURE
100       DEVICES FOR THE DETECTION OF LOW ENERGY NEUTRINOS AND DARK MATTER.
305       ANNECY-LE-VIEUX, FRANCE.  2-6 MAY 1988.  CNRS. INST. NAT. PHYS. NUCL.
305       ? PHYS. PARTICULES.
310       FRANCE
320       GONZALEZ-MESTRES, L.; PERRET-GALLIX, D.
330       GIF SUR YVETTE, FRANCE: EDITIONS FRONTIERS, 1988. X+518P.
350       ISBN 2-86332-059-9
400       THE FOLLOWING TOPICS WERE DEALT WITH: BOLOMETRIC TECHNIQUES,
400       SUPERCONDUCTING TUNNELLING JUNCTIONS, SUPERHEATED SUPERCONDUCTING
400       GRANULES, HIGH TEMPERATURE SUPERCONDUCTORS, INP DETECTORS FOR SOLAR
400       NEUTRINOS, LOW TEMPERATURE SCINTILLATION, AND ELECTRONICS FOR
400       CRYOGENIC DETECTORS.
500       COSMIC RAY APPARATUS; COSMIC RAY NEUTRINOS; COSMOLOGY;
500       LOW-TEMPERATURE TECHNIQUES; SEMICONDUCTOR COUNTERS; SUPERCONDUCTING
500       DEVICES.
510       INDUCED CURRENT DETECTORS; WIMP; QUASAR ENERGETICS; BOLOMETRIC
510       TECHNIQUES; SUPERCONDUCTING TUNNELLING JUNCTIONS; SUPERHEATED
510       SUPERCONDUCTING GRANULES; HIGH TEMPERATURE SUPERCONDUCTORS; SOLAR
510       NEUTRINOS; LOW TEMPERATURE SCINTILLATION; ELECTRONICS; CRYOGENIC
510       DETECTORS; INP DETECTORS; GE DETECTORS.
550       GE/EL; INP/BIN IN/BIN P/BIN.

DOCUMENT=            1853
 AUTH     = DE
 DT       = 06
 KN       = B40891507371
 LG       = ENGL
 YR       = 88
000       3406955
002       B40891507371
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ESR STUDIES OF YBA/SUB 2/CU/SUB 3/O/SUB 7-X/, Y/SUB 2/BACUO/SUB 5/
100       AND BACUO/SUB 2+ OMEGA /.
200       DE MESQUITA, R.N.; CASTILHO, J.H.; BARBERIS, G.E.; RETTORI, C.;
200       TORRIANI, I.; DE LIMA, O.F.; GAMA, S.; JARDIM, R. / TERRILE, M.C.;
200       BASSO, H.; NASCIMENTO, O.R.
220       INST. DE FISICA, UNIV. ESTADUAL DE CAMPINAS, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.319-22, REF.9
400       X AND Q BAND ESR SPECTRA OF THE HIGH T/SUB C/ SUPERCONDUCTOR YBA/SUB
400       2/CU/SUB 3/O/SUB 7-X/ AND THE RELATED COMPOUNDS Y/SUB 2/BACUO/SUB 5/
400       AND BACUO/SUB 2+W/ ARE REPORTED. THE AUTHORS STUDY THE ROOM
400       TEMPERATURE SPECTRA AS A FUNCTION OF THE OXYGEN CONCENTRATIONS X AND
400       W IN THE SAMPLES, AND THEY FIT THE POWDER SPECTRA WITH A MODEL
400       HAMILTONIAN FOR EXCHANGE NARROWED COUPLED CU/SUP 2+/ IONS. THEY
400       CONCLUDE THAT THE CU ATOMS IN THE SUPERCONDUCTOR ARE NOT ESR ACTIVE,
400       AND THAT THE OBSERVED RESONANCES COME FROM OTHER RESIDUAL PHASES WITH
400       CONCENTRATIONS SMALLER THAN 5000 P.P.M., WHICH CANNOT BE OBSERVED BY
400       X-RAY DIFFRACTION.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; PARAMAGNETIC
500       RESONANCE OF IRON GROUP IONS AND IMPURITIES; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; X BAND; ELECTRON SPIN RESONANCE;
510       O CONTENT DEPENDENCE; Q BAND; ESR SPECTRA; ROOM TEMPERATURE SPECTRA;
510       POWDER SPECTRA; MODEL HAMILTONIAN; EXCHANGE NARROWED COUPLED CU/SUP
510       2+/ IONS; 300 K; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/; Y/SUB 2/BACUO/SUB 5/;
510       BACUO/SUB 2+ OMEGA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; Y2BACUO5/SS BA/SS
550       CU/SS O5/SS Y2/SS O/SS Y/SS; BACUO/SS BA/SS CU/SS O/SS.
560       TEMPERATURE 3.0 E+02 K.

DOCUMENT=            1854
 AUTH     = MERCADER
 DT       = 06
 KN       = B40891507372
 LG       = ENGL
 YR       = 88
000       3406956
002       B40891507372
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MOSSBAUER SPECTROSCOPIC STUDIES OF YBA/SUB 2/CU/SUB 3-X/SN/SUB
100       X/O/SUB Y/.
200       MERCADER, R.C.; PUNTE, G. / AJA, P.; MONDANI, M.; QUINTANA, G.;
200       SIRKIN, H.
220       DEPT. DE FISICA, UNIV. NACIONAL DE LA PLATA, ARGENTINA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.323-30, REF.15
400       RESISTIVITY MEASUREMENTS (77-300 K), X-RAY POWDER DIFFRACTION (300 K)
400       AND MOSSBAUER SPECTRA (77-300 K) HAVE BEEN PERFORMED ON SAMPLES OF
400       Y-BA-CU-O SYSTEM DOPED WITH DIFFERENT SN CONCENTRATIONS. THE MATERIAL
400       OBTAINED SHOWS NO SIGNIFICANT DROP IN THE CRITICAL TEMPERATURE AND A
400       TRANSITION WIDTH AS SHARP AS THE UNDOPED ONE FOR UP TO X=0.15.
400       MOSSBAUER DATA INDICATE A +4 VALENCE STATE FOR THE SN THAT IS LIKELY
400       SUBSTITUTING THE CU SITE. POSSIBLE SUBSTITUTIONS OF SN IN OTHER
400       LATTICE SITES ARE ANALYZED. THE RESULTS OBTAINED ARE CORRELATED WITH
400       OTHER EXPERIMENTAL STUDIES.
500       BARIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MOSSBAUER EFFECT; SUPERCONDUCTING TRANSITION TEMPERATURE; X-RAY
500       DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; RESISTIVITY; SN SUBSTITUTION
510       SITES; X-RAY POWDER DIFFRACTION; MOSSBAUER SPECTRA; CRITICAL
510       TEMPERATURE; TRANSITION WIDTH; +4 VALENCE STATE; CU SITE; 77 TO 300
510       K; YBA/SUB 2/CU/SUB 3-X/SN/SUB X/O/SUB Y/.
550       YBA2CUSNO/SS BA2/SS BA/SS CU/SS SN/SS O/SS Y/SS.
560       TEMPERATURE 7.7 E+01 TO 3.0 E+02 K.

DOCUMENT=            1855
 AUTH     = SILVA
 DT       = 06
 KN       = B40891507373
 LG       = ENGL
 YR       = 88
000       3406957
002       B40891507373
010       CONFERENCE PAPER; EXPERIMENTAL.
100       PHOTOACOUSTIC CHARACTERIZATION OF SUPERCONDUCTING OXIDES: THERMAL
100       DIFFUSIVITY.
200       SILVA, E.C.; VARGAS, H.; BENTO, A.C.; JARDIM, R.F.; GAMA, S. /
200       PINHEIRO, E.A.; GALAMBECK, F.
220       INST. DE FISICA, UNIV. ESTADUAL DE CAMPINAS, SAO PAULO, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.331-4, REF.9
400       THE PHOTOACOUSTIC THERMAL CHARACTERIZATION OF SOME SUPERCONDUCTING
400       OXIDES IS DISCUSSED. THE PHYSICAL QUANTITY IS USED AS A THERMAL
400       MONITORING PARAMETER IS THE THERMAL DIFFUSIVITY, WHICH IS MEASURED
400       USING THE PHOTOACOUSTIC PHASE DATA. THE AUTHOR DEMONSTRATED THAT
400       THERMAL DIFFUSIVITY IS VERY SENSITIVE TO THE COMPOSITION AND POROSITY
400       VARIATIONS. THEY DISCUSS SOME CORRELATIONS BETWEEN THE THERMAL
400       DIFFUSIVITY BEHAVIOR AND THE SUPERCONDUCTING OXIDES PROPERTIES.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PHOTOACOUSTIC SPECTRA; POROSITY;
500       STOICHIOMETRY; THERMAL DIFFUSIVITY.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING OXIDES; THERMAL
510       DIFFUSIVITY; PHOTOACOUSTIC THERMAL CHARACTERIZATION; THERMAL
510       MONITORING PARAMETER; COMPOSITION; POROSITY VARIATIONS.

DOCUMENT=            1856
 AUTH     = AKINAGA
 DT       = 06
 KN       = B40891507374
 LG       = ENGL
 YR       = 88
000       3406958
002       B40891507374
010       CONFERENCE PAPER; EXPERIMENTAL.
100       I-V CHARACTERISTICS IN SUPERCONDUCTING YBA/SUB 2/CU/SUB 3/O/SUB 7-
100       DELTA / FILMS.
200       AKINAGA, M.; ABUKAY, D.; SOARES, V.; RINDERER, L.
220       INST. OF EXPERIMENTAL PHYS., LAUSANNE UNIV., SWITZERLAND
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.335-8, REF.4
400       THE TEMPERATURE DEPENDENCES OF THE ELECTRICAL RESISTIVITY AND I-V
400       CHARACTERISTICS OF THE HIGH-T/SUB C/ YBA/SUB 2/CU/SUB 3/O/SUB 7-
400       DELTA / FILMS PREPARED BY RF MAGNETRON SPUTTERING HAVE BEEN STUDIED.
400       THE AUTHORS HAVE CLEARLY OBSERVED THE I-V CHARACTERISTICS DUE TO
400       SUPERCONDUCTING WEAK LINKS WHERE THE GRAIN BOUNDARIES PLAY A DOMINANT
400       ROLE.
500       BARIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; GRAIN BOUNDARIES; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; JOSEPHSON EFFECT; SPUTTERED COATINGS;
500       SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; RF MAGNETRON SPUTTERED FILMS;
510       TEMPERATURE DEPENDENCES; ELECTRICAL RESISTIVITY; I-V CHARACTERISTICS;
510       SUPERCONDUCTING WEAK LINKS; GRAIN BOUNDARIES; SUPERCONDUCTING YBA/SUB
510       2/CU/SUB 3/O/SUB 7- DELTA / FILMS.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1857
 AUTH     = APONTE
 DT       = 06
 KN       = B40891507375
 LG       = ENGL
 YR       = 88
000       3406959
002       B40891507375
010       CONFERENCE PAPER; EXPERIMENTAL.
100       CRITICAL CURRENTS IN THE HIGH T/SUB C/ SUPERCONDUCTORS DY/SUB
100       1/BA/SUB 2/CU/SUB 3/O/SUB 7-Y/, Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-Y/
100       AND BI/SUB 2/CA/SUB 2/SR/SUB 2/CU/SUB 6/O/SUB Y/.
200       APONTE, J.; ABACHE, H.C.; OCTAVIO, M.
220       CENTRO DE FISICA, INST. VENEZOLANO DE INVESTIGACIONES CIENTIFICAS,
220       CARACAS, VENEZUELA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.339-42, REF.5
400       THE AUTHORS REPORT ON THE TEMPERATURE DEPENDENCE OF THE CRITICAL
400       CURRENT OF THE HIGH T/SUB C/ SUPERCONDUCTORS DY/SUB 1/BA/SUB 2/CU/SUB
400       3/O/SUB 7-Y/, Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-Y/ AND BI/SUB
400       2/CA/SUB 2/SR/SUB 2/CU/SUB 6/O/SUB Y/. THEY FIND THE CRITICAL CURRENT
400       TO VARY LINEARLY WITH (T/SUB C/-T). THIS IS CONSISTENT WITH A NETWORK
400       OF JOSEPHSON-COUPLED SUPERCONDUCTING GRAINS, WHERE THE CRITICAL
400       CURRENT IS DETERMINED BY THE BREAKDOWN OF THE COUPLING. CLOSE TO
400       T/SUB C/, BREAKDOWN IN THE GRAINS BECOMES SIGNIFICANT RESULTING IN A
400       NONLINEAR TAIL CLOSE TO T/SUB C/. USING THIS MODEL THEY OBTAIN GOOD
400       QUANTITATIVE AGREEMENT WITH THE PREDICTIONS OF A GINSBURG-LANDAU
400       MODEL FOR THIS SYSTEM.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL
500       CURRENTS; DYSPROSIUM COMPOUNDS; GINZBURG-LANDAU THEORY;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT; STRONTIUM
500       COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; COUPLING BREAKDOWN; TEMPERATURE
510       DEPENDENCE; CRITICAL CURRENT; JOSEPHSON-COUPLED SUPERCONDUCTING
510       GRAINS; NONLINEAR TAIL; GINSBURG-LANDAU MODEL; DY/SUB 1/BA/SUB
510       2/CU/SUB 3/O/SUB 7-Y/; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-Y/; BI/SUB
510       2/CA/SUB 2/SR/SUB 2/CU/SUB 6/O/SUB Y/.
550       DY1BA2CU3O/SS BA2/SS CU3/SS DY1/SS BA/SS CU/SS DY/SS O/SS;
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS;
550       BI2CA2SR2CU6O/SS BI2/SS CA2/SS CU6/SS SR2/SS BI/SS CA/SS CU/SS SR/SS
550       O/SS.

DOCUMENT=            1858
 AUTH     = DURNY
 DT       = 06
 KN       = B40891507376
 LG       = ENGL
 YR       = 88
000       3406960
002       B40891507376
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MICROWAVE ABSORPTION AND RECTIFICATION IN SUPERCONDUCTING YBA/SUB
100       2/CU/SUB 3/O/SUB 7/.
200       DURNY, R.; HAUTALA, J.; DUCHARME, S.; ZHENG, D.J.; SYMKO, O.G.;
200       TAYLOR, P.C.
220       DEPT. OF PHYS., UTAH UNIV., SALT LAKE CITY, UT, USA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.343-4, REF.3
400       THE MAGNETIC FIELD DEPENDENT NONRESONANT MICROWAVE ABSORPTION IN
400       YBA/SUB 2/CU/SUB 3/O/SUB 7/ PROVIDES AN EXTREMELY SENSITIVE AND
400       CONVENIENT METHOD OF CHARACTERIZING THE NEW HIGH T/SUB C/
400       SUPERCONDUCTORS. THE AUTHORS ALSO OBSERVE THAT THE INCIDENT MICROWAVE
400       RADIATION INDUCES A DC VOLTAGE ACROSS SAMPLES WITH A STRONG FIELD
400       DEPENDENCE AT LOW MAGNETIC FIELDS. THE RESULTS ARE EXPLAINED IN TERMS
400       OF DISSIPATIVE FLUXON MOTION ALONG NATURALLY OCCURRING BARRIERS
400       INSIDE THE SUPERCONDUCTING CRYSTALLITES.
500       BARIUM COMPOUNDS; FLUX FLOW; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MICROWAVE SPECTRA OF INORGANIC SOLIDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; INDUCED DC VOLTAGE;
510       RECTIFICATION; MAGNETIC FIELD DEPENDENT NONRESONANT MICROWAVE
510       ABSORPTION; INCIDENT MICROWAVE RADIATION; DISSIPATIVE FLUXON MOTION;
510       SUPERCONDUCTING CRYSTALLITES; YBA/SUB 2/CU/SUB 3/O/SUB 7/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1859
 AUTH     = ABACHE
 DT       = 06
 KN       = B40891507377
 LG       = ENGL
 YR       = 88
000       3406961
002       B40891507377
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ELECTRON SPIN RESONANCE OF THE HIGH T/SUB C/ SUPERCONDUCTING MATERIAL
100       DYBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
200       ABACHE, H.C.; OCTAVIO, M.; APONTE, J.; SILVA, P.
220       INST. VENEZOLANO DE INVESTIGACIONES CIENTIFICAS, CENTRO DE FISICA,
220       CARACAS, VENEZUELA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.345-8, REF.8
400       ELECTRON SPIN RESONANCE EXPERIMENTS, IN THE TEMPERATURE RANGE 76-350
400       K, ARE REPORTED FOR POLYCRYSTALLINE SINTERED SAMPLES OF DYBA/SUB
400       2/CU/SUB 3/O/SUB 7-X/. STUDIES SHOW THAT CU IS PRESENT ONLY IN THE
400       CU(II) STATES. IN ADDITION THE AUTHORS OBSERVED INHOMOGENEOUS
400       BROADENING OF THE LINE SHAPE AND AT LOW TEMPERATURES, THE G-VALUE
400       INCREASES GRADUALLY TOWARDS 2.3. ABOVE T/SUB C/, THE G-VALUE DOES NOT
400       CHANGE APPRECIABLY. SOME INTERPRETATION REGARDING THE EPR SIGNAL
400       BEHAVIOUR IN THE SUPERCONDUCTING STATE IS DISCUSSED.
500       BARIUM COMPOUNDS; DYSPROSIUM COMPOUNDS; EPR LINE BREADTH; G-FACTOR;
500       HIGH-TEMPERATURE SUPERCONDUCTORS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ESR; INHOMOGENEOUS LINE SHAPE
510       BROADENING; ELECTRON SPIN RESONANCE; ELECTRON PARAMAGNETIC RESONANCE;
510       POLYCRYSTALLINE SINTERED SAMPLES; CU(II) STATES; G-VALUE; EPR SIGNAL
510       BEHAVIOUR; 76 TO 350 K; DYBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       DYBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS DY/SS O/SS.
560       TEMPERATURE 7.6 E+01 TO 3.5 E+02 K.

DOCUMENT=            1860
 AUTH     = DE
 DT       = 06
 KN       = B40891507378
 LG       = ENGL
 YR       = 88
000       3406962
002       B40891507378
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ESR IN THE Y-BA-CU-O SYSTEM.
200       DE BIASI, R.S.; FERNANDES, A.A.R.; FERREIRA, C.L.; PASCUAL, R.;
200       SAAVEDRA, A.
220       SECAO DE ENGENHARIA DE MATERIAIS, INST. MIL. DE ENGENHARIA, RIO DE
220       JANEIRO, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.349-54, REF.10
400       ESR MEASUREMENTS HAVE BEEN PERFORMED ON THREE DIFFERENT PHASES OF THE
400       Y-BA-CU-O SYSTEM: A BLACK ORTHORHOMBIC PHASE, A BLACK TETRAGONAL
400       PHASE AND A GREEN PHASE. PARAMAGNETIC RESONANCE LINES WITH G
400       APPROXIMATELY=2 WERE OBSERVED IN ALL PHASES, BUT ONLY THE
400       SUPERCONDUCTING PHASE (THE BLACK ORTHORHOMBIC PHASE) SHOWED A STRONG
400       MICROWAVE ABSORPTION AT LOW MAGNETIC FIELDS. THIS LOW-FIELD
400       ABSORPTION LINE IS ONLY OBSERVED BELOW THE SUPERCONDUCTING TRANSITION
400       TEMPERATURE, AS DETERMINED FROM MAGNETIC SUSCEPTIBILITY MEASUREMENTS,
400       AND THUS SEEMS TO BE CHARACTERISTIC OF THE SUPERCONDUCTING STATE.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; PARAMAGNETIC
500       RESONANCE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; EPR; ELECTRON SPIN RESONANCE;
510       PARAMAGNETIC RESONANCE LINES; ESR; BLACK ORTHORHOMBIC PHASE; BLACK
510       TETRAGONAL PHASE; GREEN PHASE; SUPERCONDUCTING PHASE; STRONG
510       MICROWAVE ABSORPTION; LOW-FIELD ABSORPTION LINE; SUPERCONDUCTING
510       TRANSITION TEMPERATURE; MAGNETIC SUSCEPTIBILITY; Y-BA-CU-O SYSTEM.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1861
 AUTH     = LOPEZ
 DT       = 06
 KN       = B40891507379
 LG       = ENGL
 YR       = 88
000       3406963
002       B40891507379
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EPR ANALYSIS IN M-BA-CU-O COMPOUNDS.
200       LOPEZ, C.; MARINO, A. / ESGUERRA, M.; FRANCO, G.
220       DEPT. DE FISICA, UNIV. NACIONAL DE COLOMBIA, BOGOTA, COLOMBIA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.355-8, REF.8
400       THE AUTHORS REPORT EPR MEASUREMENTS IN THE SYSTEMS M-BA-CU-O (M=Y,
400       LA). AN ABSORPTION LINE ATTRIBUTED TO CU/SUP ++/ WAS OBSERVED IN BOTH
400       Y/SUB 2/BACUO/SUB 5/ AND Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-Y/
400       COMPOUNDS AND THEIR TEMPERATURE DEPENDENCE (100-300 K) STUDIED. THE
400       SPECTRA OF LA/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-Y/ (NOMINAL
400       COMPOSITION) ANNEALED IN AN OXYGEN FLOW SHOWED A SIMILAR SIGNAL AS
400       THE ONE OBSERVED IN THE Y COMPOUNDS. AS PREPARED LA SAMPLES SHOWED,
400       HOWEVER, AN ADDITIONAL BROAD LINE (0.05-0.17 T) WHICH DECREASES
400       STRONGLY BY HEAT TREATMENT IN OXYGEN FLOW. ADDITIONALLY THE BEHAVIOUR
400       OF THIS LINE AS A FUNCTION OF TEMPERATURE SHOWED TWO INTERESTING
400       FEATURES: THE LINEWIDTH VARIES AS DELTA HPP ALPHA E/SUP -T/TO/ AND
400       THE LINE INTENSITY AS I ALPHA E/SUP A/T/.
500       ANNEALING; BARIUM COMPOUNDS; EPR LINE BREADTH; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LANTHANUM COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; ELECTRON PARAMAGNETIC RESONANCE;
510       O/SUB 2/ FLOW ANNEALING; EPR ANALYSIS; ABSORPTION LINE; TEMPERATURE
510       DEPENDENCE; ADDITIONAL BROAD LINE; HEAT TREATMENT; LINEWIDTH; LINE
510       INTENSITY; 100 TO 300 K; Y/SUB 2/BACUO/SUB 5/; Y/SUB 1/BA/SUB
510       2/CU/SUB 3/O/SUB 7-Y/; LA/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-Y/.
550       Y2BACUO5/SS BA/SS CU/SS O5/SS Y2/SS O/SS Y/SS; Y1BA2CU3O/SS BA2/SS
550       CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS; LA1BA2CU3O/SS BA2/SS CU3/SS
550       LA1/SS BA/SS CU/SS LA/SS O/SS.
560       TEMPERATURE 1.0 E+02 TO 3.0 E+02 K.

DOCUMENT=            1862
 AUTH     = SAITOVIT
 DT       = 06
 KN       = B40891507380
 LG       = ENGL
 YR       = 88
000       3406964
002       B40891507380
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC PHASE PRESENT IN YBA/SUB 2/(CU/SUB 1-X/FE/SUB X/)/SUB
100       3/O/SUB 6/ OXIDES.
200       SAITOVITCH, E.B.; AZEVEDO, I.S.; SCORZELLI, R.B.
220       CENTRO BRASILEIRO DE PESQUISAS FISICAS, RIO DE JANEIRO, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.359-62, REF.2
400       THE MOSSBAUER STUDY OF OXYGEN DEFICIENT /SUP 57/FE:YBA/SUB 2/CU/SUB
400       3/O/SUB 6/ OXIDES WAS VERY IMPORTANT TO ESTABLISH THE PREFERENTIAL
400       OCCUPATION OF CU1 SITES BY FE AT VERY LOW CONCENTRATIONS. THE IRON
400       SPECIES CHARACTERISTIC OF THIS PHASE ( DELTA =0.06 MM/S, QS=2.0 MM/S)
400       MAY BE PRESENT IN SOME /SUP 57/FE:YBA/SUB 2/CU/SUB 3/O/SUB 7/
400       SAMPLES, AND INDUCED MANY AUTHORS TO PROPOSE WRONGLY THE OCCUPATION
400       OF CU2 SITES. RECENT DETERMINATION OF ANTIFERROMAGNETIC ORDERING FOR
400       CU MOMENTS IN CU2 SITES (T APPROXIMATELY 450 K) AND EARLY OBSERVATION
400       OF A SMALL PROPORTION OF A MAGNETIC PHASE AT ROOM TEMPERATURE FOR
400       /SUP 57/FE:YBA/SUB 2/CU/SUB 3/O/SUB 6/ LEAD THE AUTHORS TO PERFORM
400       SYSTEMATIC STUDIES OF YBA/SUB 2/(CU/SUB 1-X/FE/SUB X/)/SUB 3/O/SUB 6/
400       WITH X=0.005, 0.01, 0.05, 0.10 AND 0.15.
500       ANTIFERROMAGNETIC PROPERTIES OF SUBSTANCES; BARIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC MOMENTS; MAGNETIC
500       SUPERCONDUCTORS; MOSSBAUER EFFECT; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O DEFICIENT OXIDES; MOSSBAUER
510       STUDY; PREFERENTIAL OCCUPATION; CU1 SITES; CU2 SITES;
510       ANTIFERROMAGNETIC ORDERING; CU MOMENTS; MAGNETIC PHASE; ROOM
510       TEMPERATURE; YBA/SUB 2/(CU/SUB 1-X/FE/SUB X/)/SUB 3/O/SUB 6/ OXIDES;
510       YBA/SUB 2/CU/SUB 3/O/SUB 6/:FE.
550       YBA2CU3O6:FE/SS YBA2CU3O6/SS BA2/SS CU3/SS BA/SS CU/SS FE/SS O6/SS
550       O/SS Y/SS FE/EL FE/DOP; YBA2CUFEO6/SS BA2/SS BA/SS CU/SS FE/SS O6/SS
550       O/SS Y/SS.

DOCUMENT=            1863
 AUTH     = NICOLSKY
 DT       = 06
 KN       = B40891507381
 LG       = ENGL
 YR       = 88
000       3406965
002       B40891507381
010       CONFERENCE PAPER; THEORETICAL.
100       INTRINSIC JOSEPHSON JUNCTIONS IN HIGH-T/SUB C/ SUPERCONDUCTORS.
200       NICOLSKY, R.
220       INST. DE FISICA, UNIV. FEDERAL DO RIO DE JANEIRO, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.363-7, REF.9
400       THE MAGNETIZATION EXPERIMENTS INDICATE THAT THE HIGH-T/SUB C/
400       SUPERCONDUCTORS HAVE INTRINSIC JOSEPHSON NETWORKS BETWEEN GRAINS, AND
400       ALSO WITHIN THE GRAINS AND SINGLE CRYSTALS. THE AUTHORS ESTABLISH A
400       CRITERION FOR CATEGORIZING THE JOSEPHSON JUNCTIONS AS TUNNELING OR
400       METALLIC. THEY ANALYSE THE I-V CURVES OF SINGLE CRYSTALS, GRANULAR
400       CERAMICS AND POINT CONTACTS AND CONCLUDE THAT THOSE INTRINSIC
400       JUNCTIONS ARE METALLIC. THEY DISCUSS THE CONSEQUENCES OF THAT
400       CONCLUSION FOR CRITICAL CURRENTS IN THE METALLIC OXIDE
400       SUPERCONDUCTORS.
500       CERAMICS; CRITICAL CURRENTS; GRANULAR MATERIALS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; JOSEPHSON EFFECT; MAGNETISATION; POINT CONTACTS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; TUNNELLING JUNCTIONS; METALLIC
510       JUNCTIONS; MAGNETIZATION; HIGH-T/SUB C/ SUPERCONDUCTORS; INTRINSIC
510       JOSEPHSON NETWORKS; GRAINS; SINGLE CRYSTALS; I-V CURVES; GRANULAR
510       CERAMICS; POINT CONTACTS; CRITICAL CURRENTS; METALLIC OXIDE
510       SUPERCONDUCTORS.

DOCUMENT=            1864
 AUTH     = SAITOVIT
 DT       = 06
 KN       = B40891507382
 LG       = ENGL
 YR       = 88
000       3406966
002       B40891507382
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MOSSBAUER STUDIES OF (LA/SUB 1-X/BA/SUB X/)/SUB 2/CUO/SUB 4/
100       SUPERCONDUCTING OXIDES.
200       SAITOVITCH, E.B.; AZEVEDO, I.S.; SCORZELLI, R.B.; SAITOVITCH, H.; DA
200       CUNHA, S.F.; GUIMARAES, A.P.; SILVA, P.R.; SAMPAIO, L.C.
220       CENTRO BRASILEIRO DE PESQUISAS FISICAS, RIO DE JANEIRO, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.368-72, REF.4
400       SAMPLES WITH CU SUBSTITUTED BY SMALL AMOUNT OF IRON (LESS THAN 1%)
400       WERE PREPARED FOR X=0.15, 0.25 AND 0.35 MIXTURES. DESPITE THE FACT
400       THAT THERE IS ONLY ONE CU SITE IN THE (LA/SUB 1-X/BA/SUB X/)/SUB
400       2/CUO/SUB 4/ COMPOUNDS THE MOSSBAUER SPECTRA AT ROOM TEMPERATURE
400       INDICATED THE PRESENCE OF TWO QUADRUPOLE DOUBLETS WHOSE BEHAVIOUR
400       WERE FOLLOWED IN DIFFERENT STEPS OF SAMPLES PREPARATION. THEY ARE
400       MOSTLY CHARACTERISTIC OF FE/SUP +3/ AND ONE OF THEM MAY BE DUE TO THE
400       PRESENCE OF OXYGEN OR LANTHANUM VACANCIES. THE EXISTENCE OF MAGNETIC
400       ORDERING IS INVESTIGATED BY /SUP 57/FE MOSSBAUER MEASUREMENTS AT 4.2
400       K FOR SAMPLES WITH 0.5% FE.
500       BARIUM COMPOUNDS; CRYSTAL HYPERFINE FIELD INTERACTIONS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MOSSBAUER
500       EFFECT; VACANCIES (CRYSTAL).
510       HIGH TEMPERATURE SUPERCONDUCTOR; CU SITE; MOSSBAUER SPECTRA; ROOM
510       TEMPERATURE; QUADRUPOLE DOUBLETS; VACANCIES; MAGNETIC ORDERING; 4.2
510       K; 300 K; (LA/SUB 1-X/BA/SUB X/)/SUB 2/CUO/SUB 4/ SUPERCONDUCTING
510       OXIDES; LA/SUB 2-X/BA/SUB X/CU/SUB 1-Y/FE/SUB Y/O/SUB 4/.
550       LABACUFEO4/SS BA/SS CU/SS FE/SS LA/SS O4/SS O/SS; LABACUO4/SS BA/SS
550       CU/SS LA/SS O4/SS O/SS.
560       TEMPERATURE 4.2 E+00 K; TEMPERATURE 3.0 E+02 K.

DOCUMENT=            1865
 AUTH     = SARAGOVI
 DT       = 06
 KN       = B40891507383
 LG       = ENGL
 YR       = 88
000       3406967
002       B40891507383
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MOSSBAUER STUDY OF OXYGENATED AND DEOXYGENATED YBA/SUB 2/(CU/SUB
100       1-X/FE/SUB X/)/SUB 3/O/SUB 7+Y/ FOR DIFFERENT X VALUES.
200       SARAGOVI-BADLER, C.; LABENSKI DE KANTER, F.
220       DEPT. DE FISICA, COMISION NACIONAL DE ENERGIA ATOMICA, BUENOS AIRES,
220       ARGENTINA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.373-6, REF.7
400       THE AUTHORS REPORT A MOSSBAUER STUDY OF YBA/SUB 2/(CU/SUB 1-X/FE/SUB
400       X/)/SUB 3/O/SUB 7+Y/ FOR 0.1<OR=X 10% AND FOR DIFFERENT Y VALUES. THE
400       OXYGENATED SERIES WHICH CORRESPOND TO THE HIGHER VALUES OF Y, WERE
400       PREPARED UNDER AN OXYGEN FLOW AND THE DEOXYGENATED ONE WAS OBTAINED
400       FROM THE PREVIOUS ONE. SPECTRA ARE FITTED WITH THREE DOUBLETS WITH
400       DIFFERENT RELATIVE INTENSITIES. THE MEASURED QS VALUES, COMPARED WITH
400       THOSE FROM THEORETICAL CALCULATIONS ARE USED TO ASSIGN DIFFERENT
400       OXYGEN ENVIRONMENTS OF FE IONS. THE BEHAVIOUR OF THE DOUBLET
400       INTENSITIES AND THEIR RELATIONSHIP WITH CHANGES IN THE
400       SUPERCONDUCTING TRANSITION AS WELL AS THE STRUCTURE MODIFICATIONS ARE
400       DISCUSSED.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       CRYSTAL HYPERFINE FIELD INTERACTIONS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MOSSBAUER EFFECT; STOICHIOMETRY; SUPERCONDUCTING
500       TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; DEOXYGENATED SAMPLES; O CONTENT
510       DEPENDENCE; MOSSBAUER STUDY; OXYGENATED SERIES; THREE DOUBLETS;
510       RELATIVE INTENSITIES; QS VALUES; SUPERCONDUCTING TRANSITION;
510       STRUCTURE MODIFICATIONS; YBA/SUB 2/(CU/SUB 1-X/FE/SUB X/)/SUB 3/O/SUB
510       7+Y/.
550       YBA2CUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS.

DOCUMENT=            1866
 AUTH     = SAITOVIT
 DT       = 06
 KN       = B40891507384
 LG       = ENGL
 YR       = 88
000       3406968
002       B40891507384
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ANGULAR CORRELATION STUDY OF HYPERFINE INTERACTIONS IN YBA/SUB
100       2/CU/SUB 3/O/SUB Y/.
200       SAITOVITCH, H.; SILVA, P.R.J.; SAITOVITCH, E.B.; AZEVEDO, I.S.;
200       SCORZELLI, R.B.; CUNHA, S.F.; GUIMARAES, A.P.; SAMPAIO, L.C. /
200       MARTINEZ, J.A.
220       CENTRO BRASILEIRO DE PESQUISAS FISICAS, RIO DE JANEIRO, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.377-80, REF.4
400       THE AUTHORS HAVE INVESTIGATED BY PAC, IN ITS TIME DIFFERENTIAL MODE,
400       ABOVE AND BELOW T/SUB C/, IN OXYGENATED AS WELL AS ARGONIZED SAMPLES,
400       THE ELECTRIC FIELD GRADIENTS (EFG) AT THE SITE OF DILUTE CD/SUP 111/
400       IMPURITIES ( APPROXIMATELY 10/SUP -5/ AT.%) IN Y-BA-CU-O.
500       BARIUM COMPOUNDS; CADMIUM; CRYSTAL HYPERFINE FIELD INTERACTIONS;
500       GAMMA-RAY SPECTRA OF LIQUIDS AND SOLIDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; OXYGENATED SAMPLES; PERTURBED
510       ANGULAR CORRELATIONS; ARGONIZED SAMPLES; HYPERFINE INTERACTIONS; PAC;
510       TIME DIFFERENTIAL MODE; ELECTRIC FIELD GRADIENTS; EFG; DILUTE CD/SUP
510       111/ IMPURITIES; YBA/SUB 2/CU/SUB 3/O/SUB Y/:CD.
550       YBA2CU3O:CD/SS YBA2CU3O/SS BA2/SS CU3/SS BA/SS CD/SS CU/SS O/SS Y/SS
550       CD/EL CD/DOP.

DOCUMENT=            1867
 AUTH     = CONTINEN
 DT       = 06
 KN       = B40891507385
 LG       = ENGL
 YR       = 88
000       3406969
002       B40891507385
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC RESONANCE AND RESISTIVITY IN LA/SUB 1.8/SR/SUB 0.2/CU/SUB
100       1-X/M/SUB X/O/SUB 4- DELTA / WITH M=FE, MN AND CO.
200       CONTINENTINO, M.A. / ELSCHNER, B.; KRUSCHEL, G.; KEMMLER-SACK, S.
220       UNIV. FEDERAL FLUMINENSE, INST. DE FISICA, NITEROI, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.381-5, REF.8
400       THE AUTHORS STUDY THE ELECTRON SPIN RESONANCE (ESR) AND THE
400       RESISTIVITY OF THE HIGH T/SUB C/ SUPERCONDUCTING CERAMICS LA/SUB
400       1.8/SR/SUB 0.2/CU/SUB 1-X/M/SUB X/O/SUB 4- DELTA / DOPED WITH THE
400       TRANSITION METALS M=FE, MN AND CO, FOR DIFFERENT CONCENTRATIONS OF
400       DOPANTS. THE LINEWIDTH, G-VALUES AND THE MAGNETIC SUSCEPTIBILITY ARE
400       OBTAINED IN A WIDE TEMPERATURE RANGE. THE G-VALUES PROVIDE
400       INFORMATION ON THE STATES AND ON THE DIFFERENT NEIGHBOURHOODS OF THE
400       TRANSITION METALS DOPANTS. THE RESISTANCE OF THE SAMPLES ARE MEASURED
400       AND THEIR BEHAVIOR CORRELATED TO THAT OF THE EPR PARAMETERS.
500       CERAMICS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE SEMICONDUCTORS AND
500       INSULATORS; EPR LINE BREADTH; G-FACTOR; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC SUSCEPTIBILITY;
500       PARAMAGNETIC RESONANCE OF IRON GROUP IONS AND IMPURITIES; STRONTIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; DOPANT CONCENTRATION; ELECTRON
510       SPIN RESONANCE; ESR; RESISTIVITY; HIGH T/SUB C/ SUPERCONDUCTING
510       CERAMICS; LINEWIDTH; G-VALUES; MAGNETIC SUSCEPTIBILITY; TRANSITION
510       METALS DOPANTS; EPR PARAMETERS; LA/SUB 1.8/SR/SUB 0.2/CU/SUB
510       1-X/FE/SUB X/O/SUB 4- DELTA /; LA/SUB 1.8/SR/SUB 0.2/CU/SUB
510       1-X/MN/SUB X/O/SUB 4- DELTA /; LA/SUB 1.8/SR/SUB 0.2/CU/SUB
510       1-X/CO/SUB X/O/SUB 4- DELTA /.
550       LA1.8SR0.2CUFEO/SS LA1.8/SS SR0.2/SS CU/SS FE/SS LA/SS SR/SS O/SS;
550       LA1.8SR0.2CUMNO/SS LA1.8/SS SR0.2/SS CU/SS LA/SS MN/SS SR/SS O/SS;
550       LA1.8SR0.2CUCOO/SS LA1.8/SS SR0.2/SS CO/SS CU/SS LA/SS SR/SS O/SS.

DOCUMENT=            1868
 AUTH     = SANJURJO
 DT       = 06
 KN       = B40891507386
 LG       = ENGL
 YR       = 88
000       3406970
002       B40891507386
010       CONFERENCE PAPER; EXPERIMENTAL.
100       RAMAN MEASUREMENTS IN YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /: A CRITICAL
100       REVIEW.
200       SANJURJO, J.A.
220       INST. DE FISICA GLEB WATAGHIN, UNIV. ESTADUAL DE CAMPINAS, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.386-9, REF.17
400       A CRITICAL COMPARISON OF SEVERAL PAPERS PUBLISHED ON RAMAN
400       MEASUREMENTS OF YB/SUB 2/CU/SUB 3/O/SUB 7- DELTA / TYPE-COMPOUNDS IS
400       PRESENTED. THIS WORK WAS MOTIVATED BY THE CONTRADICTORY RESULTS
400       REPORTED BY DIFFERENT AUTHORS. THE AUTHOR'S ANALYSIS YIELDS THE
400       FOLLOWING CONCLUSIONS: (A) AMONG THE DIFFERENT FEATURES THAT APPEAR
400       IN THE RAMAN SPECTRA ONLY THOSE AT ABOUT 150, 335, 435 AND 500 CM/SUP
400       -1/ ARE 'TRUE' RAMAN MODES OF THE SUPERCONDUCTING YBA/SUB 2/CU/SUB
400       3/O/SUB 7- DELTA / MATERIAL; (B) ALL THESE MODES BELONG TO THE AG
400       SYMMETRY REPRESENTATION; (C) OTHER FEATURES THAT APPEAR ONLY IN
400       CERAMIC SAMPLES CAN BE IDENTIFIED AS RAMAN MODES OF 'IMPURITY' PHASES
400       LIKE, AMONG OTHERS, Y/SUB 2/BACUO/SUB 5/, CU/SUB 2/O AND BACUO/SUB
400       2/. THE VARIATION IN THE RAMAN FREQUENCIES WITH OXYGEN CONTENT IS
400       ALSO ANALYZED.
500       BARIUM COMPOUNDS; CERAMICS; HIGH-TEMPERATURE SUPERCONDUCTORS; RAMAN
500       SPECTRA OF INORGANIC SOLIDS; STOICHIOMETRY; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; IMPURITY PHASES; O CONTENT
510       DEPENDENCE; RAMAN MEASUREMENTS; RAMAN SPECTRA; RAMAN MODES; AG
510       SYMMETRY; CERAMIC SAMPLES; RAMAN FREQUENCIES; YBA/SUB 2/CU/SUB
510       3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1869
 AUTH     = MASSA
 DT       = 06
 KN       = B40891507387
 LG       = ENGL
 YR       = 88
000       3406971
002       B40891507387
010       CONFERENCE PAPER; EXPERIMENTAL.
100       INFRARED AND RAMAN SPECTRA OF SUPERCONDUCTING BI/SUB 4/(CA,SR)/SUB
100       6/CU/SUB 4/O/SUB 16+X/.
200       MASSA, N.E.; GUIDA, J.; PIRO, O.E.; AYMONINO, P.J. / CASTELLANO,
200       E.E.; BASSO, H.C.; GALLO, J.N.H.; MARTIN, A.A.; ANDREETA, J.P.
220       DEPT. DE FISICA Y DE QUIMICA, UNIV. NACIONAL DE LA PLATA, ARGENTINA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.390-2, REF.6
400       THE AUTHORS PRESENT TEMPERATURE DEPENDENT INFRARED AND RAMAN SPECTRA
400       OF BI/SUB 4/(CA,SR)/SUB 6/CU/SUB 4/O/SUB 16+X/. THEY FIND PHONON
400       FEATURES SIMILAR TO THE ONES IN OTHER HIGH T/SUB C/ SUPERCONDUCTORS.
400       IN CONTRAST WITH INFRARED RESULTS BY POPOVIC ET AL. (SOL. STATE
400       COMMUN., TO BE PUBLISHED) IN BI/SUB 2/(CA/SUB X/SR/SUB 1-X/)CUO/SUB
400       6+X//SUP -1/, THEY DO NOT OBSERVE THE MODE AT 490 CM/SUP -1/ THAT
400       SOFTENS, THEY ALSO DISCUSS THE ELECTRONIC RESPONSE OF THE SYSTEM TO
400       THE 5145 A LASER LINE.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; INFRARED SPECTRA OF INORGANIC SOLIDS; RAMAN SPECTRA
500       OF INORGANIC SOLIDS; SOFT MODES; STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; SOFT MODE; IR SPECTRA;
510       TEMPERATURE DEPENDENCE; RAMAN SPECTRA; PHONON FEATURES; ELECTRONIC
510       RESPONSE; BI/SUB 2/(CA/SUB X/SR/SUB 1-X/)CUO/SUB 6+X//SUP -1/; BI/SUB
510       4/(CASR)/SUB 6/CU/SUB 4/O/SUB 16+X/.
550       BI4CASRCU4O/SS BI4/SS CU4/SS BI/SS CA/SS CU/SS SR/SS O/SS;
550       BI2CASRCUO/SS BI2/SS BI/SS CA/SS CU/SS SR/SS O/SS.

DOCUMENT=            1870
 AUTH     = LUZURIAG
 DT       = 06
 KN       = B40891507388
 LG       = ENGL
 YR       = 88
000       3406972
002       B40891507388
010       CONFERENCE PAPER; EXPERIMENTAL.
100       COMPARISON OF THE MAGNETIZATION OF LASRCUO MEASURED BY A VIBRATING
100       REED AND BY A SQUID.
200       LUZURIAGA, J.; CIVALE, L.; DE LA CRUZ, F.; RODRIGUEZ, E.
220       CENTRO ATOMICO BARILOCHE-INST. BALSEIRO, ARGENTINA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.393-6, REF.7
400       THE MAGNETIZATION STATE OF LASRCUO IS STUDIED BY TWO DIFFERENT
400       TECHNIQUES. USING A VIBRATING REED MADE OF THE MATERIAL MOVING IN A
400       MAGNETIC FIELD PARALLEL TO THE LONG FACE OF THE REED, A CHANGE OF
400       REGIME IS SEEN IN THE ATTENUATION, WHILE NO EXTRA DISSIPATION DUE TO
400       THE FIELD IS SEEN AT LOW FIELDS. THE RESULTS ARE CORRELATED WITH THE
400       BEHAVIOUR SEEN IN A SQUID MAGNETOMETER AND A GRANULAR PICTURE IN
400       WHICH THE ORDER PARAMETER IS ZERO IN SOME REGIONS OF THE SAMPLE
400       APPEARS TO BE THE MODEL THAT CAN BEST DESCRIBE THE RESULTS.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC
500       VARIABLES MEASUREMENT; MAGNETISATION; MAGNETOMETERS; SQUIDS;
500       STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; MAGNETIZATION; VIBRATING REED;
510       SQUID MAGNETOMETER; ORDER PARAMETER; LASRCUO.
550       LASRCUO/SS CU/SS LA/SS SR/SS O/SS.

DOCUMENT=            1871
 AUTH     = SAGREDO
 DT       = 06
 KN       = B40891507389
 LG       = ENGL
 YR       = 88
000       3406973
002       B40891507389
010       CONFERENCE PAPER; EXPERIMENTAL.
100       MAGNETIC CHARACTERISTIC OF Y-BA-CU-O COMPOUNDS.
200       SAGREDO, V.; CHOURIO, M.
220       DEPT. OF PHYS., LOS ANDES UNIV., MERIDA, VENEZUELA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.397-401, REF.12
400       THE AUTHORS PRESENT THE RESULTS OF MAGNETIC SUSCEPTIBILITY
400       MEASUREMENTS FOR FOUR SAMPLES OF YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/
400       PREPARED IN DIFFERENT CONDITIONS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       SUSCEPTIBILITY; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; PREPARATION CONDITIONS
510       DEPENDENCE; MAGNETIC SUSCEPTIBILITY; YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1872
 AUTH     = SANCHEZ
 DT       = 06
 KN       = B40891507390
 LG       = ENGL
 YR       = 88
000       3406974
002       B40891507390
010       CONFERENCE PAPER; THEORETICAL.
100       STRUCTURAL TRANSITION AND OXYGEN ORDERING IN YBA/SUB 2/CU/SUB 3/O/SUB
100       6+X/.
200       SANCHEZ, J.M. / MEJIA-LIRA, F.; MORAN-LOPEZ, J.L.
220       HENRY KRUMB SCH. OF MINES, COLUMBIA UNIV., NEW YORK, NY, USA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.402-5, REF.5
400       THE STRUCTURAL TRANSITION OBSERVED IN THE YBA/SUB 2/CU/SUB 3/O/SUB
400       6+X/ IS MODELED BY MEANS OF THE ORDERING OF OXYGEN ATOMS AND
400       VACANCIES ON THE BASAL PLANE OF THE TETRAGONAL AND/OR THE
400       ORTHORHOMBIC STRUCTURES. THE CORRESPONDING PHASE DIAGRAM AND THE
400       TEMPERATURE DEPENDENCE OF THE OXYGEN ORDER PARAMETER IS CALCULATED
400       USING THE CLUSTER VARIATION METHOD IN A FOUR POINT CLUSTER
400       APPROXIMATION. MOST OF THE EXPERIMENTAL OBSERVATIONS ARE REPRODUCED
400       WELL BY A SIMPLE MODEL INCLUDING ONLY NEAREST NEIGHBOR REPULSION
400       BETWEEN OXYGENS. IN PARTICULAR, THE AUTHORS EMPHASIZE THE IMPORTANCE
400       OF A PERCOLATION LIMIT IN THE ORDER-DISORDER TRANSITION.
500       BARIUM COMPOUNDS; CLUSTER APPROXIMATION; CRYSTAL ATOMIC STRUCTURE OF
500       INORGANIC COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; ORDER-DISORDER
500       TRANSFORMATIONS; PHASE DIAGRAMS; VACANCIES (CRYSTAL); YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O ORDERING; VACANCY ORDERING;
510       TETRAGONAL STRUCTURE; STRUCTURAL TRANSITION; BASAL PLANE;
510       ORTHORHOMBIC STRUCTURES; PHASE DIAGRAM; TEMPERATURE DEPENDENCE;
510       CLUSTER VARIATION METHOD; FOUR POINT CLUSTER APPROXIMATION; NEAREST
510       NEIGHBOR REPULSION; PERCOLATION LIMIT; ORDER-DISORDER TRANSITION;
510       YBA/SUB 2/CU/SUB 3/O/SUB 6+X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1873
 AUTH     = ALIGIA
 DT       = 06
 KN       = B40891507391
 LG       = ENGL
 YR       = 88
000       3406975
002       B40891507391
010       CONFERENCE PAPER; THEORETICAL.
100       ORDERING OF O ATOMS IN YBA/SUB 2/CU/SUB 3/O/SUB 7+X/.
200       ALIGIA, A.A.; ROJO, A.G.; ALASCIO, B.R.
220       CENTRO ATOMICO BARILOCHE, ARGENTINA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.406-9, REF.6
400       OXYGEN VACANCIES IN YBA/SUB 2/CU/SUB 3/O/SUB 7+X/(-1<OR=X<OR=1) FALL
400       IN ONE OF THE TWO TYPES OF CU-O PLANES PERPENDICULAR TO THE C AXIS OF
400       THE STRUCTURE. ASSUMING THAT THE RELEVANT INTERACTION OF THE OXYGEN
400       IONS IS A SCREENED COULOMB REPULSION BETWEEN THOSE CONTAINED IN THE
400       SAME PLANE, THE AUTHORS DETERMINE THE MINIMUM ENERGY ORDER FOR EACH
400       COMPOSITION. FOR SMALL MOD X MOD , X<0 THEY FIND LONG RANGE ORDER OF
400       THE VACANCIES. FOR MOD X MOD =1/2 ORDER PERSISTS ALTHOUGH IT MAY NOT
400       BE COMPLETELY APPARENT IN X-RAY OR NEUTRON DIFFRACTION PATTERNS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; LONG-RANGE ORDER;
500       ORDER-DISORDER TRANSFORMATIONS; VACANCIES (CRYSTAL); YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O VACANCY ORDERING; CU-O PLANES;
510       SCREENED COULOMB REPULSION; MINIMUM ENERGY ORDER; LONG RANGE ORDER;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7+X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1874
 AUTH     = JULIEN
 DT       = 06
 KN       = B40891507392
 LG       = ENGL
 YR       = 88
000       3406976
002       B40891507392
010       CONFERENCE PAPER; THEORETICAL.
100       ELECTRONIC STRUCTURE OF PEROVSKITE TYPE COMPOUNDS.
200       JULIEN, J.P.; MAYOU, D.; CYROT-LACKMANN, F.
220       LAB. D'ETUDES DES PROPRIETES ELECTRON. DES SOLIDES, UNIV. JOSEPH
220       FOURIER, GRENOBLE, FRANCE
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.410-15, REF.6
400       ELECTRONIC STRUCTURE OF PEROVSKITE TYPE COMPOUNDS, SUCH AS SRTIO/SUB
400       3/ AND LA/SUB 2/CUO/SUB 4/ IS CALCULATED WITHIN A TIGHT BINDING
400       SCHEME AND A RECURSION METHOD. HYBRIDIZATION EFFECTS BETWEEN D TI OR
400       CU ORBITALS AND P OXYGEN ORBITALS ARE INCLUDED. THE ALTERNATING
400       STRUCTURE OF THE LATTICES WHICH DO NOT COUPLE DIRECTLY TI OR CU
400       ALLOWS A TRANSFORMATION OF THE REAL LATTICES INTO EFFECTIVE LATTICES
400       WHERE THE OXYGEN ATOMS ARE REMOVED. THE DOS OF THE ORIGINAL LATTICE
400       CAN BE DEDUCED FROM THAT OF THE EFFECTIVE ONE. THIS PERMITS A
400       DETAILED STUDY OF THE SINGULARITIES OF THE DOS AND OF THE DIFFERENT
400       CONTRIBUTION OF EACH OF THE ORBITALS ON THE DIFFERENT ATOMIC SITES.
400       FOR LA/SUB 2/CUO/SUB 4/, THE SPLITTING BETWEEN THE 3Z/SUP 2/-R/SUP 2/
400       AND X/SUP 2/-Y/SUP 2/ BANDS ASSOCIATED WITH THE TETRAGONAL
400       DISTORTION, IS MAINLY A CONSEQUENCE OF THE COVALENCY BETWEEN COPPER
400       AND OXYGEN.
500       BAND STRUCTURE OF CRYSTALLINE SEMICONDUCTORS AND INSULATORS;
500       ELECTRONIC DENSITY OF STATES; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       LANTHANUM COMPOUNDS; RECURSION METHOD; STRONTIUM COMPOUNDS;
500       TIGHT-BINDING CALCULATIONS.
510       DENSITY OF STATES; ELECTRONIC STRUCTURE; HYBRIDISATION EFFECTS; BAND
510       SPLITTING; HIGH TEMPERATURE SUPERCONDUCTORS; PEROVSKITE TYPE
510       COMPOUNDS; TIGHT BINDING SCHEME; RECURSION METHOD; ALTERNATING
510       STRUCTURE; REAL LATTICES; EFFECTIVE LATTICES; SINGULARITIES;
510       TETRAGONAL DISTORTION; COVALENCY; SRTIO/SUB 3/; LA/SUB 2/CUO/SUB 4/.
550       SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS; LA2CUO4/SS LA2/SS CU/SS
550       LA/SS O4/SS O/SS.

DOCUMENT=            1875
 AUTH     = CHAVES
 DT       = 06
 KN       = B40891507393
 LG       = ENGL
 YR       = 88
000       3406977
002       B40891507393
010       CONFERENCE PAPER; THEORETICAL.
100       QUANTUM FLUCTUATIONS IN THE HUBBARD CHAIN.
200       CHAVES, C.M.
220       DEPT. OF PHYS., PONTIFICIA UNIV. CATOLICA, RIO DE JANEIRO, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.416-20, REF.3
400       THE AUTHOR SHOWS THAT THE ONE-DIMENSIONAL HUBBARD MODEL IS EQUIVALENT
400       TO A TWO-DIMENSIONAL MINKOVSKIAN NONLINEAR SIGMA -MODEL. THE RESULT
400       HOLDS WHEN THE FLUCTUATIONS IN THE MAGNITUDE OF THE FIELD ASSOCIATED
400       TO THE SPIN ARE FROZEN. THE SAME PROCEDURE APPLIED TO THE
400       TWO-DIMENSIONAL CLASSICAL HEISENBERG CHAIN GIVES THE EUCLIDEAN
400       VERSION OF THE NONLINEAR SIGMA -MODEL.
500       HUBBARD MODEL.
510       QUANTUM FLUCTUATIONS; ONE-DIMENSIONAL HUBBARD MODEL; TWO-DIMENSIONAL
510       MINKOVSKIAN NONLINEAR SIGMA -MODEL; TWO-DIMENSIONAL CLASSICAL
510       HEISENBERG CHAIN; EUCLIDEAN VERSION.

DOCUMENT=            1876
 AUTH     = CASTILLO
 DT       = 06
 KN       = B40891507394
 LG       = ENGL
 YR       = 88
000       3406978
002       B40891507394
010       CONFERENCE PAPER; THEORETICAL.
100       EXCITONIC MECHANISM FOR ELECTRON PAIRING: A MANY BODY CALCULATION.
200       CASTILLO, H. / BALSEIRO, C.A.; ALASCIO, B.; CEVA, H.
220       DEPT. DE FISICA, COMISION NACIONAL DE ENERGIA ATOMICA, BUENOS AIRES,
220       ARGENTINA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.421-4, REF.8
400       THE AUTHORS APPLY MANY-BODY TECHNIQUES TO THE STUDY OF A SPINLESS
400       INTERACTING ELECTRON MODEL OF CU-O PLANES IN HIGH T/SUB C/
400       SUPERCONDUCTORS (E. GAGLIANO, A. ROJO, C. BALSEIRO, B. ALASCIO, SOLID
400       STATE COMMUN. 64, 901 (1987)). THEY CALCULATE POLARIZATION
400       PROPAGATORS AND EFFECTIVE INTERACTIONS. IN SOME CASES THEY FIND
400       ATTRACTIVE INTERACTIONS THAT COULD GENERATE A MECHANISM FOR PAIRING.
500       COOPER PAIRS; EXCITONS; HIGH-TEMPERATURE SUPERCONDUCTORS.
510       EXCITONIC MECHANISM; HIGH TEMPERATURE SUPERCONDUCTIVITY; ELECTRON
510       PAIRING; MANY-BODY TECHNIQUES; SPINLESS INTERACTING ELECTRON MODEL;
510       CU-O PLANES; HIGH T/SUB C/ SUPERCONDUCTORS; POLARIZATION PROPAGATORS;
510       EFFECTIVE INTERACTIONS; ATTRACTIVE INTERACTIONS.
550       CU/SS O/SS.

DOCUMENT=            1877
 AUTH     = FOGLIO
 DT       = 06
 KN       = B40891507395
 LG       = ENGL
 YR       = 88
000       3406979
002       B40891507395
010       CONFERENCE PAPER; THEORETICAL.
100       ANISOTROPIC SUPERCONDUCTIVITY IN HIGH T/SUB C/ CERAMICS.
200       FOGLIO, M.E. / BALSEIRO, C.A.
220       UNIV. ESTADUAL DE CAMPINAS, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.425-8, REF.4
400       A PAIRING MECHANISM IN WHICH AN ATTRACTIVE INTERSITE INTERACTION
400       ARISES FROM THE HIGHLY CORRELATED ELECTRONIC STRUCTURE OF THE
400       SUPERCONDUCTING CERAMICS HAS BEEN PROPOSED RECENTLY BY BALSEIRO ET
400       AL. (INF. TEC. CNEA-CAB 88/003). IN A PREVIOUS WORK (BALSEIRO AND
400       FOGLIO, INF. TEC. CNEA-CAB 88/009) THE SUPERCONDUCTING STATE
400       RESULTING FROM SUCH INTERACTIONS IN THE CU-O PLANES OF SRCUO AND
400       YBACUO WAS ANALYZED. HERE THE LATTER WORK IS EXTENDED TO INCLUDE
400       INTERPLANE INTERACTIONS. THE CRITICAL TEMPERATURE IS OBTAINED AS A
400       FUNCTION OF ELECTRON CONCENTRATION AND ATTRACTIVE COUPLING FROM A
400       PAIR OF COUPLED EQUATIONS CONNECTING INTERPLANE AND INTRAPLANE ORDER
400       PARAMETERS.
500       CERAMICS; COOPER PAIRS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SUPERCONDUCTING TRANSITION TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; INTERPLANE ORDER PARAMETERS;
510       ANISOTROPIC SUPERCONDUCTIVITY; HIGH T/SUB C/ CERAMICS; PAIRING
510       MECHANISM; ATTRACTIVE INTERSITE INTERACTION; HIGHLY CORRELATED
510       ELECTRONIC STRUCTURE; SUPERCONDUCTING CERAMICS; CU-O PLANES;
510       INTERPLANE INTERACTIONS; CRITICAL TEMPERATURE; ELECTRON
510       CONCENTRATION; ATTRACTIVE COUPLING; COUPLED EQUATIONS; INTRAPLANE
510       ORDER PARAMETERS; SRCUO; YBACUO.
550       SRCUO/SS CU/SS SR/SS O/SS; YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1878
 AUTH     = LAGOS
 DT       = 06
 KN       = B40891507396
 LG       = ENGL
 YR       = 88
000       3406980
002       B40891507396
010       CONFERENCE PAPER; THEORETICAL.
100       NEW ANALYTIC APPROACH TO MOTT INSULATORS.
200       LAGOS, M.; KIWI, M.
220       FAC. DE FISICA, UNIV. CATOLICA DE CHILE, SANTIAGO, CHILE
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.429-32, REF.8
400       THE AUTHORS HAVE INTRODUCED A NEW ANALYTIC APPROACH TO TREAT THE
400       HALF-FILLED HUBBARD MODEL WHICH LEADS TO A COMPLETE, THOUGH
400       APPROXIMATE, SOLUTION. MORE IMPORTANTLY, THEY HAVE IDENTIFIED THE
400       EXCITATIONS WHICH PLAY THE KEY ROLE IN THE HIGHLY CORRELATED REGIME.
400       THE THEORY IS QUITE SIMPLE AND TRANSPARENT, AND THE RESULTING
400       EIGENVECTORS ALLOW ONE TO CALCULATE MATRIX ELEMENTS ANALYTICALLY. AN
400       INSIGHT INTO THE STRUCTURE OF THE GROUND STATE AND SOME OF ITS
400       PROPERTIES ARE OBTAINED.
500       HUBBARD MODEL; LOCALISED ELECTRON STATES.
510       MOTT INSULATORS; NEW ANALYTIC APPROACH; HALF-FILLED HUBBARD MODEL;
510       EXCITATIONS; HIGHLY CORRELATED REGIME; EIGENVECTORS; MATRIX ELEMENTS;
510       GROUND STATE.

DOCUMENT=            1879
 AUTH     = BELLIDO
 DT       = 06
 KN       = B40891507397
 LG       = ENGL
 YR       = 88
000       3406981
002       B40891507397
010       CONFERENCE PAPER; EXPERIMENTAL.
100       PREPARATION OF HIGH T/SUB C/ SUPERCONDUCTORS: Y/AL-BA-CU-O SYSTEMS.
200       BELLIDO, A.V.; AULER, L.T.; DA SILVA, B.F.
220       INST. DE ENGENHARIA NUCL., COMISSAO NACIONAL DE ENERGIA NUCL., RIO DE
220       JANEIRO, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.433-6, REF.8
400       SEVERAL CERAMICS OF THE GENERAL FORMULA M/SUP III/BA/SUB 2/CU/SUB
400       3/O/SUB 7-Y/ WERE PREPARED, UNDER THE SAME THERMAL TREATMENT, FROM
400       MIXTURES OF CONSTANT BA AND CU COMPOUNDS AND DIFFERENT Y COMPOUNDS.
400       IN SOME EXPERIMENTS, Y WAS PARTIAL OR TOTALLY SUBSTITUTED FOR AL. ALL
400       THE CERAMICS WITH THE ONLY EXCEPTION OF THAT STARTING FROM AL/SUB
400       2/O/SUB 3/ SHOWED MEISSNER EFFECT WITH A T/SUB C/ HIGHER THAN THE
400       LIQUID NITROGEN TEMPERATURE.
500       ALUMINIUM COMPOUNDS; BARIUM COMPOUNDS; CERAMICS; HEAT TREATMENT;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MATERIALS PREPARATION; MEISSNER
500       EFFECT; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; TRANSITION TEMPERATURE;
510       PREPARATION METHOD; THERMAL TREATMENT; MIXTURES; CERAMICS; MEISSNER
510       EFFECT; Y/SUB 1-X/AL/SUB X/BA/SUB 2/CU/SUB 3/O/SUB 7-Y/.
550       BA2/SS CU3/SS BA/SS CU/SS O/SS; YALBA2CU3O/SS BA2/SS CU3/SS AL/SS
550       BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1880
 AUTH     = BETANCOU
 DT       = 06
 KN       = B40891507398
 LG       = ENGL
 YR       = 88
000       3406982
002       B40891507398
010       CONFERENCE PAPER; EXPERIMENTAL.
100       PHASE DIAGRAMS OF Y-BA-CU-O AND BI-SR/CA-CU-O COMPOUNDS.
200       BETANCOURT, J.
220       DEPT. DE FISICA, UNIV. NACIONAL DE COLOMBIA, BOGOTA, COLOMBIA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.437-40, REF.5
400       IN THE PHASE DIAGRAM OF THE Y-BA-CU-O SYSTEM (900-1000 DEGREES C) THE
400       AUTHORS HAVE EXPLORED REGIONS FOR COMPATIBILITIES AMONG DIFFERENT
400       COMPOUNDS AND FOR THE EXISTENCE OF SUPERCONDUCTING PHASES OTHER THAN
400       THE 1-2-3. IN THE PHASE DIAGRAM FOR THE BI-SR/CA-CU-O SYSTEM (800-900
400       DEGREES C) ZONES ARE SHOWN, WHERE IT IS POSSIBLE TO OBTAIN
400       SUPERCONDUCTING PHASES.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PHASE DIAGRAMS; STRONTIUM
500       COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; PHASE DIAGRAM; COMPATIBILITIES;
510       SUPERCONDUCTING PHASES; 800 TO 1000 DEGC; Y-BA-CU-O SYSTEM;
510       BI-SR-CA-CU-O SYSTEM.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS; YBACUO/SS BA/SS CU/SS O/SS
550       Y/SS.
560       TEMPERATURE 1.07 E+03 TO 1.27 E+03 K.

DOCUMENT=            1881
 AUTH     = DE
 DT       = 06
 KN       = B40891507399
 LG       = ENGL
 YR       = 88
000       3406983
002       B40891507399
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SUPERCONDUCTIVITY AND OXYGEN KINETICS IN THE HIGH T/SUB C/ OXIDE
100       YBA/SUB 2/CU/SUB 3/O/SUB X/ WHERE 6.30<X<7.00.
200       DE LIMA, O.F.; JARDIM, R.F.; GAMA, S.; TORRIANI, I.
220       INST. DE FISICA, UNIV. ESTADUAL DE CAMPINAS, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.441-4, REF.7
400       DISK-SHAPED SAMPLES OF YBA/SUB 2/CU/SUB 3/O/SUB 7/ WERE INITIALLY
400       PRODUCED THROUGH THE SOLID DIFFUSION METHOD. THESE SAMPLES WERE CUT
400       INTO SEVERAL SMALL BARS, WHICH WERE THEN USED FOR OXYGEN EXTRACTION
400       UNDER VACUUM, IN TEMPERATURES BETWEEN 330 DEGREES C AND 550 DEGREES
400       C. X-RAY ANALYSIS SHOWS A GRADUAL TRANSFORMATION FROM THE VERY PURE
400       SUPERCONDUCTING ORTHORHOMBIC PHASE (X=7.0) TO THE VERY PURE
400       SEMICONDUCTING TETRAGONAL PHASE (X=6.3). THE SUPERCONDUCTING CRITICAL
400       TEMPERATURE (T/SUB C/), DEFINED AT THE MID-POINT OF THE RESISTIVE
400       TRANSITION, SHOWS A WELL DEFINED PLATEAU AROUND 70 K FOR 6.6<X<6.8,
400       THOUGH A VERY SHARP TRANSITION ( DELTA T APPROXIMATELY 1 K) WAS
400       OBSERVED FOR THE PARENT SAMPLE (X=7.0) AT T/SUB C/=93 K. THE KINETICS
400       FOR OXYGEN INTERCALATION AND DESORPTION WAS STUDIED BY MONITORING THE
400       MASS VARIATION OF THE SAMPLE.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; OXIDATION; REACTION KINETICS;
500       REDUCTION (CHEMICAL); SOLID-STATE PHASE TRANSFORMATIONS;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O INTERCALATION; O EXTRACTION
510       UNDER VACUUM; O KINETICS; O CONTENT; O DESORPTION; RESISTIVE
510       TRANSITION MIDPOINT; HIGH T/SUB C/ OXIDE; X-RAY ANALYSIS; GRADUAL
510       TRANSFORMATION; VERY PURE SUPERCONDUCTING ORTHORHOMBIC PHASE; VERY
510       PURE SEMICONDUCTING TETRAGONAL PHASE; SUPERCONDUCTING CRITICAL
510       TEMPERATURE; SHARP TRANSITION; MASS VARIATION; 330 TO 550 DEGC; 70 K;
510       93 K; YBA/SUB 2/CU/SUB 3/O/SUB X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 6.03 E+02 TO 8.23 E+02 K; TEMPERATURE 7.0 E+01 K;
560       TEMPERATURE 9.3 E+01 K.

DOCUMENT=            1882
 AUTH     = RIOS-JAR
 DT       = 06
 KN       = B40891507400
 LG       = ENGL
 YR       = 88
000       3406984
002       B40891507400
010       CONFERENCE PAPER; EXPERIMENTAL.
100       STUDY OF THE INFLUENCE OF FE AND ZN SUBSTITUTING CU IN Y/SUB 1/BA/SUB
100       2/CU/SUB 3/O/SUB Y/.
200       RIOS-JARA, D.; GONZALEZ, G.; VAZQUEZ, C.; ESCUDERO, R.
220       INST. DE INVESTIGACIONES EN MATERIALES, UNIV. NACIONAL AUTONOMA DE
220       MEXICO, MEXICO
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.445-8, REF.6
400       THE AUTHORS COMPARE THE INFLUENCES OF FE AND ZN SUBSTITUTING CU IN
400       THE Y/SUB 1/BA/SUB 2/CU/SUB 3-X/(FE/SUB X/ OR ZN/SUB X/)O/SUB Y/
400       COMPOUNDS. SMALL STRUCTURAL CHANGES WERE FOUND IN ZN SUBSTITUTED
400       COMPOUNDS. FOR FE SUBSTITUTION, AN ORTHORHOMBIC TO TETRAGONAL PHASE
400       TRANSITION WAS OBSERVED AT X APPROXIMATELY=0.07. LOSS OF
400       SUPERCONDUCTIVITY WAS OBTAINED FOR /SUB X/>OR=0.2 AND X>OR=0.29 IN ZN
400       AND FE COMPOUNDS RESPECTIVELY. THEY DISCUSS THE EFFECT OF BOTH TYPES
400       OF IMPURITIES ON T/SUB C/.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SOLID-STATE PHASE
500       TRANSFORMATIONS; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; TRANSITION TEMPERATURE;
510       STRUCTURAL CHANGES; ZN SUBSTITUTED COMPOUNDS; FE SUBSTITUTION;
510       ORTHORHOMBIC TO TETRAGONAL PHASE TRANSITION; YBA/SUB 2/CU/SUB
510       3-X/FE/SUB X/O/SUB Y/; YBA/SUB 2/CU/SUB 3-X/O/SUB Y/.
550       YBA2CUFEO/SS BA2/SS BA/SS CU/SS FE/SS O/SS Y/SS; YBA2CUO/SS BA2/SS
550       BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1883
 AUTH     = D'OVIDIO
 DT       = 06
 KN       = B40891507401
 LG       = ENGL
 YR       = 88
000       3406985
002       B40891507401
010       CONFERENCE PAPER; EXPERIMENTAL.
100       INFLUENCE OF THE USE OF DIFFERENT BARIUM PRECURSORS IN THE
100       PREPARATION OF Y-BA-CU SUPERCONDUCTORS.
200       D'OVIDIO, C.A.; ESPARZA, D.A.; MALACHEVSKY, M.T.; OLIBER, E.
220       CENTRO ATOMICO BARILOCHE, ARGENTINA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.449-53, REF.3
400       THE AUTHORS STUDIED THE INFLUENCE OF DIFFERENT BARIUM PRECURSORS ON
400       THE RESISTIVITY, DENSITY AND THE PRESENCE OF SECONDARY PHASES IN THE
400       CERAMIC SUPERCONDUCTOR YBA/SUB 2/CU/SUB 3/O/SUB 7-X/. THE SAMPLES
400       WERE MADE BY MIXING IN STOICHIOMETRIC PROPORTIONS Y/SUB 2/O/SUB 3/,
400       CUO AND ONE OF THE FOLLOWING BARIUM COMPOUNDS: CO/SUB 3/BA, BAO/SUB
400       2/, BAO, BAC/SUB 2/O/SUB 4/ OR BA(OH)/SUB 2/.8 H/SUB 2/O, AND THEN
400       THEY WERE PROCESSED SIMULTANEOUSLY IN A STANDARD WAY. THEY DISCUSS
400       THE RESULTS OBTAINED FROM RESISTIVITY AND DENSITY MEASUREMENTS, AND
400       X-RAY DIFFRACTOMETRY.
500       BARIUM COMPOUNDS; CERAMICS; DENSITY OF SOLIDS; ELECTRICAL
500       CONDUCTIVITY OF CRYSTALLINE SEMICONDUCTORS AND INSULATORS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MATERIALS PREPARATION; X-RAY
500       DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; BA PRECURSORS EFFECTS;
510       PREPARATION; RESISTIVITY; DENSITY; SECONDARY PHASES; CERAMIC; X-RAY
510       DIFFRACTOMETRY; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1884
 AUTH     = SATTI
 DT       = 06
 KN       = B40891507402
 LG       = ENGL
 YR       = 88
000       3406986
002       B40891507402
010       CONFERENCE PAPER; EXPERIMENTAL.
100       THERMOGRAVIMETRIC EVIDENCE FOR A FIRST-ORDER PHASE TRANSITION IN THE
100       ONE-ATMOSPHERE ISOBAR OF YBA/SUB 2/CU/SUB 3/O/SUB 6+X/.
200       SATTI, P.; PASQUEVICH, D.; CANEIRO, A.; ABRIATA, J.; FAINSTEIN, C.
220       CENTRO ATOMICO BARILOCHE, COMISION NACIONAL DE ENERGIA ATOMICA,
220       ARGENTINA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.454-7, REF.13
400       THE AUTHORS MAKE A DETAILED THERMOGRAVIMETRIC STUDY OF THE P(O/SUB
400       2/)=1 ATM ISOBAR FOR YBA/SUB 2/CU/SUB 3/O/SUB 6+X/ PAYING MORE
400       ATTENTION THAN OTHER WORKS TO OBTAIN THE FINAL STABLE EQUILIBRIUM, IN
400       AN ATTEMPT TO DETECT POSSIBLE STRUCTURES IN THIS ISOBAR WHICH MIGHT
400       REVEAL THE EXISTENCE OF UNDERLYING TWO-PHASE REGIONS.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PHASE EQUILIBRIUM; SOLID-STATE
500       PHASE TRANSFORMATIONS; THERMAL ANALYSIS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O PARTIAL PRESSURE; O CONTENT;
510       FIRST-ORDER PHASE TRANSITION; ONE-ATMOSPHERE ISOBAR;
510       THERMOGRAVIMETRIC STUDY; FINAL STABLE EQUILIBRIUM; STRUCTURES;
510       UNDERLYING TWO-PHASE REGIONS; 1 ATM; YBA/SUB 2/CU/SUB 3/O/SUB 6+X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       PRESSURE 1.0 E+05 PA.

DOCUMENT=            1885
 AUTH     = MOEHLECK
 DT       = 06
 KN       = B40891507403
 LG       = ENGL
 YR       = 88
000       3406987
002       B40891507403
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EFFECTS OF HEAT TREATMENT ON THE SUPERCONDUCTING BI-CA-SR-CU-O
100       COMPOUND.
200       MOEHLECKE, S.; ANDRADE, M.C.
220       INST. DE FISICA, UNIV. ESTADUAL DE CAMPINAS, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.458-61, REF.3
400       SINTERED SAMPLES WITH NOMINAL COMPOSITIONS BI/SUB 2/CA/SUB 0.4/SR/SUB
400       2/CU/SUB 2/O/SUB X/, BI/SUB 2/CA/SUB 1/SR/SUB 2/CU/SUB 2/O/SUB X/ AND
400       BI/SUB 2/CA/SUB 1/SR/SUB 2/CU/SUB 3/O/SUB X/ WERE STUDIED AS A
400       FUNCTION OF HEAT TREATMENT. THESE SAMPLES ARE MULTI-PHASE WITH TWO
400       SUPERCONDUCTING ONSETS, ONE SMALL TRANSITION AROUND 115-125 K AND A
400       LARGE ONE AT 83-98 K. ISOTHERMAL (850 DEGREES C) ANNEALS SHOW AN
400       IMPROVEMENT OF ALMOST 15 K IN THE LOW T/SUB C/ AND THE APPEARANCE OR
400       DISAPPEARANCE WITH ANNEALING TIME OF THE HIGH T/SUB C/, DEPENDING ON
400       SAMPLE COMPOSITION.
500       ANNEALING; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; STRONTIUM COMPOUNDS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; SINTERED SAMPLES; MULTIPHASE
510       SAMPLES; TRANSITION TEMPERATURE; ISOTHERMAL ANNEALS; HEAT TREATMENT;
510       SUPERCONDUCTING ONSETS; ANNEALING TIME; SAMPLE COMPOSITION; 115 TO
510       125 K; 850 DEGC; 83 TO 98 K; BI/SUB 2/CA/SUB 0.4/SR/SUB 2/CU/SUB
510       2/O/SUB X/; BI/SUB 2/CA/SUB 1/SR/SUB 2/CU/SUB 2/O/SUB X/; BI/SUB
510       2/CA/SUB 1/SR/SUB 2/CU/SUB 3/O/SUB X/.
550       BI2CA0.4SR2CU2O/SS CA0.4/SS BI2/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS
550       SR/SS O/SS; BI2CA1SR2CU2O/SS BI2/SS CA1/SS CU2/SS SR2/SS BI/SS CA/SS
550       CU/SS SR/SS O/SS; BI2CA1SR2CU3O/SS BI2/SS CA1/SS CU3/SS SR2/SS BI/SS
550       CA/SS CU/SS SR/SS O/SS.
560       TEMPERATURE 1.15 E+02 TO 1.25 E+02 K; TEMPERATURE 1.12 E+03 K;
560       TEMPERATURE 8.3 E+01 TO 9.8 E+01 K.

DOCUMENT=            1886
 AUTH     = FRIES
 DT       = 06
 KN       = B40891507404
 LG       = ENGL
 YR       = 88
000       3406988
002       B40891507404
010       CONFERENCE PAPER; EXPERIMENTAL.
100       INDIUM SUBSTITUTION IN YBA/SUB 2/CU/SUB 3/O/SUB 7/.
200       FRIES, S.G. / FRAGA, E.R.
220       INST. DE FISICA, UNIV. FEDERAL DO RIO GRANDE DO SUL, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.462-5, REF.5
400       THE AUTHORS STUDY THE YBA/SUB 2/(CU/SUB 1-X/IN/SUB X/)/SUB 3/O/SUB 7/
400       COMPOSITIONS, X=0.01, 0.03 AND 0.05 BY MEANS OF THE TIME DIFFERENTIAL
400       PERTURBED ANGULAR TECHNIQUE (TDPAC). ALL THE SAMPLES ARE STILL
400       SUPERCONDUCTORS AND THE ELECTRIC FIELD GRADIENT MEASUREMENTS SHOWED
400       TWO SITES FOR THE IN ATOMS SUGGESTING THAT THEY OCCUPY THE TWO CU
400       SITES OF THE SUPERCONDUCTOR CERAMIC.
500       BARIUM COMPOUNDS; CRYSTAL HYPERFINE FIELD INTERACTIONS; GAMMA-RAY
500       SPECTRA OF LIQUIDS AND SOLIDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; TIME DIFFERENTIAL PERTURBED
510       ANGULAR TECHNIQUE; TDPAC; ELECTRIC FIELD GRADIENT; TWO CU SITES;
510       CERAMIC; YBA/SUB 2/(CU/SUB 1-X/IN/SUB X/)/SUB 3/O/SUB 7/.
550       YBA2CUINO7/SS BA2/SS BA/SS CU/SS IN/SS O7/SS O/SS Y/SS.

DOCUMENT=            1887
 AUTH     = JARDIM
 DT       = 06
 KN       = B40891507405
 LG       = ENGL
 YR       = 88
000       3406989
002       B40891507405
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SUPERCONDUCTING FRACTION IN THE YBA/SUB 2/(CU/SUB 1-X/MN/SUB X/)/SUB
100       3/O/SUB 7/ COMPOUND.
200       JARDIM, R.F.; GAMA, S.; DE LIMA, O.F.; TORRIANI, I. / PADUAN FILHO,
200       A.; ZACARELLI, C.; BECERRA, C.C.
220       INST. DE FISICA GLEB WATAGHIN, UNIV. ESTADUAL DE CAMPINAS, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.466-9, REF.4
400       THE SUPERCONDUCTING TRANSITION TEMPERATURES OF THE YBA/SUB 2/(CU/SUB
400       1-X/MN/SUB X/)/SUB 3/O/SUB 7/, WITH X=0.0, 0.025, 0.05, 0.075, 0.10,
400       0.15 AND 0.20, HAD BEEN EXPLORED BY AC MAGNETIC SUSCEPTIBILITY
400       MEASUREMENTS. ALL SAMPLES HAD BEEN CHARACTERIZED BY METALLOGRAPHIC
400       AND X-RAY ANALYSIS. SUPERCONDUCTING VOLUME FRACTION OF THE SAMPLES
400       MEASURED AT 10 AND 30 K DECREASES LINEARLY WITH THE MN CONTENT.
400       METALLOGRAPHIC ANALYSIS REVEALED THAT THE AMOUNT OF ADDITIONAL PHASES
400       AND POROSITY OF THE SAMPLES INCREASE WITH THE MN CONTENT.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC
500       SUSCEPTIBILITY; POROSITY; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       X-RAY ANALYSIS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; METALLOGRAPHIC ANALYSIS;
510       SUPERCONDUCTING VOLUME FRACTION; SUPERCONDUCTING TRANSITION
510       TEMPERATURES; AC MAGNETIC SUSCEPTIBILITY; X-RAY ANALYSIS; MN CONTENT;
510       ADDITIONAL PHASES; POROSITY; 10 K; 30 K; YBA/SUB 2/(CU/SUB 1-X/MN/SUB
510       X/)/SUB 3/O/SUB 7/.
550       YBA2CUMNO7/SS BA2/SS BA/SS CU/SS MN/SS O7/SS O/SS Y/SS.
560       TEMPERATURE 1.0 E+01 K; TEMPERATURE 3.0 E+01 K.

DOCUMENT=            1888
 AUTH     = MANGHI
 DT       = 06
 KN       = B40891507406
 LG       = ENGL
 YR       = 88
000       3406990
002       B40891507406
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SINGLE CRYSTAL GROWTH OF LA/SR/CU/O OXIDES BY THE FLUX GROWTH METHOD.
200       MANGHI, E.; POLLA, G.; DE PERAZZO, P.K.; NIEVAS, G.
220       DEPT. DE FISICA, COMISION NACIONAL DE ENERGIA ATOMICA, BUENOS AIRES,
220       ARGENTINA
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.470-5, REF.12
400       LA/SR/CU/O OXIDE SINGLE CRYSTALS WERE GROWN USING A CUO FLUX METHOD.
400       THE STARTING MATERIAL WAS A LA/SUB 2-X/SR/SUB X/CUO/SUB 4//CUO
400       MIXTURE AT 20/80 MOL % RATIO. THREE ATTEMPTS WERE REALIZED VARYING
400       THE STARTING NOMINAL SR CONCENTRATION (X/SUB N/=0.2, 0.4 AND 0.6).
400       THE INFLUENCE OF X/SUB N/, IN NUCLEATION DENSITY, CHEMICAL
400       COMPOSITION, MORPHOLOGY AND SIZE OF CRYSTALS, WERE ANALYZED. X-RAY
400       DIFFRACTION, OPTICAL MICROSCOPY, SEM, AND EDAX WERE USED FOR THE
400       CHARACTERIZATION OF SINGLE CRYSTAL SAMPLES.
500       CRYSTAL GROWTH FROM SOLUTION; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       LANTHANUM COMPOUNDS; SCANNING ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; STRONTIUM COMPOUNDS; X-RAY DIFFRACTION EXAMINATION OF
500       MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; CRYSTAL SIZE; SCANNING ELECTRON
510       MICROSCOPY; ENERGY DISPERSIVE ANALYSIS OF X-RAYS; FLUX GROWTH METHOD;
510       OXIDE SINGLE CRYSTALS; STARTING NOMINAL SR CONCENTRATION; NUCLEATION
510       DENSITY; CHEMICAL COMPOSITION; MORPHOLOGY; X-RAY DIFFRACTION; OPTICAL
510       MICROSCOPY; SEM; EDAX; CHARACTERIZATION; LASRCUO.
550       LASRCUO/SS CU/SS LA/SS SR/SS O/SS.

DOCUMENT=            1889
 AUTH     = FREIRE
 DT       = 06
 KN       = B40891507407
 LG       = ENGL
 YR       = 88
000       3406991
002       B40891507407
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ANALYSIS OF THE COMPOSITION OF SURFACE LAYERS IN HIGH T/SUB C/
100       SUPERCONDUCTING MATERIALS BY THE COMBINATION OF RBS AND NUCLEAR
100       RESONANCE REACTION.
200       FREIRE, F.L., JR.; BARROS LEITE, C.V.; PATNAIK, B.K.; BAPTISTA, G.B.
200       / NAUGLE, D.; PANDEY, R.Q.; KIRQ, W.
220       DEPT. DE FISICA, PONTIFICIA UNIV. CATOLICA DO RIO DE JANEIRO, BRAZIL
300       PROCEEDINGS OF THE I LACHTS. FIRST LATIN-AMERICAN CONFERENCE ON HIGH
300       TEMPERATURE SUPERCONDUCTIVITY.
305       RIO DE JANEIRO, BRAZIL.  4-6 MAY 1988.
310       SINGAPORE
320       NICOLSKY, R.; BARRIO, R.A.; DE LIMA, O.F.; ESCUDERO, R.
330       SINGAPORE: WORLD SCIENTIFIC, 1988. XIV+483P., P.476-80, REF.7
400       SAMPLES OF NOMINAL COMPOSITION YBA/SUB 2/CU/SUB 3/O/SUB DELTA / WERE
400       ANALYZED BY THE /SUP 16/O( ALPHA , ALPHA ) RESONANCE AT 3.045 MEV,
400       COUPLED WITH THE RBS, SO AS TO OBTAIN THE OXYGEN ATOMIC FRACTION AS A
400       FUNCTION OF DEPTH NEAR THE SURFACE REGION. THE ANALYTICAL TECHNIQUE
400       BASED ON THE NUCLEAR RESONANT SCATTERING /SUP 16/O( ALPHA , ALPHA )
400       COMBINED WITH RBS SEEMS TO BE AN APPROPRIATE TOOL TO CHARACTERIZE
400       SUPERCONDUCTING THIN SURFACE LAYERS. THIS IS DUE TO THE HIGH
400       SENSITIVITY FOR OXYGEN AND THE GOOD DEPTH RESOLUTION (100 AA)
400       OBTAINABLE USING THE GIVEN RESONANCE AS A PROBE.
500       BARIUM COMPOUNDS; CHEMICAL ANALYSIS BY NUCLEAR REACTIONS AND
500       SCATTERING; HIGH-TEMPERATURE SUPERCONDUCTORS; RUTHERFORD
500       BACKSCATTERING; SURFACE STRUCTURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; O ATOMIC FRACTION; RUTHERFORD
510       BACKSCATTERING SPECTRA; SURFACE COMPOSITION; DEPTH PROFILING; RBS;
510       NUCLEAR RESONANCE REACTION; ANALYTICAL TECHNIQUE; NUCLEAR RESONANT
510       SCATTERING; SUPERCONDUCTING THIN SURFACE LAYERS; HIGH SENSITIVITY;
510       GOOD DEPTH RESOLUTION; YBA/SUB 2/CU/SUB 3/O/SUB DELTA /.
550       YBA2CU3O/SUR BA2/SUR CU3/SUR BA/SUR CU/SUR O/SUR Y/SUR YBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1890
 AUTH     = ARIE
 DT       = 06
 KN       = B40891600370
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407361
002       B40891600370
010       CONFERENCE PAPER; EXPERIMENTAL.
100       REACTIVE SPUTTERING OF SUPERCONDUCTING THIN FILMS.
200       ARIE, Y.; MATEY, J.R.
220       DAVID SARNOFF RES. CENTER, PRINCETON, NJ, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.2-7, REF.9
350       ISSN 0094-243X, CODEN APCPCS
400       THE AUTHORS REPORT A SIMPLE, VERSATILE METHOD FOR FABRICATION OF
400       SUPERCONDUCTING THIN FILMS OF Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/
400       USING REACTIVE RF SPUTTERING FROM THREE TARGETS IN VACUUM AND A
400       SUBSEQUENT ANNEAL IN OXYGEN. THE STRUCTURE AND COMPOSITION OF THE
400       FILMS WERE VERIFIED USING RUTHERFORD BACKSCATTERING SPECTROSCOPY AND
400       X-RAY DIFFRACTION STUDIES. MEASUREMENTS OF RESISTIVITY AND
400       SUSCEPTIBILITY VS. TEMPERATURE ESTABLISHED THE SUPERCONDUCTING
400       TRANSITION TEMPERATURES FOR THE FILMS. COMPARISON OF THE
400       SUSCEPTIBILITY AND RESISTANCE TRANSITIONS DEMONSTRATES HETEROGENEITY
400       IN THE SUPERCONDUCTING CHARACTER OF THE FILMS.
500       ANNEALING; BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       MAGNETIC SUSCEPTIBILITY; RUTHERFORD BACKSCATTERING; SPUTTER
500       DEPOSITION; SUPERCONDUCTING THIN FILMS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE; X-RAY DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ANNEALING; SUPERCONDUCTING THIN
510       FILMS; FABRICATION; REACTIVE RF SPUTTERING; STRUCTURE; COMPOSITION;
510       RUTHERFORD BACKSCATTERING SPECTROSCOPY; X-RAY DIFFRACTION;
510       RESISTIVITY; SUSCEPTIBILITY; SUPERCONDUCTING TRANSITION TEMPERATURES;
510       HETEROGENEITY; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1891
 AUTH     = LEE
 DT       = 06
 KN       = B40891600371
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407362
002       B40891600371
010       CONFERENCE PAPER; EXPERIMENTAL.
100       PREPARATION AND CHARACTERIZATION OF HIGH T/SUB C/ YBA/SUB 2/CU/SUB
100       3/O/SUB 7-X/ THIN FILMS ON SILICON BY DC MAGNETRON SPUTTERING FROM A
100       STOICHIOMETRIC OXIDE TARGET.
200       LEE, W.Y.; SALEM, J.; LEE, V.Y.; HUANG, T.C.; KARIMI, R.; DELINE, V.;
200       SAVOY, R. / CHUNG, D.W.
220       IBM ALMADEN RES. CENTER, SAN JOSE, CA, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.8-15, REF.16
350       ISSN 0094-243X, CODEN APCPCS
400       THE EFFECTS OF DEPOSITION TEMPERATURE AND O/SUB 2/ PRESSURE DURING
400       COOL DOWN ON THE SUPERCONDUCTING PROPERTIES OF YBA/SUB 2/CU/SUB
400       3/O/SUB 7-X/ THIN FILMS ON SI SUBSTRATES BY DC MAGNETRON SPUTTERING
400       FROM A STOICHIOMETRIC OXIDE TARGETS ARE REPORTED. RESULTS FROM X-RAY
400       DIFFRACTION ANALYSIS INDICATE THAT THE FILMS DEPOSITED AT 400 DEGREES
400       C OR LOWER, AT 650 DEGREES C AND COOLED DOWN IN <4*10/SUP -4/ O/SUB
400       2/, AND AT 650 DEGREES C AND COOLED DOWN IN >0.16 TORR O/SUB 2/ HAVE,
400       RESPECTIVELY, AMORPHOUS, TETRAGONAL, AND ORTHORHOMBIC STRUCTURE.
400       SUPERCONDUCTING ORTHORHOMBIC FILMS WITH A ZERO RESISTANCE T/SUB C/ OF
400       AS HIGH AS 76 K HAVE BEEN THUS PREPARED ON SI DIRECTLY, WITHOUT
400       FURTHER HEAT TREATMENTS. THE DEPOSITION OF THESE FILMS ON SI IS
400       POSSIBLE BECAUSE OF THE MINIMAL FILM-SUBSTRATE INTERACTION AT THE
400       RELATIVELY LOW DEPOSITION TEMPERATURE USED, AS INDICATED BY THE DEPTH
400       PROFILES OBTAINED FOR THESE FILMS USING SECONDARY ION MASS
400       SPECTROMETRY. RESULTS OF CROSS-SECTIONAL TRANSMISSION ELECTRON
400       MICROSCOPIC STUDIES OF SOME OF THESE FILMS WITH DIFFERENT T/SUB C/
400       AND X-RAY PHOTOEMISSION SPECTROSCOPIC STUDIES OF THE AMORPHOUS,
400       TETRAGONAL, AND ORTHORHOMBIC FILMS ARE ALSO REPORTED.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SECONDARY ION
500       MASS SPECTRA; SPUTTER DEPOSITION; SUPERCONDUCTING THIN FILMS;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; TRANSMISSION ELECTRON
500       MICROSCOPE EXAMINATION OF MATERIALS; X-RAY DIFFRACTION EXAMINATION OF
500       MATERIALS; X-RAY PHOTOELECTRON SPECTRA; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; XPS; CROSS SECTIONAL TEM; ZERO
510       RESISTANCE CRITICAL TEMPERATURE; THIN FILMS; STOICHIOMETRIC OXIDE
510       TARGET; DC MAGNETRON SPUTTERING; X-RAY DIFFRACTION; AMORPHOUS;
510       TETRAGONAL; ORTHORHOMBIC; FILM-SUBSTRATE INTERACTION; DEPTH PROFILES;
510       SECONDARY ION MASS SPECTROMETRY; 76 K; 400 TO 650 DEGC; YBA/SUB
510       2/CU/SUB 3/O/SUB 7-X/; SI.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; SI/SUR SI/EL.
560       TEMPERATURE 7.6 E+01 K; TEMPERATURE 6.73 E+02 TO 9.23 E+02 K.

DOCUMENT=            1892
 AUTH     = CLARKE
 DT       = 06
 KN       = B40891600372
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407363
002       B40891600372
010       CONFERENCE PAPER; EXPERIMENTAL.
100       RF BIAS GETTER REACTIVE SPUTTERING OF LA-CU-O.
200       CLARKE, P.J. / GARDNER, B.
220       SPUTTERED FILMS INC., SANTA BARBARA, CA, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.16-25, REF.4
350       ISSN 0094-243X, CODEN APCPCS
400       THE FUNDAMENTAL LA-CU-O SYSTEM CONTAINS ALL THE INGREDIENTS NEEDED TO
400       CONSTRUCT THE NEW HIGH T/SUB C/ SUPERCONDUCTORS AND TO STUDY THE
400       ASSOCIATED PROCESS PROBLEMS. THIS PAPER DESCRIBES THE SPUTTERING FROM
400       A MOSAIC SPUTTER CATHODE FABRICATED FROM TILES OF LA AND CU. THE
400       COMPOSITION OF THE DEPOSITED FILM WAS CHECKED BY PRIMARY X-RAY
400       EMISSION METHODS. AFTER THE PROPER ATOMIC RATIO WAS DETERMINED IT
400       COULD BE TUNED BY OVER AN 11% RANGE BY VARYING A SPUTTERING GAS
400       MIXTURE OF XE AND ZE. AFTER THE PROPER ATOMIC RATIO WAS FORMED O/SUB
400       2/ WAS ADDED TO THE SPUTTERING GAS AND THE ALLEGED NEGATIVE ION
400       EFFECT ASSOCIATED WITH ELEMENTS WITH A LARGE ELECTRONEGATIVITY WAS
400       STUDIED.
500       COPPER COMPOUNDS; LANTHANUM COMPOUNDS; SPUTTER DEPOSITION.
510       HIGH TEMPERATURE SUPERCONDUCTORS; THIN FILMS; RF BIAS GETTER REACTIVE
510       SPUTTERING; MOSAIC SPUTTER CATHODE; COMPOSITION; X-RAY EMISSION;
510       NEGATIVE ION EFFECT; LA-CU-O.
550       LACUO/SS CU/SS LA/SS O/SS.

DOCUMENT=            1893
 AUTH     = DHERE
 DT       = 06
 KN       = B40891600373
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407364
002       B40891600373
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EFFECT OF SUBSTRATE TEMPERATURE AND BIASING ON THE FORMATION OF 110 K
100       BI-SR-CA-CU-O SUPERCONDUCTING SINGLE TARGET SPUTTERED THIN FILMS.
200       DHERE, N.G.; DHERE, R.G. / MORELAND, J.
220       SOLAR ENERGY RES. INST., GOLDEN, CO, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.26-32, REF.8
350       ISSN 0094-243X, CODEN APCPCS
400       PRESENTS A STUDY OF THE EFFECT OF THE SUBSTRATE TEMPERATURE AND
400       BIASING ON THE SUPERCONDUCTING PROPERTIES OF THIN FILMS DEPOSITED BY
400       RF SPUTTERING FROM A SINGLE SPUTTER-GUN TYPE RING TARGET PREPARED BY
400       POWDER PRESSING OF A MIXTURE OF THE OXIDES WITH A NOMINAL METALLIC
400       COMPOSITION BI:SR:CA:CU OF 1.47:2:1.8:3.17. THIN FILMS DEPOSITED ON
400       UNHEATED SUBSTRATES WERE SMOOTH, DARK, HOMOGENEOUS, AMORPHOUS AND
400       INSULATING. FILMS BECAME INCREASINGLY CRYSTALLINE AND THEIR
400       RESISTANCE DIMINISHED WITH AN INCREASE IN SUBSTRATE TEMPERATURES
400       ABOVE 300 DEGREES C AND UP TO 525 DEGREES C; AND AN INCREASE IN
400       SUBSTRATE BIASING UP TO -150 V. DC BIASING PROVED ITS USEFULNESS,
400       EVEN THOUGH IT CAUSED EXPERIMENTAL DIFFICULTIES. ATTEMPTS HAVE BEEN
400       MADE TO REPLACE IT BY RF BIASING. PROBLEMS RELATED TO SIMULTANEOUS
400       SUBSTRATE HEATING AND RF BIASING STILL NEED TO BE RESOLVED. AS
400       DEPOSITED SUPERCONDUCTING FILMS WERE OBTAINED BY EMPLOYING SUBSTRATE
400       HEATING DURING DEPOSITION (500-525 DEGREES C) AND NEGATIVE DC
400       SUBSTRATE BIASING (-150 V). PARTIAL TRANSFORMATION TO THE 110 K PHASE
400       WAS OBSERVED WHEN THE FILMS WERE AIR ANNEALED AT 865-870 DEGREES C
400       (MELTING) FOR 20 MIN, FOLLOWED BY ANNEALING AT 850-855 DEGREES C
400       DURING 5 H AND AT 400 DEGREES C, DURING 6-8 H. X-RAY DIFFRACTION
400       ANALYSIS SHOWED MOSTLY (001) TYPE REFLECTIONS FROM BI/SUB 2/SR/SUB
400       3-X/CA/SUB X/CU/SUB 2/O/SUB 8+Y/ AND SEVERAL REFLECTIONS FROM THE 110
400       K, BI/SUB 2/SR/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB 10+Y/ PHASE FOR WHICH A
400       TETRAGONAL LATTICE WITH A=7.66 A AND C=37.38 A, HAVING 'C' VALUES
400       CONSISTENT WITH VALUES REPORTED IN THE LITERATURE, HAS BEEN PROPOSED.
500       ANNEALING; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SPUTTER DEPOSITION; STRONTIUM COMPOUNDS;
500       SUPERCONDUCTING THIN FILMS; X-RAY DIFFRACTION EXAMINATION OF
500       MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SUBSTRATE TEMPERATURE; SINGLE
510       TARGET; RF SPUTTERING; HOMOGENEOUS; AMORPHOUS; INSULATING;
510       CRYSTALLINE; RESISTANCE; SUBSTRATE BIASING; DC BIASING; RF BIASING;
510       SUPERCONDUCTING FILMS; ANNEALING; X-RAY DIFFRACTION; 110 K; 300 TO
510       525 DEGC; BI-SR-CA-CU-O; BI/SUB 2/SR/SUB 3-X/CA/SUB X/CU/SUB 2/O/SUB
510       8+Y/.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS; BI2SRCACU2O/SS BI2/SS
550       CU2/SS BI/SS CA/SS CU/SS SR/SS O/SS.
560       TEMPERATURE 1.1 E+02 K; TEMPERATURE 5.73 E+02 TO 7.98 E+02 K.

DOCUMENT=            1894
 AUTH     = WEHNER
 DT       = 06
 KN       = B40891600374
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407365
002       B40891600374
010       CONFERENCE PAPER; EXPERIMENTAL.
100       DEPOSITION OF CERAMIC SUPERCONDUCTORS FROM SINGLE SPHERICAL TARGETS.
200       WEHNER, G.K.; KIM, Y.H.; KIM, D.H.; GOLDMAN, A.M.
220       MINNESOTA UNIV., MINNEAPOLIS, MN, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.33-44, REF.22
350       ISSN 0094-243X, CODEN APCPCS
400       IN SPUTTERING FROM A FLAT MULTI-COMPONENT TARGET THE FILM COMPOSITION
400       IS A FUNCTION OF SUBSTRATE LOCATION AND IS USUALLY DIFFERENT FROM
400       THAT OF THE TARGET. THE MAIN REASON FOR THIS IS THAT DIFFERENT ATOMIC
400       SPECIES ARE SPUTTERED WITH DIFFERENT ANGULAR DISTRIBUTIONS. AN
400       ADDITIONAL PROBLEM ARISES WITH NEGATIVE OXYGEN IONS WHICH CAUSE
400       RESPUTTERING FROM SUBSTRATES LOCATED OPPOSITE THE TARGET. THESE
400       COMPLICATIONS DISAPPEAR WHEN THE SPUTTERING IS PERFORMED USING
400       SPHERICAL TARGETS. THE DEPOSIT IS FORMED FROM ATOMS EJECTED IN ALL
400       DIRECTIONS AND THIS, TOGETHER WITH SPHERICAL SYMMETRY, RESULTS IN AN
400       AUTOMATIC INTEGRATION RESULTING IN THE REPLICATIONS OF TARGET
400       COMPOSITION IN THE DEPOSITED FILM. FURTHERMORE THE NEGATIVE OXYGEN
400       IONS WHICH CAUSE RESPUTTERING ARE EJECTED RADIALLY FROM THE TARGET
400       AND DISTRIBUTED OVER THE WHOLE SOLID ANGLE OF THE TARGET.
400       EXPERIMENTAL PROOF OF THIS WAS OBTAINED BY SPUTTERING A SPHERE OF
400       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ IN A HG TRIODE PLASMA. AFTER THE USUAL
400       POST DEPOSITION OXYGEN HEAT TREATMENT A FILM WITH R=0 AT 89 K WAS
400       OBTAINED. RECENT WORK AT BATTELLE NW HAS SHOWN THAT THE HG PLASMA HAD
400       NOTHING TO DO WITH THE FAVORABLE RESULTS. THEY DEMONSTRATED THAT
400       DEPOSITS OBTAINED FROM A 1-2-3 SPHERE USING A XE TRIODE PLASMA WERE
400       POSITION-INDEPENDENT. A PROGRESS REPORT ON SPUTTERING USING SPHERICAL
400       TARGETS INCLUDING RESULTS FROM THE MORE RECENTLY DISCOVERED
400       BI-SR-CA-CU-O SUPERCONDUCTORS ARE PRESENTED.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SPUTTER DEPOSITION; STRONTIUM
500       COMPOUNDS; SUPERCONDUCTING THIN FILMS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; ZERO RESISTANCE TEMPERATURE;
510       CERAMIC SUPERCONDUCTORS; SINGLE SPHERICAL TARGETS; SPUTTERING; FILM
510       COMPOSITION; HEAT TREATMENT; 89 K; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/; HG
510       TRIODE PLASMA; BI-SR-CA-CU-O.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; HG/EL; BISRCACUO/SS
550       BI/SS CA/SS CU/SS SR/SS O/SS.
560       TEMPERATURE 8.9 E+01 K.

DOCUMENT=            1895
 AUTH     = ARENDT
 DT       = 06
 KN       = B40891600375
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407366
002       B40891600375
010       CONFERENCE PAPER; EXPERIMENTAL.
100       DEPOSITION OF 1-2-3 THIN FILMS OVER LARGE AREAS.
200       ARENDT, P.N.; ELLIOTT, N.E.; MUENCHAUSEN, R.E.; NASTASI, M.;
200       ARCHULETA, T.
220       LOS ALAMOS NAT. LAB., NM, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.45-52, REF.8
350       ISSN 0094-243X, CODEN APCPCS
400       THIN FILMS (0.5-2.0 MU MS) OF REBA/SUB 2/CU/SUB 3/O/SUB 7-X/ (WHERE
400       RE=ER,Y) HAVE BEEN DEPOSITED BY MAGNETRON SPUTTERING AND ELECTRON
400       BEAM COEVAPORATION USING RE, CU AND BAF/SUB 2/ STARTING MATERIALS.
400       POST DEPOSITION ANNEALING GIVES FILMS THAT ARE FULLY SUPERCONDUCTING
400       BETWEEN 80-90 K ON SRTIO/SUB 3/ (100) SUBSTRATES, AS MEASURED BY A
400       FOUR POINT PROBE. FILM CRYSTALLINITY AND MORPHOLOGY ARE EXAMINED BY
400       X-RAY DIFFRACTION (XRD) AND SCANNING ELECTRON MICROSCOPY (SEM) AS A
400       FUNCTION OF ANNEALING CONDITIONS. THE LARGE TARGET-SUBSTRATE DISTANCE
400       OF 35 CM EMPLOYED IN THE SPUTTERING SYSTEM ALLOWS FOR STOICHIOMETRIC
400       DEPOSITION TO WITHIN 5% OVER A 7.5 CM RADIUS AS VERIFIED BY
400       RUTHERFORD BACKSCATTERING SPECTROMETRY (RBS). THE SOURCE-SUBSTRATE
400       DISTANCE OF 25 CM EMPLOYED IN THE ELECTRON GUN SYSTEM RESULTS IN
400       STOICHIOMETRIC DEPOSITION WITHIN 5% OVER A SUBSTRATE RADIUS OF 4 CM.
400       IN SEPARATE EXPERIMENTS, YBACUO FILMS, RF MAGNETRON SPUTTERED FROM A
400       1-2-3 OXIDE TARGET, HAVE BEEN DEPOSITED AT VARIOUS PRESSURES AND
400       TARGET-SUBSTRATE DISTANCES WITH THE RESULTING FILM STOICHIOMETRY
400       BEING MEASURED BY RBS. FILMS OF STRONTIUM TITANATE AND PT HAVE ALSO
400       BEEN DEPOSITED IN AN ATTEMPT TO OBTAIN ORIENTED, LARGE ARE SUBSTRATES
400       ONTO WHICH THE 1-2-3 FILMS MAY BE DEPOSITED. RESULTS OF THESE
400       EXPERIMENTS AS A FUNCTION OF DEPOSITION PARAMETERS ARE PRESENTED.
500       ANNEALING; BARIUM COMPOUNDS; ELECTRON BEAM DEPOSITION; ERBIUM
500       COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; RUTHERFORD
500       BACKSCATTERING; SCANNING ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; SPUTTER DEPOSITION; STOICHIOMETRY; SUPERCONDUCTING THIN
500       FILMS; X-RAY DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; THIN FILMS; LARGE AREAS; MAGNETRON
510       SPUTTERING; ELECTRON BEAM COEVAPORATION; ANNEALING; CRYSTALLINITY;
510       MORPHOLOGY; X-RAY DIFFRACTION; SCANNING ELECTRON MICROSCOPY;
510       RUTHERFORD BACKSCATTERING SPECTROMETRY; STOICHIOMETRY; 80 TO 90 K;
510       SRTIO/SUB 3/; PT; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/; ERBA/SUB 2/CU/SUB
510       3/O/SUB 7-X/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; ERBA2CU3O/SS BA2/SS
550       CU3/SS BA/SS CU/SS ER/SS O/SS; SRTIO3/SUR TIO3/SUR O3/SUR SR/SUR
550       TI/SUR O/SUR SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS; PT/EL.
560       TEMPERATURE 8.0 E+01 TO 9.0 E+01 K.

DOCUMENT=            1896
 AUTH     = KREIDER
 DT       = 06
 KN       = B40891600376
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407367
002       B40891600376
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SPUTTERED THIN FILM YBA/SUB 2/CU/SUB 3/O/SUB N/.
200       KREIDER, K.G.; CLINE, J.P.; SHAPIRO, A. / PENA, J.L.; ROJAS, A.;
200       AZAMAR, J.A.; MALDONADO, L.; DEL CASTILLO, L.
220       INST. FOR MATER. SCI. ? ENG. NAT. INST. OF STAND. ? TECHNOL.,
220       GAITHERSBURG, MD, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.53-60, REF.16
350       ISSN 0094-243X, CODEN APCPCS
400       THIS STUDY WAS CARRIED OUT TO DETERMINE THE EFFECT OF SUBSTRATE
400       TEMPERATURE, TARGET TO SUBSTRATE ANGLE, AND THE PARTIAL PRESSURE OF
400       OXYGEN IN THE SPUTTERING ATMOSPHERE ON THE STOICHIOMETRY OF THE
400       DEPOSITION. FILMS WERE DEPOSITED BY A PLANAR MAGNETRON SPUTTERING OF
400       STOICHIOMETRIC 1:2:3 PRESSED AND SINTERED TARGETS ON MGO, ZRO/SUB 2/
400       (Y) AND ZRO/SUB 2/ COATED AL/SUB 2/O/SUB 3/ SUBSTRATES. EDX AND WDS
400       WERE USED TO DETERMINE THE CHEMICAL COMPOSITION OF THE THIN FILMS.
400       X-RAY DIFFRACTION WAS USED TO IDENTIFY THE STRUCTURE AFTER FILM
400       CRYSTALLIZATION AT 1175 K AND OXIDATION AT 800 K. THE PARTIAL
400       PRESSURE OF OXYGEN APPEARS TO HAVE THE MOST PROFOUND EFFECT ON THE
400       STOICHIOMETRY BY LOWERING THE BARIUM CONTENT. NEGATIVE ION
400       RESPUTTERING OF THE GROWING FILM APPARENTLY ALSO SHOWS FILM GROWTH
400       RATE. FILMS DEPOSITED ON ALUMINA CIRCUITBOARD WITH A ZRO/SUB 2/
400       BARRIER LAYER HAVE DEMONSTRATED SHARP TRANSITIONS TO SUPERCONDUCTING
400       BEHAVIOR AT 95 K WHEN THE STOICHIOMETRIC RATIO IS PRESERVED.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SPUTTER
500       DEPOSITION; STOICHIOMETRY; SUPERCONDUCTING THIN FILMS; X-RAY
500       DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; THIN FILM; STOICHIOMETRY; PLANAR
510       MAGNETRON SPUTTERING; EDX; WDS; CHEMICAL COMPOSITION; X-RAY
510       DIFFRACTION; STRUCTURE; CRYSTALLIZATION; OXIDATION; GROWTH;
510       CIRCUITBOARD; TRANSITIONS; 95 K; YBA/SUB 2/CU/SUB 3/O/SUB N/; MGO;
510       ZRO/SUB 2/; AL/SUB 2/O/SUB 3/.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; MGO/SUR MG/SUR O/SUR
550       MGO/BIN MG/BIN O/BIN; ZRO2/SUR O2/SUR ZR/SUR O/SUR ZRO2/BIN O2/BIN
550       ZR/BIN O/BIN; AL2O3/SUR AL2/SUR AL/SUR O3/SUR O/SUR AL2O3/BIN AL2/BIN
550       AL/BIN O3/BIN O/BIN.
560       TEMPERATURE 9.5 E+01 K.

DOCUMENT=            1897
 AUTH     = AUCIELLO
 DT       = 06
 KN       = B40891600377
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407368
002       B40891600377
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ION BEAM SPUTTER DEPOSITION YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /: BEAM
100       INDUCED TARGET CHANGES AND THEIR EFFECT ON DEPOSITED FILM
100       COMPOSITION.
200       AUCIELLO, O.; AMEEN, M.S.; GRAETTINGER, T.M.; ROU, S.H.; SOBLE, C.;
200       KINGON, A.I.
220       NORTH CAROLINA STATE UNIV., RALEIGH, NC, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.61-4, REF.15
350       ISSN 0094-243X, CODEN APCPCS
400       ION BEAM SPUTTERING IS PRESENTLY USED TO DEPOSIT FILMS FROM SINGLE
400       PHASE YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / TARGETS. GENERALLY, AR+ION
400       BEAMS ( APPROXIMATELY 1500 EV) PRODUCED BY KAUFMAN-TYPE ION SOURCES
400       ARE USED FOR THIS PURPOSE. IT HAS BEEN OBSERVED THAT THESE ION BEAMS
400       INDUCE COMPOSITIONAL AND MORPHOLOGICAL CHANGES ON THE POLYCRYSTALLINE
400       CERAMIC TARGET SURFACE, WHICH RESULTS IN THE COMPOSITION OF SPUTTERED
400       FLUX DISPLAYING A TIME-DEPENDENT BEHAVIOR. THIS IN TURN MAY LEAD TO
400       UNDESIRABLY LONG TIMES FOR REACHING STEADY STATE CONDITIONS IN THE
400       SPUTTERING PROCESS. FROM THE LITERATURE, IT APPEARS THAT ONLY
400       INCOMPLETE STUDIES OF THESE EFFECTS HAVE BEEN PERFORMED DURING
400       EXPERIMENTS DIRECTED MAINLY AT PRODUCING AND CHARACTERIZING HIGH TC
400       FILMS. THEREFORE, THE STUDIES REPORTED IN THIS PAPER HAVE BEEN
400       DIRECTED AT EXAMINING IN SOME DETAIL THE EFFECTS MENTIONED ABOVE AS A
400       FUNCTION OF TWO IMPORTANT PARAMETERS, I.E. ION BEAM ENERGY AND DOSE
400       DEPOSITED IN THE TARGETS DURING THE SPUTTERING PROCESS. THE ANALYSIS
400       TECHNIQUES USED TO CHARACTERIZE THE TARGET CHANGES INCLUDE ELECTRON
400       MICROSCOPY, SCANNING AUGER MICROPROBE, AND X-RAY DIFFRACTION
400       TECHNIQUES. CORRELATIONS BETWEEN TARGET INITIAL CONDITIONS AND
400       ION-INDUCED CHANGES AND FILM COMPOSITIONS ARE DISCUSSED. THE RESULTS
400       INDICATE COPPER DEPLETION IN THE SPUTTERED TARGETS AND COPPER
400       ENRICHMENT IN THE DEPOSITED FILMS. THE SPUTTER CONDITIONS PLAY A
400       CRITICAL ROLE IN DETERMINING THE SURFACE TOPOGRAPHY EVOLUTION. NO
400       CORRELATIONS BETWEEN SURFACE MICROSTRUCTURE AND FILM COMPOSITIONS
400       WERE OBSERVED.
500       AUGER EFFECT; BARIUM COMPOUNDS; ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; HIGH-TEMPERATURE SUPERCONDUCTORS; SPUTTER DEPOSITION;
500       SUPERCONDUCTING THIN FILMS; X-RAY DIFFRACTION EXAMINATION OF
500       MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ION BEAM SPUTTER DEPOSITION;
510       POLYCRYSTALLINE CERAMIC TARGET SURFACE; ELECTRON MICROSCOPY; SCANNING
510       AUGER MICROPROBE; X-RAY DIFFRACTION; SURFACE TOPOGRAPHY; SURFACE
510       MICROSTRUCTURE; FILM COMPOSITIONS; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA
510       /.
550       YBA2CU3O/SUR BA2/SUR CU3/SUR BA/SUR CU/SUR O/SUR Y/SUR YBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1898
 AUTH     = TRUMAN
 DT       = 06
 KN       = B40891600378
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407369
002       B40891600378
010       CONFERENCE PAPER; EXPERIMENTAL.
100       INVESTIGATION OF SRTIO/SUB 3/ BARRIER LAYERS FOR RF SPUTTER-DEPOSITED
100       Y-BA-CU-O FILMS ON SI AND SAPPHIRE.
200       TRUMAN, J.K.; LESKELA, M.; MUELLER, C.H.; HOLLOWAY, P.H.
220       DEPT. OF MATER. SCI. ? ENG., FLORIDA UNIV., GAINESVILLE, FL, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.65-73, REF.13
350       ISSN 0094-243X, CODEN APCPCS
400       FILMS OF Y-BA-CU-O WERE DEPOSITED BY RF PLANAR MAGNETRON SPUTTERING
400       FROM SINGLE SINTERED OXIDE TARGETS ONTO SILICON AND SAPPHIRE
400       SUBSTRATES WITH AND WITHOUT RF SPUTTER-DEPOSITED SRTIO/SUB 3/ BARRIER
400       LAYERS. THE COMPOSITION OF YBCO FILMS WAS DETERMINED BY ELECTRON
400       MICROPROBE ANALYSIS. THE EFFECTIVENESS OF THE BARRIER LAYERS WAS
400       DETERMINED FROM AES, XRD, ROOM TEMPERATURE RESISTIVITY, AND OPTICAL
400       AND ELECTRON MICROSCOPY DATA. FILMS OF SRTIO/SUB 3/ WERE FOUND TO
400       EXHIBIT (111) PREFERENTIAL ORIENTATION PARALLEL TO (100) SI, BUT NO
400       PREFERENTIAL ORIENTATION WAS OBSERVED ON SAPPHIRE. SILICON WAS
400       PREVENTED BY SRTIO/SUB 3/ FROM REACHING THE Y-BA-CU-O, BUT WAS NOT A
400       SUITABLE BARRIER LAYER SINCE BA MIGRATED TO THE SI INTERFACE. FOR
400       SAPPHIRE, SRTIO/SUB 3/ PREVENTED INTERACTION BETWEEN Y-BA-CU-O AND
400       THE SUBSTRATE, ALTHOUGH AL DID MIGRATE A LIMITED DISTANCE INTO THE
400       SRTIO/SUB 3/.
500       AUGER EFFECT; BARIUM COMPOUNDS; ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; HIGH-TEMPERATURE SUPERCONDUCTORS; SPUTTER DEPOSITION;
500       SUPERCONDUCTING THIN FILMS; X-RAY DIFFRACTION EXAMINATION OF
500       MATERIALS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; X-RAY DIFFRACTION; OPTICAL
510       MICROSCOPY; RF PLANAR MAGNETRON SPUTTERING; SAPPHIRE SUBSTRATES;
510       COMPOSITION; ELECTRON MICROPROBE ANALYSIS; AES; RESISTIVITY; ELECTRON
510       MICROSCOPY; PREFERENTIAL ORIENTATION; SRTIO/SUB 3/ BARRIER LAYERS;
510       Y-BA-CU-O FILMS; SI SUBSTRATES; AL/SUB 2/O/SUB 3/.
550       SI/SUR SI/EL; AL2O3/SUR AL2/SUR AL/SUR O3/SUR O/SUR AL2O3/BIN AL2/BIN
550       AL/BIN O3/BIN O/BIN; SRTIO3/INT TIO3/INT O3/INT SR/INT TI/INT O/INT
550       SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS; YBACUO/SS BA/SS CU/SS O/SS
550       Y/SS.

DOCUMENT=            1899
 AUTH     = CHEN
 DT       = 06
 KN       = B40891600379
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407370
002       B40891600379
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SUPERCONDUCTING TL-CA-BA-CU-O THIN FILMS BY REACTIVE MAGNETRON
100       SPUTTERING.
200       CHEN, D.H.; SABATINI, R.L.; QIU, S.L.; DI MARZIO, D.; HEALD, S.M.;
200       WIESMAN, H.
220       BROOKHAVEN NAT. LAB., UPTON, NY, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.74-81, REF.10
350       ISSN 0094-243X, CODEN APCPCS
400       SUPERCONDUCTING TL-CA-BA-CU-O THIN FILMS WITH T/SUB C/ ONSETS OF 115
400       K AND T/SUB C/ (R=0) OF 95 K HAVE BEEN PREPARED BY REACTIVE MAGNETRON
400       SPUTTERING USING TL, CU AND CA/BA METAL TARGETS. IT WAS FOUND THAT
400       PROPER THALLIUM CONTENT IS CRUCIAL FOR OBTAINING A HIGH TRANSITION
400       TEMPERATURE. WET OXYGEN AND A SEALED GOLD TUBE WITH ADDITIONAL
400       THALLIUM COMPOUNDS WERE USED TO REDUCE THE LOSS OF THALLIUM DURING
400       ANNEALING. X-RAY DIFFRACTION SPECTRA SHOW THAT FILMS WITH THE
400       SHARPEST TRANSITION AT 95 K ARE PREDOMINANTLY C-AXIS ORIENTED. XANES
400       ALSO SHOWS A PREFERRED C-AXIS ORIENTATION FOR THE SUPERCONDUCTING
400       FILM, WHILE FOR A NONSUPERCONDUCTING FILM THE NEAR EDGE STRUCTURE
400       SUGGESTS GREATER DISORDER. X-RAY MICROPROBE FLUORESCENCE MEASUREMENTS
400       INDICATE THAT THESE FILMS ARE CLOSE TO THE 2122 STOICHIOMETRY.
400       SCANNING ELECTRON MICROSCOPY ON THESE FILMS IS ALSO PRESENTED.
500       ANNEALING; BARIUM COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SCANNING ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; SPUTTER DEPOSITION; SUPERCONDUCTING THIN FILMS;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; THALLIUM COMPOUNDS; X-RAY
500       DIFFRACTION EXAMINATION OF MATERIALS; XANES.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SCANNING ELECTRON MICROSCOPY;
510       REACTIVE MAGNETRON SPUTTERING; TRANSITION TEMPERATURE; ANNEALING;
510       X-RAY DIFFRACTION; XANES; PREFERRED C-AXIS ORIENTATION; DISORDER;
510       X-RAY MICROPROBE FLUORESCENCE; STOICHIOMETRY; 95 K; 115 K;
510       TL-CA-BA-CU-O THIN FILMS.
550       TLCABACUO/SS BA/SS CA/SS CU/SS TL/SS O/SS.
560       TEMPERATURE 9.5 E+01 K; TEMPERATURE 1.15 E+02 K.

DOCUMENT=            1900
 AUTH     = JOSEFOWI
 DT       = 06
 KN       = B40891600380
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407371
002       B40891600380
010       CONFERENCE PAPER; NEW DEVELOPMENT, EXPERIMENTAL.
100       THIN FILMS OF Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB X/ DEPOSITED USING
100       THREE TARGET CO-SPUTTERING AND THEIR APPLICATIONS TO MICROBRIDGE
100       JUNCTIONS AND SINGLE-ELEMENT IR DETECTORS.
200       JOSEFOWICZ, J.Y.; RENSCH, D.B.; HUNTER, A.T.; KIMURA, H.; CLEMENS,
200       B.M. / SPARGO, J.; WIENER-AVNIR, E.; KERBER, G.; WILSON, J.A.; JACK,
200       W.D.; MYROSZYNYK, J.M.; KVAAS, R.E.
220       HUGHES RES. LAB., MALIBU, CA, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.82-9, REF.12
350       ISSN 0094-243X, CODEN APCPCS
400       THE AUTHORS HAVE PRODUCED SUPERCONDUCTING THIN FILMS OF Y/SUB
400       1/BA/SUB 2/CU/SUB 3/O/SUB X/ (YBCO) ON SRTIO/SUB 3/, ZRO/SUB 2/(Y/SUB
400       2/O/SUB 3/), AND AL/SUB 2/O/SUB 3/ HAVING T/SUB C/'S OF 90 K AND
400       SHARP DELTA T/SUB C/'S (0.3K FOR 90% TO 10% ON SRTIO/SUB 3/ AND
400       3.3*10/SUP 5/ A/CM/SUP 2/ AT 78 K). SAMPLES WERE FABRICATED IN A
400       THREE TARGET MAGNETRON CO-SPUTTERING, COMPUTER CONTROLLED SYSTEM
400       USING SEPARATE BAF/SUB 2/, Y, AND CU TARGETS. RUTHERFORD
400       BACKSCATTERING (RBS) AND RESISTIVITY MEASUREMENTS SHOWED THAT THE
400       THICKNESS AND COMPOSITION UNIFORMITY WAS 99% ACROSS A 2-IN.-DIAMETER
400       SUBSTRATE. FILMS WERE DEPOSITED AT ROOM TEMPERATURE AND WERE
400       SUBSEQUENTLY ANNEALED IN WET O/SUB 2/ AT 850 DEGREES C FOR 1.0 HR.
400       ANALYSIS OF THE FILMS BY X-RAY DIFFRACTION INDICATES HIGHLY ORIENTED
400       CRYSTALLINE STRUCTURE WITH A AND C AXES PERPENDICULAR TO THE
400       SUBSTRATE SURFACE FOR (100) SRTIO/SUB 3/, AND RANDOMLY ORIENTED Y/SUB
400       1/BA/SUB 2/CU/SUB 3/O/SUB X/ POLYCRYSTALLINE STRUCTURE FOR ZRO/SUB 2/
400       AND AL/SUB 2/O/SUB 3/. BOTH LASER ABLATION AND PHOTOLITHOGRAPHIC/ION
400       MILLING PROCESSES WERE DEVELOPED TO PATTERN THE HIGH T/SUB C/
400       SUPERCONDUCTING FILMS. BRIDGE STRUCTURES WERE FABRICATED IN THIN
400       FILMS DEPOSITED ON SAPPHIRE AND ZRO/SUB 2/ SUBSTRATES. WEAK LINK
400       JOSEPHSON BEHAVIOR WAS OBSERVED FROM 4.2 K UP TO T/SUB C/. THEY HAVE
400       ALSO FABRICATED SINGLE-ELEMENT DETECTORS USING THIN FILMS OF
400       SUPERCONDUCTING YBACUO AND DEMONSTRATED IR SENSITIVITY WITH
400       RESPONSIVITIES EQUIVALENT TO 3*10/SUP 3/ V/W.
500       ANNEALING; BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       INFRARED DETECTORS; PHOTOLITHOGRAPHY; RUTHERFORD BACKSCATTERING;
500       SPUTTER DEPOSITION; SUPERCONDUCTING JUNCTION DEVICES; SUPERCONDUCTING
500       THIN FILMS; X-RAY DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ANNEALING; WEAK LINK JOSEPHSON
510       JUNCTION; PATTERNING; PHOTOLITHOGRAPHY; ION MILLING; CRITICAL
510       TEMPERATURES; MICROBRIDGE JUNCTIONS; SINGLE-ELEMENT IR DETECTORS;
510       SUPERCONDUCTING THIN FILMS; THREE TARGET MAGNETRON CO-SPUTTERING;
510       COMPUTER CONTROLLED SYSTEM; RUTHERFORD BACKSCATTERING; RESISTIVITY;
510       COMPOSITION; X-RAY DIFFRACTION; ORIENTED CRYSTALLINE STRUCTURE;
510       POLYCRYSTALLINE; LASER ABLATION; SAPPHIRE; 90 K; Y/SUB 1/BA/SUB
510       2/CU/SUB 3/O/SUB X/; SRTIO/SUB 3/; AL/SUB 2/O/SUB 3/; ZRO/SUB
510       2/-Y/SUB 2/O/SUB 3/.
550       SRTIO3/SUR TIO3/SUR O3/SUR SR/SUR TI/SUR O/SUR SRTIO3/SS TIO3/SS
550       O3/SS SR/SS TI/SS O/SS; AL2O3/SUR AL2/SUR AL/SUR O3/SUR O/SUR
550       AL2O3/BIN AL2/BIN AL/BIN O3/BIN O/BIN; ZRO2Y2O3/SUR O2/SUR O3/SUR
550       Y2/SUR ZR/SUR O/SUR Y/SUR ZRO2Y2O3/SS O2/SS O3/SS Y2/SS ZR/SS O/SS
550       Y/SS; Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.
560       TEMPERATURE 9.0 E+01 K.

DOCUMENT=            1901
 AUTH     = MANINI
 DT       = 06
 KN       = B40891600381
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407372
002       B40891600381
010       CONFERENCE PAPER; PRACTICAL, EXPERIMENTAL.
100       METALLIC ALLOY TARGETS FOR HIGH T/SUB C/ SUPERCONDUCTING FILM
100       DEPOSITION.
200       MANINI, P. / NIGRO, A.; ROMANO, P.; VAGLIO, R.
220       SAES GETTERS, SPA, MILAN, ITALY
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.90-8, REF.14
350       ISSN 0094-243X, CODEN APCPCS
400       MANY EXPERIMENTS ARE NOWADAYS CONDUCTED WORLDWIDE ON SUPERCONDUCTING
400       FILMS BASED ON THE RECENTLY DEVELOPED HIGH T/SUB C/ SUPERCONDUCTOR
400       MATERIALS (YBCO, BISCO, ETC.). THERE ARE DIFFERENT WAYS TO PRODUCE
400       THESE FILMS, AMONG WHICH SPUTTERING AND EVAPORATION ARE MOST POPULAR.
400       NORMALLY, USE IS MADE OF OXIDES, PURE METALS OR COMPOUNDS AS MATERIAL
400       SOURCES. IN THE PRESENT PAPER THE AUTHORS DESCRIBE THE FABRICATION
400       PROCESS AND THE PHYSICO-CHEMICAL CHARACTERISTICS OF VARIOUS METALLIC
400       ALLOY COMPONENTS FOR BOTH SPUTTERING AND EVAPORATION PROCESSES WHICH
400       SHOW VARIOUS ADVANTAGES IN TERMS OF STABILITY, EASINESS OF USE,
400       PURITY, FLEXIBILITY IN COMPOSITION AND SHAPE AND ALLOW GOOD PROCESS
400       CONTROL. DEPOSITION TECHNIQUES AND EXPERIMENTAL RESULTS OBTAINED ON
400       THIN FILMS OF THE NEW SUPERCONDUCTORS REALIZED STARTING FROM THESE
400       ALLOYS ARE ALSO REPORTED.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SPUTTER DEPOSITION; SUPERCONDUCTING
500       THIN FILMS; VACUUM DEPOSITION.
510       HIGH TEMPERATURE SUPERCONDUCTORS; METALLIC ALLOY TARGETS; SPUTTERING;
510       EVAPORATION; STABILITY; PURITY; COMPOSITION; THIN FILMS.

DOCUMENT=            1902
 AUTH     = DEW
 DT       = 06
 KN       = B40891600382
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407373
002       B40891600382
010       CONFERENCE PAPER; EXPERIMENTAL.
100       RF MAGNETRON SPUTTERING OF HIGH-TC BI-SR-CA-CU-O THIN FILMS.
200       DEW, S.K.; OSBORNE, N.R.; SULLIVAN, B.T.; MULHERN, P.J.; PARSONS,
200       R.R.
220       DEPT. OF PHYS., BRITISH COLUMBIA UNIV., VANCOUVER, BC, CANADA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.99-106, REF.14
350       ISSN 0094-243X, CODEN APCPCS
400       THIN FILMS OF BI-SR-CA-CU-O WERE PRODUCED BY RF MAGNETRON SPUTTERING
400       ONTO SINGLE CRYSTAL (100) MGO SUBSTRATES. SUBSTRATE TEMPERATURE AND
400       DEPOSITION ATMOSPHERE WERE FOUND TO AFFECT THE THICKNESS AND
400       COMPOSITION OF AS-DEPOSITED FILMS. SUBSEQUENT ANNEALING OF THE FILMS
400       RESULTED IN HIGHLY ORIENTED SUPERCONDUCTORS, WHICH WERE USUALLY
400       MULTIPHASE WITH 2223, 2212, AND 2201 PHASES. FILM PROPERTIES WERE
400       HIGHLY DEPENDENT ON ANNEALING CONDITIONS.
500       ANNEALING; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SPUTTER DEPOSITION; STRONTIUM COMPOUNDS;
500       SUPERCONDUCTING THIN FILMS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; RF MAGNETRON SPUTTERING;
510       COMPOSITION; ANNEALING; MULTIPHASE; BI-SR-CA-CU-O THIN FILMS; MGO
510       SUBSTRATES.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS; MGO/SUR MG/SUR O/SUR
550       MGO/BIN MG/BIN O/BIN.

DOCUMENT=            1903
 AUTH     = HONG
 DT       = 06
 KN       = B40891600383
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407374
002       B40891600383
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SINGLE-PHASE HIGH T/SUB C/ SUPERCONDUCTING TL/SUB 2/BA/SUB 2/CA/SUB
100       2/CU/SUB 3/O/SUB 10/ FILMS.
200       HONG, M.; KWO, J.; CHEN, C.H.; KORTAN, A.R.; BACON, D.D. / LIOU, S.H.
220       AT?T BELL LAB., MURRAY HILL, NJ, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.107-14, REF.12
350       ISSN 0094-243X, CODEN APCPCS
400       THE AUTHORS HAVE ROUTINELY PRODUCED SINGLE-PHASE HIGH T/SUB C/
400       SUPERCONDUCTING TL/SUB 2/BA/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB 10/(2223)
400       THIN FILMS 0.2 TO 1.0 MU M THICK ON MGO(100) AND SRTIO/SUB 3/(100)
400       SUBSTRATES BY DC DIODE SPUTTERING. A SINGLE COMPOUND TARGET WITH A
400       COMPOSITION OF TL/SUB 2.3/BA/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB X/ WAS
400       USED. PURE ARGON SPUTTERING HAS BEEN EMPLOYED. THE AS-DEPOSITED FILMS
400       NEED SUBSEQUENT HEAT TREATMENT UNDER AIR OR O/SUB 2/ WITH AN
400       INCLUSION OF A TL-BA-CA-CU-O POWDER COMPACT TO BECOME
400       SUPERCONDUCTING. THE TL/SUB 2/BA/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB 10/
400       FILMS HAVE A T/SUB C/ ONSET AT 125 K AND A T/SUB C/(R=0) AT 116 K.
400       CRITICAL CURRENT DENSITIES J/SUB C/'S MEASURED BY THE TRANSPORT
400       METHOD ARE AS HIGH AS 10/SUP 5/ A/CM/SUP 2/ AT 100 K. X-RAY
400       DIFFRACTION STUDIES SHOW THAT THE FILMS ARE OF SINGLE PHASE, AND HAVE
400       A STRONG PREFERRED ORIENTATION WITH THE C-AXIS PERPENDICULAR TO THE
400       FILM PLANE. FILM MORPHOLOGY AND MICROSTRUCTURE ARE STUDIED BY
400       SCANNING ELECTRON MICROSCOPY (SEM) AND TRANSMISSION ELECTRON
400       MICROSCOPY (TEM).
500       BARIUM COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); HEAT TREATMENT; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SCANNING ELECTRON MICROSCOPE EXAMINATION OF
500       MATERIALS; SPUTTER DEPOSITION; SUPERCONDUCTING THIN FILMS;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; THALLIUM COMPOUNDS;
500       TRANSMISSION ELECTRON MICROSCOPE EXAMINATION OF MATERIALS; X-RAY
500       DIFFRACTION EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CRITICAL TEMPERATURES; CRITICAL
510       CURRENT DENSITIES; SINGLE-PHASE; DC DIODE SPUTTERING; HEAT TREATMENT;
510       X-RAY DIFFRACTION; PREFERRED ORIENTATION; MORPHOLOGY; MICROSTRUCTURE;
510       SCANNING ELECTRON MICROSCOPY; TRANSMISSION ELECTRON MICROSCOPY; 116
510       K; 125 K; TL/SUB 2/BA/SUB 2/CA/SUB 2/CU/SUB 3/O/SUB 10/ FILMS; MGO;
510       SRTIO/SUB 3/.
550       MGO/SUR MG/SUR O/SUR MGO/BIN MG/BIN O/BIN; SRTIO3/SUR TIO3/SUR O3/SUR
550       SR/SUR TI/SUR O/SUR SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS;
550       TL2BA2CA2CU3O10/SS BA2/SS CA2/SS CU3/SS O10/SS TL2/SS BA/SS CA/SS
550       CU/SS TL/SS O/SS.
560       TEMPERATURE 1.16 E+02 K; TEMPERATURE 1.25 E+02 K.

DOCUMENT=            1904
 AUTH     = DOYLE
 DT       = 06
 KN       = B40891600384
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407375
002       B40891600384
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ORIENTED GROWTH OF Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB X/ THIN FILMS BY
100       DUAL ION BEAM SPUTTERING.
200       DOYLE, J.P.; ROY, R.A.; YEE, D.S.; CUOMO, J.J.
220       IBM RES. DIV., T.J. WATSON RES. CENTER, YORKTOWN HEIGHTS, NY, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.115-21, REF.12
350       ISSN 0094-243X, CODEN APCPCS
400       THE AUTHORS REPORT THE DEPOSITION OF CRYSTALLINE AS-DEPOSITED ION
400       BEAM SPUTTERED Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB X/ THIN FILMS WITH
400       ORIENTATIONS OF (100), (001), AND (110)/(103) AND A METHOD FOR
400       CONTROLLING THE ORIENTATION OF THE FILMS. FILMS DEPOSITED ON AL/SUB
400       2/O/SUB 3/ YITTRIA (9%) STABILIZED ZRO/SUB 2/ TYPICALLY HAVE A NEAR
400       RANDOM ORIENTATION, WHILE THE FILMS ON MGO SHOW A HIGH DEGREE OF
400       ORIENTATION. IN ADDITION, POST DEPOSITION HEAT TREATMENTS AT 500
400       DEGREES C WERE FOUND TO REDUCE THE ROOM TEMPERATURE RESISTIVITY
400       SIGNIFICANTLY, ALTHOUGH NO SUPERCONDUCTIVITY WAS OBSERVED. HIGH
400       TEMPERATURE ANNEALING PRODUCED SUPERCONDUCTING MATERIAL, MAINTAINING
400       A SPECULAR SURFACE. RBS ANALYSIS SHOWS A VARIATION IN THE COMPOSITION
400       AS A FUNCTION OF SUBSTRATE POSITION ON THE PLATEN, WHICH INDICATES A
400       RE-SPUTTERING MECHANISM DUE TO HIGHLY ENERGETIC NEUTRALS FROM THE
400       TARGET SURFACE.
500       ANNEALING; BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       RUTHERFORD BACKSCATTERING; SPUTTER DEPOSITION; SUPERCONDUCTING THIN
500       FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; GROWTH; DUAL ION BEAM SPUTTERING;
510       ORIENTATION; HEAT TREATMENTS; RESISTIVITY; ANNEALING; RBS;
510       COMPOSITION; RE-SPUTTERING; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB X/ THIN
510       FILMS; AL/SUB 2/O/SUB 3/; MGO; ZRO/SUB 2/-Y/SUB 2/O/SUB 3/.
550       ZRO2Y2O3/SUR O2/SUR O3/SUR Y2/SUR ZR/SUR O/SUR Y/SUR ZRO2Y2O3/SS
550       O2/SS O3/SS Y2/SS ZR/SS O/SS Y/SS; Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS
550       CU/SS Y1/SS O/SS Y/SS; AL2O3/SUR AL2/SUR AL/SUR O3/SUR O/SUR
550       AL2O3/BIN AL2/BIN AL/BIN O3/BIN O/BIN; MGO/SUR MG/SUR O/SUR MGO/BIN
550       MG/BIN O/BIN.

DOCUMENT=            1905
 AUTH     = HONG
 DT       = 06
 KN       = B40891600385
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407376
002       B40891600385
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SUPERCONDUCTING BI-SR-CA-CU-O FILMS BY SPUTTERING USING A SINGLE
100       OXIDE TARGET.
200       HONG, M.; YEH, J.-J.; KWO, J.; FELDER, R.J.; MILLER, A.; NASSAU, K.;
200       BACON, D.D.
220       AT?T BELL LAB., MURRAY HILL, NJ, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.122-9, REF.11
350       ISSN 0094-243X, CODEN APCPCS
400       THE AUTHORS HAVE PREPARED SUPERCONDUCTING THIN FILMS OF BI-SR-CA-CU-O
400       WITH T/SUB C/(R=0) AT 82 K AND A 20% SHARP DROP IN RESISTIVITY AROUND
400       115 K BY RF MAGNETRON SPUTTERING USING A SINGLE OXIDE TARGET. THE
400       NOMINAL TARGET COMPOSITION IS (METAL CATIONS) 2:1.56:1.09:1.86 OF
400       BI:SR:CA:CU. THE AS-DEPOSITED FILMS HAVE A COMPOSITIONAL RATIO OF
400       BI/SUB 2/SR/SUB 1.9/CA/SUB 1.3/CU/SUB 2.6/O/SUB X/ (+OR-5%) AS
400       DETERMINED BY RUTHERFORD BACKSCATTERING SPECTROMETRY (RBS). THE
400       SUBSTRATES USED ARE SINGLE-CRYSTAL SRTIO/SUB 3/(100) AND MGO(100).
400       WITH HEAT TREATMENTS AT TEMPERATURES ABOVE 860 DEGREES C, THEY HAVE
400       OBTAINED SUPERCONDUCTING FILMS WITH AN ALMOST SINGLE-PHASE BI/SUB
400       2/SR/SUB 2/CA/SUB 1/CU/SUB 2/O/SUB 8/ AS REVEALED BY BOTH X-RAY
400       DIFFRACTION AND TRANSMISSION ELECTRON MICROSCOPY (TEM). THE FILMS ARE
400       HIGHLY TEXTURED WITH THE C-AXIS PERPENDICULAR TO THE FILM PLANE. THE
400       ROOM-TEMPERATURE RESISTIVITY OF THE FILMS IS LOW AROUND 100-200 MU
400       OMEGA -CM. HIGH CRITICAL CURRENT DENSITIES, IN ZERO MAGNETIC FIELD,
400       ARE OF 10/SUP 5/ A/CM/SUP 2/ MEASURED BY THE TRANSPORT METHOD AT
400       TEMPERATURES 10 K BELOW T/SUB C/(R=0). THE SUPERCONDUCTING PROPERTIES
400       SUCH AS T/SUB C/'S AND J/SUB C/'S ARE INDEPENDENT OF THE FILM
400       THICKNESS IN THE RANGE BETWEEN 0.07 TO 0.2 MU M.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); HEAT TREATMENT; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; RUTHERFORD BACKSCATTERING; SPUTTER DEPOSITION;
500       STRONTIUM COMPOUNDS; SUPERCONDUCTING THIN FILMS; SUPERCONDUCTING
500       TRANSITION TEMPERATURE; TRANSMISSION ELECTRON MICROSCOPE EXAMINATION
500       OF MATERIALS; X-RAY DIFFRACTION EXAMINATION OF MATERIALS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CRITICAL TEMPERATURES; TEXTURE;
510       SINGLE OXIDE TARGET; SUPERCONDUCTING THIN FILMS; RF MAGNETRON
510       SPUTTERING; COMPOSITION; RUTHERFORD BACKSCATTERING SPECTROMETRY; HEAT
510       TREATMENTS; SINGLE-PHASE; X-RAY DIFFRACTION; TRANSMISSION ELECTRON
510       MICROSCOPY; RESISTIVITY; CRITICAL CURRENT DENSITIES; 82 K; 115 K;
510       BI/SUB 2/SR/SUB 2/CA/SUB 1/CU/SUB 2/O/SUB 8/; SRTIO/SUB 3/; MGO.
550       SRTIO3/SUR TIO3/SUR O3/SUR SR/SUR TI/SUR O/SUR SRTIO3/SS TIO3/SS
550       O3/SS SR/SS TI/SS O/SS; MGO/SUR MG/SUR O/SUR MGO/BIN MG/BIN O/BIN;
550       BI2SR2CA1CU2O8/SS BI2/SS CA1/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS O8/SS
550       SR/SS O/SS.
560       TEMPERATURE 8.2 E+01 K; TEMPERATURE 1.15 E+02 K.

DOCUMENT=            1906
 AUTH     = MIURA
 DT       = 06
 KN       = B40891600386
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407377
002       B40891600386
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EFFECTS OF OXYGEN PARTIAL PRESSURE ON PROPERTIES OF Y-BA-CU-O FILMS
100       PREPARED BY MAGNETRON SPUTTERING.
200       MIURA, T.; TERASHIMA, Y.; SAGOI, M.; KUBO, K.; YOSHIDA, J.;
200       MIZUSHIMA, K.
220       TOSHIBA RES. ? DEV. CENTER, KAWASAKI, JAPAN
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.130-7, REF.18
350       ISSN 0094-243X, CODEN APCPCS
400       DEPENDENCE OF ORIENTATION IN Y-BA-CU-O FILMS ON OXYGEN PARTIAL
400       PRESSURE HAS BEEN INVESTIGATED FOR FILMS PREPARED BY MAGNETRON
400       SPUTTERING ON SRTIO/SUB 3/ (100) PLANES. ORIENTATIONS WERE CLOSELY
400       RELATED TO THE OXYGEN PARTIAL PRESSURE IN THE 530 TO 680 DEGREES C
400       SUBSTRATE TEMPERATURE RANGE. THE DEPENDENCE ON SUBSTRATE TEMPERATURE
400       WAS NOT OBSERVED CLEARLY BELOW 680 DEGREES C. AT LOW OXYGEN PRESSURE,
400       THE C AXIS WAS ORIENTED PERPENDICULAR TO THE FILM PLANE. WITH AN
400       INCREASE IN OXYGEN PRESSURE, THE FILMS TENDED TO HAVE A AXIS NORMAL
400       TO THE FILM SURFACE. WHEN THE GAS PRESSURE DURING SPUTTERING WAS 0.65
400       PA WITH OXYGEN AT 50% ZERO RESISTIVITY WAS OBTAINED AT 70 K FOR MANY
400       FILMS WITHOUT POST ANNEALING AND 80 K FOR THE BEST FILM. AT HIGHER
400       OXYGEN PRESSURE, THE A AXIS WAS ORIENTED WITH THE EXPANDED LATTICE
400       PARAMETER AND SUPERCONDUCTING FILMS WERE NOT OBTAINED WITHOUT POST
400       ANNEALING. AT 0.32 PA OF OXYGEN, THE OXYGEN UPTAKE DURING FILM GROWTH
400       WAS MOST EFFECTIVE. AT THE HIGHER SUBSTRATE TEMPERATURE OF 730
400       DEGREES C, C AXIS ORIENTED FILMS WERE FORMED.
500       ANNEALING; BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SPUTTER DEPOSITION; SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; OXYGEN PARTIAL PRESSURE; MAGNETRON
510       SPUTTERING; ORIENTATION; SUBSTRATE TEMPERATURE; ZERO RESISTIVITY;
510       ANNEALING; GROWTH; 70 TO 80 K; 530 TO 680 DEGC; Y-BA-CU-O FILMS;
510       SRTIO/SUB 3/.
550       SRTIO3/SUR TIO3/SUR O3/SUR SR/SUR TI/SUR O/SUR SRTIO3/SS TIO3/SS
550       O3/SS SR/SS TI/SS O/SS; YBACUO/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 7.0 E+01 TO 8.0 E+01 K; TEMPERATURE 8.03 E+02 TO 9.53
560       E+02 K.

DOCUMENT=            1907
 AUTH     = DAVIS
 DT       = 06
 KN       = B40891600387
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407378
002       B40891600387
010       CONFERENCE PAPER; EXPERIMENTAL.
100       A FLASH EVAPORATION TECHNIQUE FOR OXIDE SUPERCONDUCTORS.
200       DAVIS, M.F.; WOSIK, J.; WOLFE, J.C.; LICHTENBERG, C.L.
220       DEPT. OF ELECTR. ENG., HOUSTON UNIV., TX, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.140-6, REF.8
350       ISSN 0094-243X, CODEN APCPCS
400       AN ELECTRON BEAM FLASH EVAPORATION TECHNIQUE IS PRESENTED WHICH CAN
400       REPRODUCE THE STOICHIOMETRY OF YBA/SUB 2/CU/SUB 3/O/SUB X/ AND BI/SUB
400       2/CASR/SUB 2/CU/SUB 2/O/SUB Y/ SOURCE POWDERS. PROCESS DETAILS SUCH
400       AS SOURCE POWDER DEGASSING AND ELECTRON BEAM OPERATING PARAMETERS ARE
400       DESCRIBED. ZERO RESISTANCE TEMPERATURES NEAR 80 K WERE OBTAINED FOR
400       BOTH MATERIALS. THE BI/SUB 2/CASR/SUB 2/CU/SUB 2/O/SUB Y/ FILMS
400       DEPOSITED ON MGO ARE HIGHLY TEXTURED WITH THE C-AXIS NORMAL TO THE
400       SUBSTRATE.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; ELECTRON BEAM
500       DEPOSITION; HIGH-TEMPERATURE SUPERCONDUCTORS; STRONTIUM COMPOUNDS;
500       SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; TEXTURE; ZERO RESISTANCE
510       TEMPERATURES; OXIDE SUPERCONDUCTORS; ELECTRON BEAM FLASH EVAPORATION;
510       STOICHIOMETRY; FILMS; 80 K; YBA/SUB 2/CU/SUB 3/O/SUB X/; BI/SUB
510       2/CASR/SUB 2/CU/SUB 2/O/SUB Y/; MGO.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; BI2CASR2CU2O/SS
550       BI2/SS CU2/SS SR2/SS BI/SS CA/SS CU/SS SR/SS O/SS; MGO/SUR MG/SUR
550       O/SUR MGO/BIN MG/BIN O/BIN.
560       TEMPERATURE 8.0 E+01 K.

DOCUMENT=            1908
 AUTH     = VALCO
 DT       = 06
 KN       = B40891600388
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407379
002       B40891600388
010       CONFERENCE PAPER; EXPERIMENTAL.
100       SEQUENTIALLY EVAPORATED THIN Y-BA-CU-O SUPERCONDUCTOR FILMS:
100       COMPOSITION AND PROCESSING EFFECTS.
200       VALCO, G.J.; ROHRER, N.J. / WARNER, J.D.; BHASIN, K.B.
220       OHIO STATE UNIV., COLOMBUS, OH, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.147-54, REF.6
350       ISSN 0094-243X, CODEN APCPCS
400       THIN FILMS OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / HAVE BEEN GROWN BY
400       SEQUENTIAL EVAPORATION OF CU, Y AND BAF/SUB 2/ ON SRTIO/SUB 3/ AND
400       MGO SUBSTRATES. THE ONSET TEMPERATURES WERE AS HIGH AS 93 K, WHILE
400       T/SUB C/ WAS 85 K. THE BA/Y RATIO WAS VARIED FROM 1.9 TO 4.0. THE
400       CU/Y RATIO WAS VARIED FROM 2.8 TO 3.4. THE FILMS WERE THEN ANNEALED
400       AT VARIOUS TIMES AND TEMPERATURES. THE TIMES RANGED FROM 15 MIN TO 3
400       HOURS, WHILE THE ANNEALING TEMPERATURES USED RANGED FROM 850 DEGREES
400       C TO 900 DEGREES C. THERE WAS FOUND A GOOD CORRELATION BETWEEN
400       TRANSITION TEMPERATURE (T/SUB C/) AND THE ANNEALING CONDITIONS; THE
400       FILMS ANNEALED AT 900 DEGREES C ON SRTIO/SUB 3/ HAD THE BEST T/SUB
400       C/'S. THERE WAS A WEAKER CORRELATION BETWEEN COMPOSITION AND T/SUB
400       C/. BARIUM POOR FILMS EXHIBITED SEMICONDUCTING NORMAL STATE
400       RESISTANCE BEHAVIOR WHILE BARIUM RICH FILMS WERE METALLIC. THE FILMS
400       WERE ANALYZED BY RESISTANCE VERSUS TEMPERATURE MEASUREMENTS AND
400       SCANNING ELECTRON MICROSCOPY. THE ANALYSIS OF THE FILMS AND THE
400       CORRELATIONS ARE REPORTED.
500       ANNEALING; BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SCANNING ELECTRON MICROSCOPE EXAMINATION OF MATERIALS;
500       SUPERCONDUCTING THIN FILMS; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       VACUUM DEPOSITION; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SUPERCONDUCTOR FILMS; SEQUENTIAL
510       EVAPORATION; ONSET TEMPERATURES; TRANSITION TEMPERATURE; ANNEALING;
510       COMPOSITION; SEMICONDUCTING; NORMAL STATE RESISTANCE; METALLIC;
510       SCANNING ELECTRON MICROSCOPY; 85 K; 93 K; YBA/SUB 2/CU/SUB 3/O/SUB 7-
510       DELTA /; SRTIO/SUB 3/; MGO.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS; SRTIO3/SUR TIO3/SUR
550       O3/SUR SR/SUR TI/SUR O/SUR SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS;
550       MGO/SUR MG/SUR O/SUR MGO/BIN MG/BIN O/BIN.
560       TEMPERATURE 8.5 E+01 K; TEMPERATURE 9.3 E+01 K.

DOCUMENT=            1909
 AUTH     = BUDHANI
 DT       = 06
 KN       = B40891600389
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407380
002       B40891600389
010       CONFERENCE PAPER; EXPERIMENTAL.
100       EPITAXIAL GROWTH OF DY-BA-CU-O SUPERCONDUCTOR ON (100)SRTIO/SUB 3/
100       USING REACTIVE AND ACTIVATED REACTIVE EVAPORATION PROCESSES.
200       BUDHANI, R.C.; WIESMANN, H.; RUCKMAN, M.W.; SABATANI, R.L.
220       BROOKHAVEN NAT. LAB., UPTON, NY, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.155-62, REF.9
350       ISSN 0094-243X, CODEN APCPCS
400       EPITAXIAL AND HIGHLY ORIENTED THIN FILMS OF DY-BA-CU-O SUPERCONDUCTOR
400       HAVE BEEN GROWN BY THERMAL EVAPORATION OF DY, BA AND CU METALS ONTO
400       MGO AND SRTIO/SUB 3/ SUBSTRATES. OXIDATION OF THE EVAPORATED METAL
400       SPECIES IS REALIZED BY RELEASING OXYGEN GAS NEAR THE SUBSTRATE DURING
400       EVAPORATION. THE FILMS DEPOSITED ON (100)SRTIO/SUB 3/, WHEN ANNEALED
400       AT 900 DEGREES C, CRYSTALLIZE EPITAXIALLY WITH THE C-AXIS IN THE
400       PLANE OF THE SUBSTRATE. THESE FILMS ARE METALLIC WITH A
400       SUPERCONDUCTING TRANSITION WIDTH APPROXIMATELY 1.5 K. ON MAGNESIUM
400       OXIDE SUBSTRATES, THE FILM CRYSTALLIZE INTO A POLYCRYSTALLINE
400       MATERIAL WHICH UNDERGOES A STRONG C-AXIS REORIENTATION UPON FURTHER
400       ANNEALING AT 950 DEGREES C. AN ACTIVATED REACTIVE EVAPORATION PROCESS
400       HAS BEEN SUCCESSFULLY USED FOR IN SITU GROWTH OF THE SUPERCONDUCTING
400       PHASE ON AL/SUB 2/O/SUB 3/ SUBSTRATES. THESE FILMS REACH A ZERO
400       RESISTANCE STATE AT 60 K.
500       ANNEALING; BARIUM COMPOUNDS; DYSPROSIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SUPERCONDUCTING EPITAXIAL LAYERS; VACUUM DEPOSITION.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ANNEALING; REACTIVE EVAPORATION;
510       EPITAXIAL GROWTH; OXIDATION; ACTIVATED REACTIVE EVAPORATION; ORIENTED
510       THIN FILMS; THERMAL EVAPORATION; SUPERCONDUCTING TRANSITION;
510       POLYCRYSTALLINE; GROWTH; ZERO RESISTANCE; 60 K; DY-BA-CU-O
510       SUPERCONDUCTOR; MGO; SRTIO/SUB 3/; AL/SUB 2/O/SUB 3/.
550       DYBACUO/SS BA/SS CU/SS DY/SS O/SS; MGO/SUR MG/SUR O/SUR MGO/BIN
550       MG/BIN O/BIN; SRTIO3/SUR TIO3/SUR O3/SUR SR/SUR TI/SUR O/SUR
550       SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS; AL2O3/SUR AL2/SUR AL/SUR
550       O3/SUR O/SUR AL2O3/BIN AL2/BIN AL/BIN O3/BIN O/BIN.
560       TEMPERATURE 6.0 E+01 K.

DOCUMENT=            1910
 AUTH     = LU
 DT       = 06
 KN       = B40891600390
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407381
002       B40891600390
010       CONFERENCE PAPER; EXPERIMENTAL.
100       RATE AND COMPOSITION CONTROL BY ATOMIC ABSORPTION SPECTROSCOPY FOR
100       THE COEVAPORATION OF HIGH T/SUB C/ SUPERCONDUCTING FILMS.
200       LU, C. / MISSERT, N.; MOOIJ, J.E.; ROSENTHAL, P.; MATIJASEVIC, V.;
200       BEASLEY, M.R.; HAMMOND, R.H.
220       XINIX INC., SANTA CLARA, CA, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.163-70, REF.11
350       ISSN 0094-243X, CODEN APCPCS
400       ATOMIC ABSORPTION SPECTROSCOPY HAS BEEN USED TO CONTROL THE
400       DEPOSITION RATES DURING COEVAPORATION PROCESSES WITH MULTIPLE
400       ELECTRON-BEAM SOURCES. THIS TECHNIQUE IS MATERIAL SPECIFIC AND THUS
400       ALLOWS THE DEPOSITION RATE OF EACH COMPONENT TO BE CONTROLLED
400       INDEPENDENTLY. BECAUSE ONLY A LIGHT BEAM IS NEEDED TO INTERACT WITH
400       THE VAPOR STREAM, THE SAMPLING REGION CAN BE SELECTED TO BE VERY
400       CLOSE TO THE SUBSTRATE FOR PRECISE CONTROL OF THE FILM COMPOSITION.
400       WITH ITS HIGH SENSITIVITY AND NO LIMITATIONS ON OPERATION PRESSURE,
400       THIS TECHNIQUE OFFERS SOME UNIQUE ADVANTAGES FOR THE PREPARATION OF
400       HIGH T/SUB C/ SUPERCONDUCTING FILMS BY COEVAPORATION IN A HIGH OXYGEN
400       PARTIAL PRESSURE ENVIRONMENT. THE PERFORMANCE OF A MULTI-SOURCE
400       DEPOSITION CONTROLLER AND THE RESULTANT FILM PROPERTIES ARE
400       PRESENTED.
500       ATOMIC ABSORPTION SPECTROSCOPY; ELECTRON BEAM DEPOSITION;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING THIN FILMS.
510       RATE CONTROL; HIGH TEMPERATURE SUPERCONDUCTORS; COMPOSITION CONTROL;
510       ATOMIC ABSORPTION SPECTROSCOPY; COEVAPORATION; MULTIPLE ELECTRON-BEAM
510       SOURCES; FILM COMPOSITION; MULTI-SOURCE DEPOSITION CONTROLLER.

DOCUMENT=            1911
 AUTH     = DAM
 DT       = 06
 KN       = B40891600391
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407382
002       B40891600391
010       CONFERENCE PAPER; EXPERIMENTAL.
100       HIGH CRITICAL CURRENTS AND FLUX CREEP EFFECTS IN E-GUN DEPOSITED
100       EPITAXIALLY 001 ORIENTED SUPERCONDUCTING YBA/SUB 2/CU/SUB 3/O/SUB 7-
100       DELTA / FILMS.
200       DAM, B.; STOLLMAN, G.M. / BERGHUIS, P.; GUO, S.Q.; FLIPSE, C.F.J.;
200       LENSINK, J.G.; GRIESSEN, R.P.
220       PHILIPS RES. LAB., EINDHOVEN, NETHERLANDS
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.172-9, REF.17
350       ISSN 0094-243X, CODEN APCPCS
400       THIN FILMS OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / HAVE BEEN MADE BY
400       CODEPOSITION OF CU, Y AND BAF/SUB 2/ IN A UHV SYSTEM. ANNEALING IN
400       HUMID OXYGEN AT 835 DEGREES C PRODUCES HIGH QUALITY SINGLE PHASE
400       PREFERENTIALLY C ORIENTED FILMS. IN 1000 AA THIN FILMS THE TRANSPORT
400       CURRENT DENSITY IS LARGER THAN 10/SUP 6/A/CM/SUP 2/ AT 86 K. EVEN 500
400       AA FILMS PROVE TO BE SUPERCONDUCTING ABOVE 77 K. EXTRAPOLATION TO
400       ZERO FIELD OF THE MAGNETIZATION DATA OBTAINED FROM TORQUE EXPERIMENTS
400       ARE CONSISTENT WITH THE CURRENT TRANSPORT DATA. THIS INDICATES THAT
400       THE SAMPLE IS HOMOGENEOUS AND THE CRITICAL STATE MODEL CAN BE
400       APPLIED. BOTH MAGNETIC RELAXATION MEASUREMENTS AND FLUX CREEP
400       RESISTIVITY IN A MAGNETIC FIELD INDICATE THE IMPORTANCE OF THERMALLY
400       ACTIVATED PROCESSES.
500       ANNEALING; BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); ELECTRON BEAM DEPOSITION; FLUX CREEP;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETISATION; SUPERCONDUCTING
500       EPITAXIAL LAYERS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; EPITAXIAL FILMS; ELECTRON GUN
510       DEPOSITION; ANNEALING; CRITICAL CURRENTS; CODEPOSITION; ORIENTED
510       FILMS; TRANSPORT CURRENT DENSITY; MAGNETIZATION; TORQUE; HOMOGENEOUS;
510       CRITICAL STATE MODEL; MAGNETIC RELAXATION; FLUX CREEP RESISTIVITY;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1912
 AUTH     = FISANICK
 DT       = 06
 KN       = B40891600392
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407383
002       B40891600392
010       CONFERENCE PAPER; THEORETICAL.
100       FACTORS INFLUENCING CRITICAL CURRENT DENSITIES IN HIGH T/SUB C/
100       SUPERCONDUCTORS.
200       FISANICK, G.J.
220       AT?T BELL LAB., MURRAY HILL, NJ, USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.180-93, REF.20
350       ISSN 0094-243X, CODEN APCPCS
400       A KEY REQUIREMENT FOR MANY PRACTICAL APPLICATIONS OF THE NEW CLASS OF
400       HIGH T/SUB C/ SUPERCONDUCTORS IS THE ABILITY TO SUSTAIN HIGH CURRENT
400       DENSITIES IN THE PRESENCE OF MAGNETIC FIELDS. THE NEW MATERIALS
400       PRESENT TWO SUBSTANTIALLY DIFFERENT BEHAVIORS. FOR BA/SUB 2/YCU/SUB
400       3/O/SUB 7/ CRITICAL CURRENT BEHAVIOR OF POLYCRYSTALLINE MATERIAL IS
400       DOMINATED BY INTERGRANULAR TRANSPORT. THE AUTHORS REVIEW A MODEL FOR
400       TRANSPORT INVOLVING THE EFFECTS OF THE CORRELATION OF DEFECTS WITH
400       GRAIN BOUNDARY ORIENTATION, THE PRESENCE OF IMPURITIES AT THE GRAIN
400       BOUNDARIES, MEASUREMENTS OF TUNNELING CHARACTERISTICS THROUGH
400       BOUNDARIES, AND THE EFFECT OF GRAIN ALIGNMENT ON CRITICAL CURRENT.
400       THE CASE IS SUBSTANTIALLY DIFFERENT IN THE 84 K SUPERCONDUCTING PHASE
400       BI/SUB 2.2/SR/SUB 2/CA/SUB 0.8/CU/SUB 2/O/SUB 8+ DELTA / WHERE THERE
400       IS A VERY STRONG DEPENDENCE OF CRITICAL CURRENT DENSITIES AT 30-84 K
400       ON MAGNETIC FIELD FOR SINGLE CRYSTALS. THERE IS A LACK OF THRESHOLD
400       BEHAVIOR IN THE I-V CHARACTERISTICS IN FINITE APPLIED FIELDS LARGER
400       THAN H/SUB C1/(T) WHICH IS ATTRIBUTABLE TO FLUX MOTION. THIS SUGGESTS
400       THAT IN THE BI MATERIAL THERE IS INSUFFICIENT PINNING OF VORTICES IN
400       THE INTRINSIC MATERIAL TO PREVENT THEM FROM MOVING IN THE PRESENCE OF
400       AN APPLIED TRANSPORT CURRENT, CAUSING ENERGY DISSIPATION. THESE
400       RESULTS ARE IN AGREEMENT WITH OBSERVATIONS OF FLUX LATTICE MELTING IN
400       SINGLE CRYSTALS OF BA/SUB 2/YCU/SUB 3/O/SUB 7/ AND BI/SUB 2.2/SR/SUB
400       2/CA/SUB 0.8/CU/SUB 2/O/SUB 8+ DELTA /. THE IMPLICATIONS OF THESE
400       VARIOUS FACTORS ON POTENTIAL APPLICATIONS OF THESE MATERIALS ARE
400       DISCUSSED.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL
500       CURRENT DENSITY (SUPERCONDUCTIVITY); FLUX FLOW; FLUX PINNING;
500       FLUX-LINE LATTICE; GRAIN BOUNDARIES; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; STRONTIUM COMPOUNDS; SUPERCONDUCTIVE TUNNELLING;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; VORTEX PINNING; CRITICAL CURRENT
510       DENSITIES; POLYCRYSTALLINE; INTERGRANULAR TRANSPORT; DEFECTS;
510       IMPURITIES; GRAIN BOUNDARIES; TUNNELING; MAGNETIC FIELD; SINGLE
510       CRYSTALS; FLUX MOTION; ENERGY DISSIPATION; FLUX LATTICE MELTING; 84
510       K; BA/SUB 2/YCU/SUB 3/O/SUB 7/; BI/SUB 2.2/SR/SUB 2/CA/SUB 0.8/CU/SUB
510       2/O/SUB 8+ DELTA /.
550       BA2YCU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS;
550       BI2.2SR2CA0.8CU2O/SS BI2.2/SS CA0.8/SS CU2/SS SR2/SS BI/SS CA/SS
550       CU/SS SR/SS O/SS.
560       TEMPERATURE 8.4 E+01 K.

DOCUMENT=            1913
 AUTH     = TSUEI
 DT       = 06
 KN       = B40891600393
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407384
002       B40891600393
010       CONFERENCE PAPER; EXPERIMENTAL.
100       LIMITATIONS ON CRITICAL CURRENTS IN HIGH TEMPERATURE SUPERCONDUCTORS.
200       TSUEI, C.C.; MANNHART, J.; DIMOS, D.
220       IBM RES. DIV., THOMAS J. WATSON RES. CENTER, YORKTOWN HEIGHTS, NY,
220       USA
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.194-205, REF.28
350       ISSN 0094-243X, CODEN APCPCS
400       THE CRITICAL CURRENT DENSITY, J/SUB C/, OF HIGH TEMPERATURE
400       SUPERCONDUCTING OXIDES SUCH AS YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
400       CAN VARY BY MORE THAN FOUR ORDERS OF MAGNITUDE, DEPENDING ON WHETHER
400       THE SAMPLE IS IN THE FORM OF AN EPITAXIAL FILM, A SINGLE CRYSTAL OR A
400       POLYCRYSTAL. AS A FUNCTION OF INCREASING REDUCED MAGNETIC FIELD,
400       J/SUB C/ IN HIGH TEMPERATURE SUPERCONDUCTORS GENERALLY DECREASES MORE
400       READILY THAN THAT OF CONVENTIONAL SUPERCONDUCTORS SUCH AS NB/SUB
400       3/SN. THESE EXPERIMENTAL OBSERVATIONS ARE CONSIDERED IN TERMS OF
400       VARIOUS CRITICAL CURRENT LIMITING FACTORS WHICH INCLUDE: (1)
400       DEPAIRING, (2) FLUX CREEP, (3) WEAK LINK EFFECTS. IN THE LIMIT OF
400       DEPAIRING, THE ZERO FIELD J/SUB C/, IS EXPECTED TO BE IN THE RANGE OF
400       10/SUP 8-9/A/CM/SUP 2/ AT 4.2 K AND IN THE RANGE OF 10/SUP
400       7-8/A/CM/SUP 2/ AT 77 K. THE HIGHEST EXPERIMENTAL VALUE FOR J/SUB C/,
400       WHICH WAS OBSERVED IN (001) SINGLE CRYSTAL EPITAXIAL FILMS IS AT
400       LEAST AN ORDER OF MAGNITUDE LOWER THAN THE DEPAIRING LIMIT. IN THESE
400       FILMS, J/SUB C/ IS FOUND TO BE LIMITED BY FLUX CREEP. WITH THE AID OF
400       THE TECHNIQUES OF EPITAXIAL FILM GROWTH AND LASER MICRO-PATTERNING, A
400       SERIES OF EXPERIMENTS HAS BEEN DESIGNED TO STUDY THE CRITICAL CURRENT
400       LIMITING EFFECTS AT ISOLATED GRAIN BOUNDARIES. THESE EXPERIMENTS
400       INDICATE THAT J/SUB C/ IN POLYCRYSTALS IS FURTHER LIMITED BY THE
400       GRAIN BOUNDARIES, WHICH FORM SNS-TYPE JOSEPHSON WEAK LINKS. THE
400       DEPENDENCE OF THE CRITICAL CURRENT DENSITY OF THE WEAK LINKS ON
400       MAGNETIC FIELDS OFFERS A POSSIBLE EXPLANATION FOR THE MAGNETIC FIELD
400       SENSITIVITY OF J/SUB C/ OF POLYCRYSTALLINE SAMPLES.
500       BARIUM COMPOUNDS; CRITICAL CURRENT DENSITY (SUPERCONDUCTIVITY); FLUX
500       CREEP; GRAIN BOUNDARIES; HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON
500       EFFECT; SUPERCONDUCTING EPITAXIAL LAYERS; YTTRIUM COMPOUNDS.
510       CRITICAL CURRENTS; HIGH TEMPERATURE SUPERCONDUCTING OXIDES; EPITAXIAL
510       FILM; SINGLE CRYSTAL; POLYCRYSTAL; DEPAIRING; FLUX CREEP; WEAK LINK;
510       LASER MICRO-PATTERNING; GRAIN BOUNDARIES; SNS-TYPE JOSEPHSON WEAK
510       LINKS; MAGNETIC FIELDS; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1914
 AUTH     = HALBRITT
 DT       = 06
 KN       = B40891600394
 LG       = ENGL
 SN       = ISSN 0094-243X
 YR       = 88
000       3407385
002       B40891600394
010       CONFERENCE PAPER; EXPERIMENTAL.
100       ARXPS-STUDIES OF C-AXIS TEXTURED AND POLYCRYSTALLINE SUPERCONDUCTING
100       YBA/SUB 2/CU/SUB 3/O/SUB X/.
200       HALBRITTER, J. / WALK, P.; MATHES, H.-J.; AARNINK, W.; APFELSTEDT, I.
220       KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH, WEST GERMANY
300       1988 TOPICAL CONFERENCE ON HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS,
300       DEVICES AND APPLICATIONS OF THE AMERICAN VACUUM SOCIETY (AVS).
305       ATLANTA, GA, USA.  SEPT. 1988.  AMERICAN VACUUM SOC.
310       AIP CONF. PROC. (USA)
330       1988. NO.182, P.208-15, REF.12
350       ISSN 0094-243X, CODEN APCPCS
400       XPS LINES CHANGING WITH PHOTOELECTRON TAKE-OFF ANGLE ALLOW THE
400       SEPARATION OF DIFFERENT CHEMICAL SHIFTS BY A SIMULTANEOUS FIT. THIS
400       YIELDS THE IDENTIFICATION OF CHEMICAL COMPOUNDS, THEIR AMOUNT AND
400       THEIR SPATIAL DISTRIBUTION. SUCH AN ARXPS ANALYSIS IS CARRIED OUT FOR
400       HIGHLY TEXTURED UNSCRAPED SUPERCONDUCTING CUPRATE FILMS AND FRACTURED
400       SINTERED MATERIAL, WHICH ARE COATED BY REACTION CINDER. THE SPATIAL
400       SEPARATION OF THE CUPRATE AND THE THIN (<4 NM) CINDER YIELDS THE
400       STOICHIOMETRY OF THE BULK CUPRATE, THE CUPRATE 'SURFACE' BEING ABOUT
400       A UNIT CELL THICK (<1.2 NM), AND THE CINDER. THE XPS-SIGNATURE OF
400       C-AXIS TEXTURED YBA/SUB 2/CU/SUB 3/O/SUB X/ SURFACES SHOW A SPECIFIC
400       'SURFACE BA(BA-2)' ON THE CU-OXIDE AND Y-OXIDE LAYERS YIELDING AN
400       INTRINSICALLY INSULATING SURFACE LAYER ( APPROXIMATELY=1.2 NM). BELOW
400       THIS DEAD LAYER THE 'SUPERCONDUCTING BA(BA-1)' IS DIFFERENT FROM BA-2
400       AND INSULATING BA CUPRATES, WHEREAS Y DOES NOT SHOW SUCH A
400       DIFFERENCE. THESE XPS ASSIGNMENTS ARE USED TO FIT THE ARXPS DATA OF
400       FRACTURED OR POLISHED YBA/SUB 2/CU/SUB 3/O/SUB X/. THE RESULTS SHOW,
400       THAT FRACTURING OPENS INTER- AND INTRAGRAIN WEAK LINKS. THE AMOUNT OF
400       'SCHMUTZ', I.E. 'UNWANTED' MATTER SMUTTING THE SURFACE ON INTRAGRAIN
400       FRACTURES, IS SMALLER (<1 NM BACUO/SUB 2/?) THAN ON TEXTURED,
400       UNSCRAPED FILMS, I.E. ON GRAINS AND IS BY ARXPS CLEARLY SEPARABLE
400       FROM REACTION CINDER (Y/SUB 2/O/SUB 3/, Y/SUB 2/BACU . . ., =CO/SUB
400       3/, GRAPHITE) BETWEEN THE GRAINS. THESE RESULTS SHOW THE DIFFICULTY
400       IN MEASURING BULK CUPRATE PROPERTIES THROUGH THE CINDER AND THROUGH
400       THE SURFACE UNIT CELL, BUT EXPLAIN THE OBSERVED WEAK LINKS.
500       BARIUM COMPOUNDS; CHEMICAL SHIFT; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       STOICHIOMETRY; SUPERCONDUCTING THIN FILMS; X-RAY PHOTOELECTRON
500       SPECTRA; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; TEXTURED FILMS; POLYCRYSTALLINE;
510       XPS; CHEMICAL SHIFTS; ARXPS; FRACTURED SINTERED MATERIAL; REACTION
510       CINDER; STOICHIOMETRY; SURFACE; WEAK LINKS; INTRAGRAIN FRACTURES;
510       YBA/SUB 2/CU/SUB 3/O/SUB X/.
550       YBA2CU3O/SUR BA2/SUR CU3/SUR BA/SUR CU/SUR O/SUR Y/SUR YBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1915
 AUTH     = WIECKO
 DT       = 02
 KN       = B40891600810
 LG       = ENGL
 SN       = ISSN 0722-3277
 YR       = 89
000       3407801
002       B40891600810
010       JOURNAL PAPER; THEORETICAL.
100       MODELS FOR THE EFFECT OF DISORDER ON SUPERCONDUCTIVITY AND RELATIONS
100       WITH THE HIGH T/SUB C/ PROBLEM.
200       WIECKO, C.
220       CENTRO ATOMICO BARILOCHE, RIO NEGRO, ARGENTINA
310       Z. PHYS. B, CONDENS. MATTER (WEST GERMANY)
330       1989. VOL.75, NO.2, P.141-7, REF.15
350       ISSN 0722-3277, CODEN ZPCMDN
400       A NON-TRANSLATIONAL INVARIANT NORMAL HAMILTONIAN WITH LOCAL PAIRING
400       INTERACTION IN THE APPROXIMATION OF INFINITE INTERCONNECTION GIVES
400       EFFECTS OF AN INCREASE OF T/SUB C/ WITH DISORDER WHICH CAN BE RELATED
400       WITH EXPERIMENTS IN MULTICOMPONENT SYSTEMS SHOWING HIGH-T/SUB C/
400       PHENOMENON. NUMERICAL COMPARISON WITH THE HUBBARD MODEL STUDIES IS
400       ALSO MADE. FURTHERMORE, A DESCRIPTION WITH ELECTRONS AND PHONONS BOTH
400       LOCALIZED AND EXTENDED IS DERIVED. NUMERICAL EVALUATION WITH
400       REALISTIC PARAMETERS GIVES T/SUB CMAX/ APPROXIMATELY=15 T/SUB C/
400       (BCS).
500       HIGH-TEMPERATURE SUPERCONDUCTORS; LATTICE PHONONS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; MODELS; NONTRANSLATIONAL INVARIANT
510       NORMAL HAMILTONIAN; DISORDER; SUPERCONDUCTIVITY; HIGH T/SUB C/
510       PROBLEM; LOCAL PAIRING INTERACTION; MULTICOMPONENT SYSTEMS; HUBBARD
510       MODEL; ELECTRONS; PHONONS.

DOCUMENT=            1916
 AUTH     = OPPERMAN
 DT       = 02
 KN       = B40891600811
 LG       = ENGL
 SN       = ISSN 0722-3277
 YR       = 89
000       3407802
002       B40891600811
010       JOURNAL PAPER; THEORETICAL.
100       FUNCTIONAL INTEGRATION METHOD FOR THE HUBBARD MODEL WITH LARGE
100       NEGATIVE U AND OTHER LOCAL PAIRING MODELS.
200       OPPERMANN, R.
220       IBM RES. LAB., RUSCHLIKON, SWITZERLAND
310       Z. PHYS. B, CONDENS. MATTER (WEST GERMANY)
330       1989. VOL.75, NO.2, P.149-57, REF.17
350       ISSN 0722-3277, CODEN ZPCMDN
400       THE AUTHOR FORMULATES A CONSTRAINED FIELD THEORY AS A REPRESENTATION
400       OF THE HUBBARD MODEL WITH STRONG ATTRACTIVE ('NEGATIVE U') COUPLING.
400       THE SUPERCONDUCTING MEAN-FIELD SOLUTIONS ARE CORRECTLY REPRODUCED
400       AFTER UNUSUAL ANTIPERIODICITY CONDITIONS ON GRASSMAN FIELDS WERE
400       IMPOSED. IN THE EXACT ACTION HE FINDS A NEW DOUBLY-LOCAL SYMMETRY,
400       WHICH TOGETHER WITH ELITZUR'S THEOREM PREDICTS STRONG CORRECTIONS TO
400       MEAN FIELD APPROXIMATIONS BY QUANTUM FLUCTUATIONS. THE AUTHOR
400       COMPARES RESULTS FOR THE LARGE NEGATIVE U HUBBARD MODEL WITH THOSE
400       FOR OTHER LOCAL PAIRING MODELS, INCLUDING DISORDER TOO. A NEW
400       SUBCLASSIFICATION SCHEME OF TYPE II SUPERCONDUCTIVITY IS PROPOSED.
400       FOR DISORDERED MODELS, THE AUTHOR DISCUSSES IMPLICATIONS OF ELITZUR'S
400       THEOREM FOR THE EXISTENCE OF SUPERCONDUCTING GLASS PHASES.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; HUBBARD MODEL.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; HUBBARD MODEL; LARGE NEGATIVE U;
510       LOCAL PAIRING MODELS; CONSTRAINED FIELD THEORY; SUPERCONDUCTING
510       MEAN-FIELD SOLUTIONS; ANTIPERIODICITY CONDITIONS; GRASSMAN FIELDS;
510       DOUBLY-LOCAL SYMMETRY; ELITZUR'S THEOREM; QUANTUM FLUCTUATIONS;
510       SUBCLASSIFICATION SCHEME; TYPE II SUPERCONDUCTIVITY; DISORDERED
510       MODELS; SUPERCONDUCTING GLASS PHASES.

DOCUMENT=            1917
 AUTH     = BHARGAVA
 DT       = 02
 KN       = B40891600813
 LG       = ENGL
 SN       = ISSN 0167-577X
 YR       = 89
000       3407804
002       B40891600813
010       JOURNAL PAPER; EXPERIMENTAL.
100       ON THE STABILITY OF SUPERCONDUCTIVITY Y/SUB 1/BA/SUB 2/CUO/SUB 6+
100       DELTA / IN A BORATE GLASS-CERAMIC MATRIX.
200       BHARGAVA, A.; VARSHNEYA, A.K.; SNYDER, R.L.
220       INST. FOR CERAMIC SUPERCONDUCTIVITY, NEW YORK STATE COLL. OF
220       CERAMICS, ALFRED UNIV., NY, USA
310       MATER. LETT. (NETHERLANDS)
330       APRIL 1989. VOL.8, NO.1-2, P.41-5, REF.4
350       ISSN 0167-577X, CODEN MLETDJ
400       THE AUTHORS HAVE BEEN SUCCESSFUL IN FORMULATING A GLASS IN THE SYSTEM
400       Y/SUB 2/O/SUB 3/-BAO-CUO-B/SUB 2/O/SUB 3/ WHICH, UPON SUBSEQUENT
400       SUITABLE HEAT TREATMENT, PRECIPITATES SUPERCONDUCTING CRYSTALLITES OF
400       Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 6+ DELTA /. THE INTENT OF THE B/SUB
400       2/O/SUB 3/ ADDITION WAS TO CAUSE STABLE GLASS FORMATION ALLOWING
400       CONTROLLED CRYSTAL GROWTH RATE DURING THE SUBSEQUENT HEAT TREATMENT.
400       THIS WORK ESTABLISHES THAT A BORATE GLASS MATRIX WILL
400       THERMODYNAMICALLY SUPPORT THE SUPERCONDUCTING Y/SUB 1/BA/SUB 2/CU/SUB
400       3/O/SUB 6+ DELTA / PHASE. FURTHER WORK TO INCREASE ITS CONCENTRATION
400       SHOULD ALLOW FOR A HOST OF CONTINUOUS GLASS-FORMING PROCESSES TO BE
400       USED TO MAKE VIRTUALLY PORE-FREE, EXCEPTIONALLY STRONG BULK
400       SUPERCONDUCTOR PRODUCTS.
500       BARIUM COMPOUNDS; BORATE GLASSES; CERAMICS; CRYSTALLITES;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MATERIALS PREPARATION; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; STABILITY; BORATE GLASS-CERAMIC
510       MATRIX; HEAT TREATMENT; CRYSTALLITES; CRYSTAL GROWTH RATE; Y/SUB
510       1/BA/SUB 2/CUO/SUB 6+ DELTA /; Y/SUB 2/O/SUB 3/-BAO-CUO-B/SUB 2/O/SUB
510       3/.
550       Y1BA2CUO/SS BA2/SS BA/SS CU/SS Y1/SS O/SS Y/SS; Y2O3BAOCUOB2O3/SS
550       B2O3/SS B2/SS BA/SS CU/SS O3/SS Y2/SS B/SS O/SS Y/SS.

DOCUMENT=            1918
 AUTH     = ZHANG
 DT       = 02
 KN       = B40891600814
 LG       = ENGL
 SN       = ISSN 0167-577X
 YR       = 89
000       3407805
002       B40891600814
010       JOURNAL PAPER; EXPERIMENTAL.
100       PREPARATION OF BI-SR-CA-CU-O SUPERCONDUCTORS BY LASER FLOATING ZONE
100       MELTING TECHNIQUE.
200       ZHANG, J.S.; HUANG, J.G.; JIANG, M.; GE, Y.L.; WANG, Y.Z.; QIAO,
200       G.W.; HU, Z.Q.
220       INST. OF METAL RES., ACAD. SINICA, SHENYANG, CHINA
310       MATER. LETT. (NETHERLANDS)
330       APRIL 1989. VOL.8, NO.1-2, P.46-8, REF.9
350       ISSN 0167-577X, CODEN MLETDJ
400       THE GROWTH OF CRYSTAL FIBERS OF BI-SR-CA-CU-O SUPERCONDUCTORS WITH
400       DIFFERENT NOMINAL COMPOSITIONS BY THE LASER FLOATING ZONE MELTING
400       TECHNIQUE HAS BEEN STUDIED. THE SEEDING AND FEEDING RODS FOR THE
400       PROCESS WERE PREPARED BY COMMON SOLID-STATE SINTERING. THE CRYSTALS
400       WERE GROWN WITH PULLING RATES AND TEMPERATURES OF THE MOLTEN ZONES IN
400       THE RANGES OF 0.17-10 MM/MIN AND 900-950 DEGREES C, RESPECTIVELY. THE
400       AS-GROWN CRYSTALS WERE 0.5-1.5 MM IN DIAMETER AND SHOW HIGH DENSITIES
400       AND ALIGNED STRUCTURES WITH THE A-B PLANES PARALLEL TO THE GROWTH
400       AXIS, WHICH WOULD BE GREATLY HELPFUL IN REDUCING THE WEAK LINKS
400       BETWEEN GRAIN BOUNDARIES AND THUS ENHANCE TRANSPORT CRITICAL CURRENT
400       DENSITY. IT WAS FOUND THAT AFTER A SUITABLE POST-HEAT-TREATMENT (E.G.
400       860 DEGREES C/10 H+FURNACE COOLING), THE SAMPLES WITH NOMINAL
400       COMPOSITION BISRCACU/SUB 2/O/SUB Y/ GAVE A SUPERCONDUCTING TRANSITION
400       TEMPERATURE OF 85 K (T/SUB C,ZERO/) AND A RATHER HIGH TRANSPORT
400       CRITICAL CURRENT DENSITY OF 1800 A/CM/SUP 2/ AT 77 K AND ZERO FIELD.
400       THESE SAMPLES WERE ALSO CHARACTERIZED BY X-RAY DIFFRACTION, OPTICAL
400       AND SCANNING ELECTRON MICROSCOPIES AND ELECTRON PROBE.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); HIGH-TEMPERATURE SUPERCONDUCTORS; STRONTIUM
500       COMPOUNDS; SUPERCONDUCTING TRANSITION TEMPERATURE; ZONE MELTING.
510       HIGH TEMPERATURE SUPERCONDUCTOR; OPTICAL MICROSCOPY; LASER FLOATING
510       ZONE MELTING TECHNIQUE; CRYSTAL FIBERS; SOLID-STATE SINTERING;
510       PULLING RATES; DENSITIES; ALIGNED STRUCTURES; WEAK LINKS; GRAIN
510       BOUNDARIES; CRITICAL CURRENT DENSITY; POST-HEAT-TREATMENT;
510       SUPERCONDUCTING TRANSITION TEMPERATURE; X-RAY DIFFRACTION; SCANNING
510       ELECTRON MICROSCOPIES; ELECTRON PROBE; 900 TO 950 DEGC; 85 K;
510       BI-SR-CA-CU-O.
550       BISRCACUO/SS BI/SS CA/SS CU/SS SR/SS O/SS.
560       TEMPERATURE 1.17 E+03 TO 1.22 E+03 K; TEMPERATURE 8.5 E+01 K.

DOCUMENT=            1919
 AUTH     = WILLIAMS
 DT       = 02
 KN       = B40891600815
 LG       = ENGL
 SN       = ISSN 0167-577X
 YR       = 89
000       3407806
002       B40891600815
010       JOURNAL PAPER; EXPERIMENTAL.
100       HETEROEPITAXY OF YBA/SUB 2/CU/SUB 3/O/SUB 7/ THIN FILMS ON (100)
100       CUBIC ZIRCONIA.
200       WILLIAMS, M.D. / LOWE, W.P.; STRAUGHN, B.; MACHARRIE, R.; MANKIEWICH,
200       P.M.; HOWARD, R.E.
220       AT?T BELL LABS., HOLMDEL, NJ, USA
310       MATER. LETT. (NETHERLANDS)
330       APRIL 1989. VOL.8, NO.1-2, P.49-52, REF.13
350       ISSN 0167-577X, CODEN MLETDJ
400       THE AUTHORS HAVE ACHIEVED CONSIDERABLE SUCCESS IN INDUCING ORDER INTO
400       THE GROWTH OF YBA/SUB 2/CU/SUB 3/O/SUB 7/ THIN FILMS ON (100)
400       ORIENTED SINGLE-CRYSTAL ZIRCONIA SUBSTRATES. BY APPLYING
400       HETEROEPITAXIAL GROWTH TECHNIQUES TO THE PREPARATION OF THE SUBSTRATE
400       MATERIAL THEY HAVE BEEN ABLE TO INCREASE THE AMOUNT OF TEXTURING IN
400       THESE FILMS. X-RAY DIFFRACTION STUDIES SHOW A THREE-FOLD DECREASE IN
400       THE WIDTH OF THE ROCKING CURVES OF THE FILMS AFTER MODIFICATION OF
400       THE SUBSTRATES. THE FILMS ARE ORIENTED WITH THE C AXIS PERPENDICULAR
400       TO THE SUBSTRATES.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING
500       EPITAXIAL LAYERS; X-RAY DIFFRACTION EXAMINATION OF MATERIALS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; (100) CUBIC ZIRCONIA;
510       HETEROEPITAXIAL GROWTH TECHNIQUES; PREPARATION; TEXTURING; X-RAY
510       DIFFRACTION; ROCKING CURVES; YBA/SUB 2/CU/SUB 3/O/SUB 7/ THIN FILMS;
510       ZRO/SUB 2/.
550       ZRO2/SUR O2/SUR ZR/SUR O/SUR ZRO2/BIN O2/BIN ZR/BIN O/BIN;
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1920
 AUTH     = WITANACH
 DT       = 02
 KN       = B40891600816
 LG       = ENGL
 SN       = ISSN 0167-577X
 YR       = 89
000       3407807
002       B40891600816
010       JOURNAL PAPER; EXPERIMENTAL.
100       LOW TEMPERATURE GROWTH OF MIRROR-LIKE SUPERCONDUCTING THIN FILMS ON
100       SAPPHIRE.
200       WITANACHCHI, S.; PATEL, S.; SHAW, D.T.; KWOK, H.S.
220       STATE UNIV. OF NEW YORK, BUFFALO, NY, USA
310       MATER. LETT. (NETHERLANDS)
330       APRIL 1989. VOL.8, NO.1-2, P.53-6, REF.12
350       ISSN 0167-577X, CODEN MLETDJ
400       THE RECENTLY DEVELOPED PROCESS OF PLASMA-ASSISTED LASER DEPOSITION
400       WAS USED TO GROW HIGH-QUALITY, MIRROR-LIKE SUPERCONDUCTING Y-BA-CU-O
400       FILMS ON SAPPHIRE, BOTH WITH AND WITHOUT A BUFFER LAYER. AT A
400       DEPOSITION TEMPERATURE OF 400 DEGREES C, THE AS-DEPOSITED Y-BA-CU-O
400       FILM ON MGO/AL/SUB 2/O/SUB 3/ AND AG/AL/SUB 2/O/SUB 3/ AND AL/SUB
400       2/O/SUB 3/ SUBSTRATES WAS SUPERCONDUCTING AT APPROXIMATELY=75 K. THE
400       ORIENTATION OF THE FILM AND THE CRITICAL CURRENT BOTH DEPENDED ON THE
400       PRESENCE OF THE BUFFER LAYER. AFTER SUITABLE PATTERNING, SUCH FILMS
400       SHOULD HAVE IMPORTANT APPLICATIONS IN MICROWAVE ELECTRONICS.
500       BARIUM COMPOUNDS; CRITICAL CURRENTS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; LASER BEAM APPLICATIONS; PLASMA DEPOSITION;
500       SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MIRROR-LIKE SUPERCONDUCTING THIN
510       FILMS; SAPPHIRE; PLASMA-ASSISTED LASER DEPOSITION; BUFFER LAYER;
510       ORIENTATION; CRITICAL CURRENT; PATTERNING; MICROWAVE ELECTRONICS; 400
510       DEGC; 75 K; Y-BA-CU-O; AL/SUB 2/O/SUB 3/ SUBSTRATES; MGO-AL/SUB
510       2/O/SUB 3/; AG-AL/SUB 2/O/SUB 3/.
550       MGO-AL2O3/INT AL2O3/INT AL2/INT MGO/INT AL/INT MG/INT O3/INT O/INT
550       AL2O3/BIN AL2/BIN MGO/BIN AL/BIN MG/BIN O3/BIN O/BIN; AG-AL2O3/INT
550       AL2O3/INT AL2/INT AG/INT AL/INT O3/INT O/INT AL2O3/BIN AL2/BIN AL/BIN
550       O3/BIN O/BIN AG/EL; YBACUO/SS BA/SS CU/SS O/SS Y/SS; AL2O3/SUR
550       AL2/SUR AL/SUR O3/SUR O/SUR AL2O3/BIN AL2/BIN AL/BIN O3/BIN O/BIN.
560       TEMPERATURE 6.73 E+02 K; TEMPERATURE 7.5 E+01 K.

DOCUMENT=            1921
 AUTH     = SCHILLIN
 DT       = 02
 KN       = B40891600817
 LG       = ENGL
 SN       = ISSN 0167-577X
 YR       = 89
000       3407808
002       B40891600817
010       JOURNAL PAPER; THEORETICAL.
100       FERROELECTRICITY IN THE HIGH-T/SUB C/ SUPERCONDUCTOR Y-BA-CU-O AND
100       ITS INFLUENCE ON FLUX PINNING.
200       SCHILLING, O.F.
220       DEPT. OF METALL. ? SCI. OF MATER., OXFORD UNIV., UK
310       MATER. LETT. (NETHERLANDS)
330       APRIL 1989. VOL.8, NO.1-2, P.57-8, REF.11
350       ISSN 0167-577X, CODEN MLETDJ
400       IT WAS RECENTLY PROPOSED THAT THE HIGH-T/SUB C/ SUPERCONDUCTORS
400       TRANSFORM TO A FERROELECTRIC STATE PRIOR TO THE ONSET OF
400       SUPERCONDUCTIVITY. AN EXPRESSION IS PRESENTED FOR THE INTERACTION
400       ENERGY BETWEEN FLUX LINES AND FERROELECTRIC DOMAINS, DUE TO THEIR
400       POSSIBLE PIEZOELECTRIC PROPERTIES AND A QUALITATIVE COMPARISON IS
400       GIVEN OF THE EFFECTS OF THIS ADDITIONAL TERM WITH EXPERIMENTAL
400       RESULTS IN THE LITERATURE.
500       BARIUM COMPOUNDS; ELECTRIC DOMAINS; FERROELECTRICITY; FLUX PINNING;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PIEZOELECTRICITY; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; HIGH-T/SUB C/ SUPERCONDUCTOR; FLUX
510       PINNING; FERROELECTRIC STATE; INTERACTION ENERGY; FERROELECTRIC
510       DOMAINS; PIEZOELECTRIC PROPERTIES; Y-BA-CU-O.
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1922
 AUTH     = VERKOUTE
 DT       = 02
 KN       = B40891600818
 LG       = ENGL
 SN       = ISSN 0167-577X
 YR       = 89
000       3407809
002       B40891600818
010       JOURNAL PAPER; EXPERIMENTAL.
100       SEM ANALYSIS OF INTERACTIONS BETWEEN PT, AU, AND AGPD CAPSULES AND
100       BARIUM-YTTRIUM-COPPER SUPERCONDUCTORS.
200       VERKOUTEREN, J.R.
220       DIV. OF GAS ? PARTICULATE SCI., NAT. INST. OF STAND. ? TECHNOL.,
220       GAITHERSBURG, MD, USA
310       MATER. LETT. (NETHERLANDS)
330       APRIL 1989. VOL.8, NO.1-2, P.59-63, REF.12
350       ISSN 0167-577X, CODEN MLETDJ
400       QUANTITATIVE COMPOSITIONAL MAPS ARE USED TO DETERMINE THE NATURE AND
400       EXTENT OF CHEMICAL REACTIONS BETWEEN MELTED BAO-Y/SUB 2/O/SUB 3/-CUO
400       MATERIAL AND CAPSULES OF PT, AU, AND AG/SUB 70/PD/SUB 30/. ALL THREE
400       CAPSULE MATERIALS ARE REACTIVE WITH BARIUM-YTTRIUM-COPPER
400       SUPERCONDUCTOR COMPOSITIONS. THE EFFECT OF THE REACTIONS ON THE
400       RESULTS OF PHASE EQUILIBRIA EXPERIMENTS IS DISCUSSED.
500       BARIUM COMPOUNDS; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; GOLD;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PALLADIUM ALLOYS; PLATINUM;
500       SCANNING ELECTRON MICROSCOPE EXAMINATION OF MATERIALS; SILVER ALLOYS;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SEM ANALYSIS; CAPSULES;
510       COMPOSITIONAL MAPS; CHEMICAL REACTIONS; PHASE EQUILIBRIA EXPERIMENTS;
510       AGPD; PT; AU; BAO-Y/SUB 2/O/SUB 3/-CUO.
550       BAOY2O3CUO/SS BA/SS CU/SS O3/SS Y2/SS O/SS Y/SS; AGPD/BIN AG/BIN
550       PD/BIN; PT/EL; AU/EL.

DOCUMENT=            1923
 AUTH     = TSENG
 DT       = 02
 KN       = B40891600819
 LG       = ENGL
 SN       = ISSN 0167-577X
 YR       = 89
000       3407810
002       B40891600819
010       JOURNAL PAPER; EXPERIMENTAL.
100       SOME IMPROVEMENT IN THE T/SUB C/ OF BISMUTH-BASED SUPERCONDUCTING
100       COMPOUNDS.
200       TSENG, D.; RUCKENSTEIN, E.
220       DEPT. OF CHEM. ENG., STATE UNIV. OF NEW YORK, BUFFALO, NY, USA
310       MATER. LETT. (NETHERLANDS)
330       APRIL 1989. VOL.8, NO.1-2, P.69-70, REF.5
350       ISSN 0167-577X, CODEN MLETDJ
400       BI-BASED SUPERCONDUCTING COMPOUNDS HAVE BEEN PREPARED BY DOPING
400       BABIO/SUB 3/ WITH MIXTURES OF ALKALI CARBONATES AND BY CALCINING THE
400       PELLETS IN VACUUM AT 815 DEGREES C FOR 30 MIN AND 725 DEGREES C FOR
400       ANOTHER 30 MIN. THEN, THE PELLETS WERE CHARGED WITH OXYGEN AT 450
400       DEGREES C FOR 2-4 H AND THEREAFTER COOLED IN THE FURNACE TO ROOM
400       TEMPERATURE. A RESISTIVITY MEASURED T/SUB C/ OF 37 K WAS OBTAINED FOR
400       BA/SUB 0.6/K/SUB 0.3/RB/SUB 0.1/BIO/SUB X/. IN CONTRAST TO THE
400       COPPER-BASED COMPOUNDS, THE RESISTIVITY IN THE NORMAL STATE IS OF THE
400       HOPPING TYPE.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; POTASSIUM
500       COMPOUNDS; RUBIDIUM COMPOUNDS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE.
510       HIGH TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING TRANSITION
510       TEMPERATURE; HOPPING TYPE RESISTIVITY; DOPING; CALCINING;
510       RESISTIVITY; NORMAL STATE; 815 DEGC; 725 DEGC; 450 DEGC; 37 K; BA/SUB
510       0.6/K/SUB 0.3/RB/SUB 0.1/BIO/SUB X/.
550       BA0.6K0.3RB0.1BIO/SS BA0.6/SS RB0.1/SS K0.3/SS BA/SS BI/SS RB/SS K/SS
550       O/SS.
560       TEMPERATURE 1.09 E+03 K; TEMPERATURE 9.98 E+02 K; TEMPERATURE 7.23
560       E+02 K; TEMPERATURE 3.7 E+01 K.

DOCUMENT=            1924
 AUTH     = BHATT
 DT       = 02
 KN       = B40891600844
 LG       = ENGL
 SN       = ISSN 0144-8420
 YR       = 89
000       3407835
002       B40891600844
010       JOURNAL PAPER; EXPERIMENTAL.
100       COMPARATIVE DOSIMETRIC STUDIES OF THREE LIF TL PHOSPHORS.
200       BHATT, B.C.; SHINDE, S.S.; BHATT, R.C.
220       DIV. OF RADIOL. PROTECTION, BHABHA ATOMIC RES. CENTRE, BOMBAY, INDIA
310       RADIAT. PROT. DOSIM. (UK)
330       1989. VOL.27, NO.1, P.21-7, REF.9
350       ISSN 0144-8420, CODEN RPDODE
400       A COMPARATIVE DOSIMETRIC STUDY HAS BEEN DONE ON THREE LOW Z TL
400       PHOSPHORS: LIF TLD-100, LIF (MG, CU) AND LIF (MG, CU, P). THE MAIN TL
400       (DOSIMETRIC) PEAK OCCURS AT ALMOST THE SAME TEMPERATURE (
400       APPROXIMATELY 205 DEGREES C) IN ALL THESE PHOSPHORS. THE RELATIVE TL
400       SENSITIVITIES (PEAK HEIGHT METHOD) TO /SUP 60/CO GAMMA RAYS OF LIF
400       TLD-100, LIF (MG, CU) AND LIF (MG, CU, P) WERE FOUND TO BE 1, 3.3 AND
400       25.4 RESPECTIVELY. USING THE TLD READER SYSTEM, THE RESPECTIVE
400       MINIMUM MEASURABLE GAMMA RAY DOSES WERE ESTIMATED TO BE 51, 34 AND
400       4.6 MU GY. THE EFFECT OF DIFFERENT THERMAL TREATMENTS ON THE TL
400       SENSITIVITY WAS ALSO STUDIED.
500       COPPER; DOSIMETRY; GAMMA-RAYS; LITHIUM COMPOUNDS; MAGNESIUM;
500       PHOSPHORS; THERMOLUMINESCENCE.
510       DOSIMETRY; TL PHOSPHORS; TLD READER SYSTEM; GAMMA RAY DOSES; TL
510       SENSITIVITY; 205 DEGC; 51 MUGY; 34 MUGY; 4.6 MUGY; /SUP 60/CO; LIF;
510       LIF:MG, CU; LIF:MG, CU, P.
550       LIF/BIN LI/BIN F/BIN; LIF:MG,CU/SS CU/SS LI/SS MG/SS F/SS LIF/BIN
550       LI/BIN F/BIN CU/EL MG/EL CU/DOP MG/DOP; LIF:MG,CU,P/SS CU/SS LI/SS
550       MG/SS F/SS P/SS LIF/BIN LI/BIN F/BIN CU/EL MG/EL P/EL CU/DOP MG/DOP
550       P/DOP; CO/EL.
560       TEMPERATURE 4.78 E+02 K; RADIATION ABSORBED DOSE 5.1 E-05 GY;
560       RADIATION ABSORBED DOSE 3.4 E-05 GY; RADIATION ABSORBED DOSE 4.6 E-06
560       GY.

DOCUMENT=            1925
 AUTH     = CHANG
 DT       = 02
 KN       = B40891600918
 LG       = ENGL
 SN       = ISSN 0577-9073
 YR       = 88
000       3407909
002       B40891600918
010       JOURNAL PAPER; EXPERIMENTAL.
100       PREPARATION OF SOME HIGH T/SUB C/ SUPERCONDUCTING THIN FILMS BY DC
100       SPUTTERING.
200       CHANG, H.L.; WANG, C.; CHU, M.L.; HSU, F.W. / CHEN, T.M.; YANG, T.J.;
200       GOU, Y.S.; UEN, T.M.
220       INST. OF ELECTRO-OPT. ENG., NAT. CHIAO TUNG UNIV., HSINCHU, TAIWAN
310       CHIN. J. PHYS. (TAIWAN)
330       OCT. 1988. VOL.26, NO.4, P.233-4, REF.5
350       ISSN 0577-9073, CODEN CJOPAW
400       SINCE THE DISCOVERY OF HIGH T/SUB C/ OXIDE SUPERCONDUCTORS, THERE
400       HAVE BEEN BOTH ENORMOUS INTEREST AND MUCH EFFORT TO DEVELOP
400       SUPERCONDUCTING THIN FILMS FOR BOTH FUNDAMENTAL RESEARCH AND POSSIBLE
400       MICROELECTRONIC APPLICATIONS. THE AUTHORS REPORT THE SUCCESSFUL
400       PREPARATION OF YBACUO, BICASRCUO, AND TLCABACUO FILMS ON (100) MGO OR
400       (100) YTTRIUM-STABILIZED ZRO/SUB 2/ (YSZ) SUBSTRATES BY DC SPUTTERING
400       WITH A SINGLE TARGET.
500       BISMUTH COMPOUNDS; SPUTTER DEPOSITION; SUPERCONDUCTING THIN FILMS;
500       THALLIUM COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; HIGH T/SUB C/ SUPERCONDUCTING THIN
510       FILMS; DC SPUTTERING; YBACUO; BICASRCUO; TLCABACUO; MGO; ZRO/SUB
510       2/:Y.
550       MGO/SUR MG/SUR O/SUR MGO/BIN MG/BIN O/BIN; ZRO2:Y/SUR ZRO2/SUR O2/SUR
550       ZR/SUR O/SUR Y/SUR ZRO2:Y/SS O2/SS ZR/SS O/SS Y/SS ZRO2/BIN O2/BIN
550       ZR/BIN O/BIN Y/EL Y/DOP; YBACUO/SS BA/SS CU/SS O/SS Y/SS;
550       BICASRCUO/SS BI/SS CA/SS CU/SS SR/SS O/SS; TLCABACUO/SS BA/SS CA/SS
550       CU/SS TL/SS O/SS.

DOCUMENT=            1926
 AUTH     = CHOU
 DT       = 02
 KN       = B40891600920
 LG       = ENGL
 SN       = ISSN 0577-9073
 YR       = 88
000       3407911
002       B40891600920
010       JOURNAL PAPER; EXPERIMENTAL.
100       PHOTOEMISSION STUDIES OF THE AG-ADDED Y-BA-CU-O SUPERCONDUCTORS.
200       CHOU, Y.C.; LIANG, N.T.; KUO, C.S.; CHEN, T.T.
220       DEPT. OF PHYS., NATIONAL TSING HUA UNIV., HSINCHU, TAIWAN
310       CHIN. J. PHYS. (TAIWAN)
330       DEC. 1988. VOL.26, NO.5, P.247-53, REF.16
350       ISSN 0577-9073, CODEN CJOPAW
400       X-RAY PHOTOELECTRON SPECTROSCOPY (XPS) RESULTS OF AG-ADDED Y/SUB
400       1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / SUPERCONDUCTORS ARE REPORTED.
400       THE RESISTIVITY MEASUREMENTS SHOW THAT ADDITION OF AG DECREASES T/SUB
400       C/ AND BROADENS THE TRANSITION REGION. THE O 1S CORE LEVEL XPS
400       SPECTRUM IS DOUBLY PEAKED; THE PEAK AT SMALLER BINDING ENERGY (528.6
400       EV) IS BELIEVED TO BE CLOSELY RELATED TO THE SUPERCONDUCTIVITY OF
400       Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
500       BARIUM COMPOUNDS; ELECTRICAL CONDUCTIVITY OF CRYSTALLINE
500       SEMICONDUCTORS AND INSULATORS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SILVER; SUPERCONDUCTING TRANSITION TEMPERATURE; X-RAY PHOTOELECTRON
500       SPECTRA; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; SUPERCONDUCTING TRANSITION
510       TEMPERATURE; TRANSITION REGION WIDTH; DOUBLE PEAKS; X-RAY
510       PHOTOELECTRON SPECTROSCOPY; RESISTIVITY; O 1S CORE LEVEL XPS
510       SPECTRUM; BINDING ENERGY; YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /:AG.
550       YBA2CU3O:AG/SS YBA2CU3O/SS BA2/SS CU3/SS AG/SS BA/SS CU/SS O/SS Y/SS
550       AG/EL AG/DOP.

DOCUMENT=            1927
 AUTH     = WANG
 DT       = 02
 KN       = B40891600921
 LG       = ENGL
 SN       = ISSN 0577-9073
 YR       = 88
000       3407912
002       B40891600921
010       JOURNAL PAPER; EXPERIMENTAL.
100       LATTICE SOFTENING AND ELECTRONIC INSTABILITIES AT SN SITES IN THE
100       SUPERCONDUCTOR DYBA/SUB 2/CU/SUB 2.85/SN/SUB 0.15/O/SUB 7-X/.
200       WANG, C.; CHEN, L.T.; CHU, M.L.; CHANG, H.L.; HSU, F.W. / GOU, Y.S.;
200       YANG, T.J.; UEN, T.M.
220       INST. OF ELECTRO-OPTICAL ENG., NATIONAL CHIAO TUNG UNIV., HSINCHU,
220       TAIWAN
310       CHIN. J. PHYS. (TAIWAN)
330       DEC. 1988. VOL.26, NO.5, P.262-9, REF.12
350       ISSN 0577-9073, CODEN CJOPAW
400       DETAILED /SUP 119/ MOSSBAUER EFFECT STUDIES ON THE SUPERCONDUCTOR
400       DYBA/SUB 2/CU/SUB 2.85/SN/SUB 0.15/O/SUB 7-X/ WERE CARRIED OUT IN THE
400       RANGE OF 14.5 <OR=T<OR= 295 K. THE TEMPERATURE DEPENDENCE OF
400       INTEGRATED INTENSITY F(T) PROVIDED AN EVIDENCE OF PHONON SOFTENING
400       NEAR 215 K. IT ALSO PROVIDED AN EVIDENCE OF STRONG CORRELATION
400       BETWEEN SUPERCONDUCTIVITY AND LATTICE ANHARMONICITY FOR T<OR=125 K.
400       THE FLUCTUATIONS OF THE CENTER SHIFT DELTA (T) INDICATED THAT, AS FAR
400       AS THE ELECTRON DENSITY AT TIN-SITES IS CONCERNED, THE SAMPLE HAS A
400       HIGH DEGREE OF INSTABILITY.
500       BARIUM COMPOUNDS; DYSPROSIUM COMPOUNDS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; MOSSBAUER EFFECT; SOFT MODES.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; ELECTRONIC INSTABILITIES; SN
510       SITES; /SUP 119/ MOSSBAUER EFFECT STUDIES; TEMPERATURE DEPENDENCE;
510       INTEGRATED INTENSITY; PHONON SOFTENING; STRONG CORRELATION; LATTICE
510       ANHARMONICITY; CENTER SHIFT; ELECTRON DENSITY; 14.5 TO 295 K;
510       DYBA/SUB 2/CU/SUB 2.85/SN/SUB 0.15/O/SUB 7-X/.
550       DYBA2CU2.85SN0.15O/SS CU2.85/SS SN0.15/SS BA2/SS BA/SS CU/SS DY/SS
550       SN/SS O/SS.
560       TEMPERATURE 1.45 E+01 TO 2.95 E+02 K.

DOCUMENT=            1928
 AUTH     = ABBATTIS
 DT       = 02
 KN       = B40891601522
 LG       = ENGL
 SN       = ISSN 0254-0584
 YR       = 89
000       3408513
002       B40891601522
010       JOURNAL PAPER; EXPERIMENTAL.
100       COMPREHENSIVE REVIEW OF THE BAO-Y/SUB 2/O/SUB 3/-CUO-O PHASE DIAGRAM.
200       ABBATTISTA, F.; VALLINO, M.; MAZZA, D.
220       DIPARTIMENTO DI SCIENZA, POLITECNICO DI TORINO, ITALY
310       MATER. CHEM. PHYS. (SWITZERLAND)
330       MAY 1989. VOL.21, NO.5, P.521-8
350       ISSN 0254-0584, CODEN MCHPDR
400       THE BARIUM OXIDE RICH PART OF THE BAO-Y/SUB 2/O/SUB 3/-CUO-O SYSTEM
400       WAS STUDIED UNDER CONTROLLED CONDITIONS IN ORDER TO AVOID THE
400       POLLUTION OF THE SAMPLES BY CO/SUB 3//SUP -/ IONS AND CONSEQUENT
400       FORMATION OF OXYCARBONATES. IN THE ZONE LIMITED BY BACUO/SUB 2+ DELTA
400       / BAO, BA/SUB 3/Y/SUB 4/O/SUB 9/ AND Y/SUB 2/BACUO/SUB 5/ ONLY THE
400       YBA/SUB 4/CU/SUB 3/O/SUB 9/ AND YBA/SUB 6/CU/SUB 3/O/SUB 11/ PHASES
400       ARE FOUND. THE FIRST HAS A PEROVSKITIC STRUCTURE WITH ORDERING OF Y
400       AND CU IN B SITES, WHILE THE SECOND HAS A LAYERED-PEROVSKITE
400       STRUCTURE OF THE SR/SUB 3/TI/SUB 2/O/SUB 7/-TYPE. THE PHASES YBA/SUB
400       3/CU/SUB 2/O/SUB 6.5+ DELTA /, YBA/SUB 8/CU/SUB 4/O/SUB 16+ DELTA /
400       AND Y/SUB 3/BA/SUB 8/CU/SUB 5/O/SUB 18/, THAT VARIOUS AUTHORS HAVE
400       ASSIGNED TO THIS SYSTEM, RESULTED IN THE FORMATION OF OXYCARBONATES
400       AND THEREFORE THEY DO NOT BELONG TO THE ABOVE SYSTEM.
500       BARIUM COMPOUNDS; CRYSTAL ATOMIC STRUCTURE OF INORGANIC COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; PHASE DIAGRAMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; Y ORDERING; CU ORDERING;
510       CONTROLLED CONDITIONS; PEROVSKITIC STRUCTURE; B SITES;
510       LAYERED-PEROVSKITE STRUCTURE; OXYCARBONATES; BAO-Y/SUB 2/O/SUB
510       3/-CUO-O PHASE DIAGRAM; BACUO/SUB 2+ DELTA /; BA/SUB 3/Y/SUB 4/O/SUB
510       9/; Y/SUB 2/BACUO/SUB 5/; YBA/SUB 4/CU/SUB 3/O/SUB 9/; YBA/SUB
510       6/CU/SUB 3/O/SUB 11/; BAO PHASE.
550       BAO/BIN BA/BIN O/BIN; BAOY2O3CUOO/SS BA/SS CU/SS O3/SS Y2/SS O/SS
550       Y/SS; BACUO/SS BA/SS CU/SS O/SS; BA3Y4O9/SS BA3/SS BA/SS O9/SS Y4/SS
550       O/SS Y/SS; Y2BACUO5/SS BA/SS CU/SS O5/SS Y2/SS O/SS Y/SS;
550       YBA4CU3O9/SS BA4/SS CU3/SS BA/SS CU/SS O9/SS O/SS Y/SS; YBA6CU3O11/SS
550       BA6/SS CU3/SS O11/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1929
 AUTH     = KURTZ
 DT       = 02
 KN       = B40891602160
 LG       = ENGL
 SN       = ISSN 0015-0193
 YR       = 88
000       3409151
002       B40891602160
010       JOURNAL PAPER; THEORETICAL.
100       STRUCTURAL PHASE TRANSITIONS, FERROELECTRICITY AND HIGH TEMPERATURE
100       SUPERCONDUCTIVITY.
200       KURTZ, S.K. / HARDY, J.R.; FLOCKEN, J.W.
220       MATER. RES. LAB., PENNSYLVANIA STATE UNIV., UNIVERSITY PARK, PA, USA
310       FERROELECTRICS (UK)
330       1988. VOL.87, P.29-40, REF.46
350       ISSN 0015-0193, CODEN FEROA8
400       CALCULATIONS BASED ON A LOCAL DOUBLE WELL POTENTIAL SHOW THE NEAR
400       COINCIDENCE OF A FERROELECTRIC TRANSITION AND A HIGH TEMPERATURE
400       SUPERCONDUCTING PHASE TRANSITION. USING DOUBLE WELL PARAMETERS
400       CONSISTENT WITH THE ABRAHAMS-KURTZ-JAMIESON (AKJ) RELATION FOR
400       FERROELECTRIC PHASE TRANSITIONS IN OXIDE PEROVSKITE FERROELECTRICS
400       THE AUTHORS FIND THAT THE SUPERCONDUCTING TRANSITION TEMPERATURE
400       FALLS ABOVE OR BELOW THE FERROELECTRIC TRANSITION TEMPERATURE
400       DEPENDING ON MODEST CHANGES IN THE HEIGHT OF THE UNRENORMALIZED
400       DOUBLE WELL BARRIER. FOR THE REBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
400       SUPERCONDUCTORS, THIS FERROELECTRIC TRANSITION APPEARS TO FALL ABOVE
400       THE SUPERCONDUCTING TRANSITION TEMPERATURE. THE SHALLOWNESS OF THE
400       DOUBLE-WELL IN THIS CASE IS CONSISTENT WITH THEIR PREVIOUS SUGGESTION
400       THAT THE REBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / ARE RELAXOR
400       FERROELECTRICS WITH A FERROELECTRIC TRANSITION TEMPERATURE THAT
400       DEPENDS ON THE SPECIFIC RARE EARTH AND A MORE OR LESS CONSTANT
400       SUPERCONDUCTING TRANSITION TEMPERATURE IN THE 90-100 DEGREES K
400       REGION. THIS RESULT HAS IMPORTANT IMPLICATIONS FOR THE PROCESSING AND
400       STABILITY OF THE PEROVSKITE OXIDES FOR SUPERCONDUCTING DEVICE
400       APPLICATIONS. A POSSIBLE CONNECTION BETWEEN THESE RESULTS AND VARIOUS
400       THEORETICAL MODELS OF SUPERCONDUCTIVITY IS DISCUSSED.
500       FERROELECTRIC MATERIALS; FERROELECTRIC TRANSITIONS; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; RARE EARTH COMPOUNDS; SUPERCONDUCTING TRANSITION
500       TEMPERATURE.
510       HIGH-TEMPERATURE SUPERCONDUCTORS; ABRAHAMS-KURTZ-JAMIESON RELATION;
510       RARE EARTH COMPOUNDS; LOCAL DOUBLE WELL POTENTIAL; FERROELECTRIC
510       TRANSITION; HIGH TEMPERATURE SUPERCONDUCTING PHASE TRANSITION; OXIDE
510       PEROVSKITE FERROELECTRICS; REBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /
510       SUPERCONDUCTORS; RELAXOR FERROELECTRICS; SUPERCONDUCTING TRANSITION
510       TEMPERATURE; 90 TO 100 K.
560       TEMPERATURE 9.0 E+01 TO 1.0 E+02 K.

DOCUMENT=            1930
 AUTH     = RAVINDRA
 DT       = 02
 KN       = B40891602170
 LG       = ENGL
 SN       = ISSN 0015-0193
 YR       = 88
000       3409161
002       B40891602170
010       JOURNAL PAPER; EXPERIMENTAL.
100       SOL-GEL PROCESS FOR THE PREPARATION OF FINE ELECTROCERAMIC POWDERS.
200       RAVINDRANATHAN, P.; KOMARNENI, S.; CHOI, S.C.; BHALLA, A.S.; ROY, R.
220       MATER. RES. LAB., PENNSYLVANIA STATE UNIV., UNIVERSITY PARK, PA, USA
310       FERROELECTRICS (UK)
330       1988. VOL.87, P.133-40, REF.24
350       ISSN 0015-0193, CODEN FEROA8
400       THE VERSATILITY OF SOL-GEL PROCESSING IN THE PREPARATION OF FINE
400       CERAMIC POWDERS HAS BEEN EXTENDED TO TECHNOLOGICALLY IMPORTANT
400       ELECTROCERAMIC POWDERS SUCH AS PB(MG/SUB 1/3/NB/SUB 2/3/)O/SUB 3/,
400       YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ AND FRESNOITE. FINE (<0.2 MU M) POWDERS
400       IN THESE SYSTEMS WERE OBTAINED AT TEMPERATURES AS LOW AS
400       APPROXIMATELY 750 DEGREES C THROUGH THE SOL-GEL PROCESSING.
500       CERAMICS; GELS; POWDER TECHNOLOGY; SOL-GEL PROCESSING; SOLS.
510       SOL-GEL PROCESSING; FINE CERAMIC POWDERS; ELECTROCERAMIC POWDERS;
510       PB(MG/SUB 1/3/NB/SUB 2/3/)O/SUB 3/; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       PBMGNBO3/SS NBO3/SS MG/SS NB/SS O3/SS PB/SS O/SS; YBA2CU3O/SS BA2/SS
550       CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1931
 AUTH     = ANDERS
 DT       = 02
 KN       = B40891602227
 LG       = RUSS
 SN       = ISSN 0132-6414
 YR       = 89
000       3409218
002       B40891602227
010       JOURNAL PAPER; EXPERIMENTAL.
100       OBSERVATION OF ANTIFERROMAGNETIC RESONANCE IN GDBA/SUB 2/CU/SUB
100       3/O/SUB X/.
200       ANDERS, A.G.; BORISENKO, V.G.; VOLOTSKY, S.V.; ZVYAGIN, A.I.; KOBETS,
200       M.I.; KOSMYNA, M.B.; PASHCHENKO, V.A.; PUZIKOV, V.M.; SEMINOZHENKO,
200       V.P.; STEPANOV, A.A.
310       FIZ. NIZK. TEMP. (UKRAINIAN SSR)
330       MARCH 1989. VOL.15, NO.3, P.328-32, REF.12. (IN RUSSIAN)
331       ENGLISH TRANSLATION: SOV. J. LOW TEMP. PHYS. (USA). CODEN SJLPDQ.
331       ISSN 0360-0335
350       ISSN 0132-6414, CODEN FNTEDK
400       THE FEATURES OF MAGNETORESONANCE ABSORPTION ARE INVESTIGATED ON
400       POLYCRYSTALLINE GDBA/SUB 2/CU/SUB 3/O/SUB X/ AT THE FREQUENCY NU /SUB
400       0/=37.35 GHZ NEAR THE NEEL TEMPERATURE, T/SUB N/=2.24 K. THE
400       TEMPERATURE DEPENDENCE OF THE RESONANCE LINE POSITION OBTAINED FOR
400       THE AFM PHASE PERMITS FINDING THE ENERGY SPECTRUM GAP AT ZERO
400       TEMPERATURE, IN /SUB 0/=39+OR-2 GHZ. IT IS SHOWN THAT THE EPR LINE
400       BROADENING IN THE PARAMAGNETIC PHASE CAN BE DESCRIBED USING THE
400       DEPENDENCE DELTA H APPROXIMATELY (T-T/SUB N/)/SUP -M/ AT M
400       APPROXIMATELY=0.25.
500       ANTIFERROMAGNETIC RESONANCE; GADOLINIUM COMPOUNDS; NEEL TEMPERATURE;
500       PARAMAGNETIC PROPERTIES OF SUBSTANCES; PARAMAGNETIC RESONANCE OF RARE
500       EARTH IONS AND IMPURITIES.
510       ANTIFERROMAGNETIC RESONANCE; MAGNETORESONANCE ABSORPTION; NEEL
510       TEMPERATURE; EPR LINE BROADENING; PARAMAGNETIC PHASE; GDBA/SUB
510       2/CU/SUB 3/O/SUB X/.
550       GDBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS GD/SS O/SS.

DOCUMENT=            1932
 AUTH     = ZOU
 DT       = 06
 KN       = B40891602590
 LG       = ENGL
 SN       = ISSN 0168-583X
 YR       = 89
000       3409581
002       B40891602590
010       CONFERENCE PAPER; REVIEW.
100       ION IMPLANTATION IN CHINA.
200       ZOU SHICHANG; LIU XIANGHUAI
220       ION BEAM LAB., SHANGHAI INST. OF METALL., ACAD. SINICA, CHINA
300       7TH INTERNATIONAL CONFERENCE ON ION IMPLANTATION TECHNOLOGY.
305       KYOTO, JAPAN.  7-10 JUNE 1988.  JAPAN SOC. APP. PHYS.. INST. ELECTR.
305       ENG. JAPAN. OKOCHI MEMORIAL FOUND.. IEE. ET AL.
310       NUCL. INSTRUM. METHODS PHYS. RES. B, BEAM INTERACT. MATER. AT.
310       (NETHERLANDS)
330       FEB. 1989. VOL.B37-38, P.672-5, REF.0
350       ISSN 0168-583X, CODEN NIMBEU
400       ION IMPLANTATION IN SILICON HAS BEEN WIDELY USED IN THE PRODUCTION OF
400       SEMICONDUCTOR DEVICES AND INTEGRATED CIRCUITS IN CHINA. RESEARCH OF
400       LOW ENERGY ION IMPLANTATION, HIGH ENERGY ION IMPLANTATION AND THE SOI
400       TECHNOLOGY IS IN PROGRESS. FULLY SI-IMPLANTED PLANAR GAAS DUAL-GATE
400       MESFETS, HIGH LINEAR GAAS HALL EFFECT SENSORS, LIGHT EMITTING DIODES,
400       LASER DEVICES, AND INFRARED DETECTORS MADE OF HGCDTE HAVE BEEN
400       FABRICATED BY ION IMPLANTATION AND HAVE BEEN APPLIED IN
400       TELECOMMUNICATION, TRANSPORTATION, MEDICINE, AND IN A GROUND
400       SATELLITE STATION. THE RESEARCH OF ION IMPLANTATION IN METALS BEGAN
400       IN 1978 IN CHINA. ION IMPLANTATION FOR IMPROVING WEAR, CORROSION,
400       OXIDATION, FATIGUE-RESISTANCE AND SECONDARY ELECTRON EMISSION
400       CHARACTERISTICS HAS PROGRESSED. THE ARTIFICIAL JOINTS TREATED BY ION
400       IMPLANTATION HAVE BEEN USED IN TRIAL MEDICAL TREATMENT. THIS FILMS OF
400       HIGH T/SUB C/ SUPERCONDUCTORS OF Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7/
400       WITH A ZERO RESISTANCE TEMPERATURE OF 86 K HAVE BEEN WORKED OUT WITH
400       REACTIVE ION BEAM COATING. RECENTLY, ION BEAM ENHANCED DEPOSITION HAS
400       BEEN USED TO SYNTHESIZE SI/SUB 3/N/SUB 4/ AND OTHER COMPOUND FILMS.
400       THE PROCESS OF ION BEAM ENHANCED DEPOSITION HAS BEEN STUDIED BY A
400       DYNAMIC ION IMPLANTATION MODEL AND MONTE CARLO COMPUTER SIMULATION.
400       IT WAS AT THE END OF THE 1960S THAT CHINA BEGAN TO WORK ON ION
400       IMPLANTATION. CHINA NOW HAS MORE THAN 80 UNITS INVOLVED IN THE FIELD
400       OF RESEARCH AND APPLICATION OF ION IMPLANTATION, INCLUDING SCIENTIFIC
400       RESEARCH INSTITUTES, UNIVERSITIES AND FACTORIES.
500       INTEGRATED CIRCUIT TECHNOLOGY; ION IMPLANTATION; SURFACE TREATMENT.
510       SUPERCONDUCTING THIN FILMS; SEMICONDUCTOR DEVICES; IC TECHNOLOGY;
510       CHINA; SEMICONDUCTOR DEVICES; INTEGRATED CIRCUITS; LOW ENERGY ION
510       IMPLANTATION; HIGH ENERGY ION IMPLANTATION; SOI TECHNOLOGY;
510       SI-IMPLANTED PLANAR GAAS DUAL-GATE MESFETS; HIGH LINEAR GAAS HALL
510       EFFECT SENSORS; LIGHT EMITTING DIODES; LASER DEVICES; INFRARED
510       DETECTORS; TELECOMMUNICATION; TRANSPORTATION; MEDICINE; WEAR;
510       CORROSION; OXIDATION; FATIGUE-RESISTANCE; SECONDARY ELECTRON EMISSION
510       CHARACTERISTICS; ARTIFICIAL JOINTS; HIGH T/SUB C/ SUPERCONDUCTORS;
510       REACTIVE ION BEAM COATING; ION BEAM ENHANCED DEPOSITION; MONTE CARLO
510       COMPUTER SIMULATION; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7/; SI/SUB
510       3/N/SUB 4/.
550       Y1BA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS Y1/SS O/SS Y/SS;
550       SI3N4/BIN SI3/BIN N4/BIN SI/BIN N/BIN.

DOCUMENT=            1933
 AUTH     = CHAPMAN
 DT       = 06
 KN       = B40891602674
 LG       = ENGL
 SN       = ISSN 0168-583X
 YR       = 89
000       3409665
002       B40891602674
010       CONFERENCE PAPER; NEW DEVELOPMENT, EXPERIMENTAL.
100       SPECIFIC-HEAT MEASUREMENTS ON HIGH-T/SUB C/ SUPERCONDUCTORS USING
100       ACCELERATED IONS AS THE HEAT PULSE.
200       CHAPMAN, I.V.; PRONKO, J.G.; BARDIN, T.T.; FISHER, T.R.; PEREZ, J.D.;
200       SENBETU, L.
220       LOCKHEED RES. ? DEV. DIV., PALO ALTO, CA, USA
300       TENTH INTERNATIONAL CONFERENCE ON THE APPLICATION OF ACCELERATORS IN
300       RESEARCH AND INDUSTRY.
305       DENTON, TX, USA.  7-9 NOV. 1988.
310       NUCL. INSTRUM. METHODS PHYS. RES. B, BEAM INTERACT. MATER. AT.
310       (NETHERLANDS)
330       APRIL 1989. VOL.B40-41, PT.2, P.1088-92, REF.6
350       ISSN 0168-583X, CODEN NIMBEU
400       A NEW TECHNIQUE TO MEASURE THE SPECIFIC HEAT (C/SUB P/) OF RELATIVELY
400       SMALL SAMPLES OF SUPERCONDUCTING MATERIALS WAS TESTED. THE METHOD
400       INVOLVES THE USE OF AN ION BEAM TO INPUT THE HEAT PULSE TO THE
400       SAMPLE. THIS METHOD OFFERS THE POTENTIAL ADVANTAGE OF USING A
400       KNOWN-HEAT INPUT PULSE WITH THE HEAT SOURCE PHYSICALLY DECOUPLED FROM
400       THE SAMPLE. DATA WERE OBTAINED FOR CU, BULK NONSUPERCONDUCTING AND
400       SUPERCONDUCTING Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB X/ SAMPLES.
400       EXPERIMENTALLY DETERMINED LIMITATIONS AND ADVANTAGES OF THIS
400       TECHNIQUE ARE PRESENTED. THE EXPERIMENTALLY MEASURED DATA FOR THE
400       SUPERCONDUCTING SAMPLE DISPLAYED THE EXPECTED DISCONTINUITY IN C/SUB
400       P/ AT THE TRANSITION TEMPERATURE. THE MAGNITUDE OF THIS DISCONTINUITY
400       IS COMPARED TO THE BCS MODEL PREDICTIONS.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; ION BEAM
500       APPLICATIONS; SPECIFIC HEAT OF SOLIDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; MEASUREMENTS; HEAT PULSE; SPECIFIC
510       HEAT; ION BEAM; TRANSITION TEMPERATURE; BCS MODEL; CU; Y/SUB 1/BA/SUB
510       2/CU/SUB 3/O/SUB X/.
550       CU/EL; Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1934
 AUTH     = BOURGAUL
 DT       = 02
 KN       = B40891602675
 LG       = ENGL
 SN       = ISSN 0168-583X
 YR       = 89
000       3409666
002       B40891602675
010       JOURNAL PAPER; EXPERIMENTAL.
100       3.5 GEV XENON ION IRRADIATION EFFECTS IN THE SUPERCONDUCTING OXIDE
100       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / ( DELTA <OR=0.1): A HREM
100       INVESTIGATION.
200       BOURGAULT, D.; HERVIEU, M.; BOUFFARD, S.; GROULT, D.; RAVEAU, B.
220       CRISMAT, CAEN, FRANCE
310       NUCL. INSTRUM. METHODS PHYS. RES. B, BEAM INTERACT. MATER. AT.
310       (NETHERLANDS)
330       MAY 1989. VOL.B42, NO.1, P.61-8, REF.33
350       ISSN 0168-583X, CODEN NIMBEU
400       POLYCRYSTALLINE SINTERS OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / (
400       DELTA <OR=0.1) SUPERCONDUCTOR HAVE BEEN IRRADIATED BY 3.5 GEV XE IONS
400       AND INVESTIGATED BY HIGH RESOLUTION ELECTRON MICROSCOPY (HREM).
400       DISCONTINUOUS TRACKS DUE TO THE HIGH ENERGY DENSITY DEPOSITED INTO
400       ELECTRONIC EXCITATION AND IONIZATION HAVE BEEN CHARACTERIZED. THEY
400       EXHIBIT A DOTTED MICROSTRUCTURE, SIMILARLY TO THAT PREVIOUSLY
400       DESCRIBED FOR MAGNETIC INSULATORS. SUCH TRACKS SEEM TO ACT AS CENTERS
400       OF NUCLEATION AND GROWTH OF DEFECTS THROUGH THE CU AND BAO LAYERS,
400       PERPENDICULARLY TO THE C AXIS, LEADING EITHER TO LOCAL CONTRAST
400       MODULATIONS WITH A DOUBLING OF THE 'A' PARAMETER OR TO THE
400       AMORPHIZATION OF THE SLICES WHEN A CRITICAL DENSITY OF DEFECTS IS
400       EXCEEDED. THE APPEARANCE OF THESE AMORPHOUS LAYERS SHOULD BE
400       RESPONSIBLE FOR THE RAPID T/SUB C/ DECREASE FOR FLUENCES HIGHER THAN
400       3*10/SUP 12/ XE/CM/SUP 2/.
500       AMORPHISATION; BARIUM COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL
500       MICROSTRUCTURE; ELECTRON MICROSCOPE EXAMINATION OF MATERIALS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; ION BEAM EFFECTS; LATTICE
500       CONSTANTS; NUCLEATION; SUPERCONDUCTING TRANSITION TEMPERATURE;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; CU LAYERS POLYCRYSTALLINE
510       SINTERS; DISCONTINUOUS TRACKS; NUCLEATION CENTRES; DEFECT GROWTH;
510       LATTICE CONSTANTS; SUPERCONDUCTING TRANSITION TEMPERATURE; ION
510       IRRADIATION EFFECTS; SUPERCONDUCTING OXIDE; HREM INVESTIGATION; HIGH
510       RESOLUTION ELECTRON MICROSCOPY; ELECTRONIC EXCITATION; IONIZATION;
510       DOTTED MICROSTRUCTURE; BAO LAYERS; LOCAL CONTRAST MODULATIONS;
510       AMORPHIZATION; CRITICAL DENSITY OF DEFECTS; AMORPHOUS LAYERS; YBA/SUB
510       2/CU/SUB 3/O/SUB 7- DELTA /; XE IONS.
550       XE/EL; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1935
 AUTH     = KUZMANN
 DT       = 02
 KN       = B40891602683
 LG       = ENGL
 SN       = ISSN 0236-5731
 YR       = 89
000       3409674
002       B40891602683
010       JOURNAL PAPER; EXPERIMENTAL.
100       COMPARATIVE MOSSBAUER STUDY OF HIGH T/SUB C/ SUPERCONDUCTORS.
200       KUZMANN, E.; HOMONNAY, Z.; VERTES, A. / HALASZ, I.; BANKUTI, J.;
200       KIRSCHNER, I.
220       LAB. OF NUCL. CHEM., EOTVOS UNIV., BUDAPEST, HUNGARY
310       J. RADIOANAL. NUCL. CHEM. LETT. (SWITZERLAND)
330       16 MARCH 1989. VOL.135, NO.5, P.373-80, REF.13
350       ISSN 0236-5731, CODEN JRNCDM
400       /SUP 151/EU, /SUP 119/SN AND /SUP 57/FE MOSSBAUER SPECTROSCOPY WAS
400       USED TO STUDY HIGH T/SUB C/ SUPERCONDUCTORS. MOSSBAUER SPECTRA OF SN
400       SUBSTITUTED EUBA/SUB 2/CU/SUB 3/O/SUB 7-Y/, YBA/SUB 2/CU/SUB 3/O/SUB
400       7-Y/ AND TLBACACUO/SUB 4.5+Y/ AS WELL AS OF FE SUBSTITUTED
400       TLBACACUO/SUB 4.5+Y/ WERE COMPARED. THE SN AND FE IONS REPLACE THE
400       REGULAR CU POSITIONS IN THE YBA/SUB 2/CU/SUB 3/O/SUB 7-Y/ AND IN
400       TLBACACUO/SUB 4.5+Y/ MATERIALS, RESPECTIVELY, WHILE THE LOCALIZATION
400       OF TIN ATOMS IN BOTH THE /SUP 119/SN DOPED EUBA/SUB 2/CU/SUB 3/O/SUB
400       7-Y/ AND TLBACACUO/SUB 4.5+Y/ SUPERCONDUCTORS IS DIFFERENT FROM THAT
400       OF PREVIOUS CASES. THIS IS THE FIRST PUBLICATION ON A MOSSBAUER STUDY
400       OF A TL-CONTAINING SUPERCONDUCTOR.
500       BARIUM COMPOUNDS; CALCIUM COMPOUNDS; EUROPIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; IRON; MOSSBAUER EFFECT; THALLIUM
500       COMPOUNDS; TIN; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; MOSSBAUER STUDY; REGULAR CU
510       POSITIONS; EUBA/SUB 2/CU/SUB 3/O/SUB 7-Y/:SN; YBA/SUB 2/CU/SUB
510       3/O/SUB 7-Y/:SN; TLBACACUO/SUB 4.5+Y/:SN; TLBACACUO/SUB 4.5-Y/:FE.
550       EUBA2CU3O:SN/SS EUBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS EU/SS SN/SS
550       O/SS SN/EL SN/DOP; YBA2CU3O:SN/SS YBA2CU3O/SS BA2/SS CU3/SS BA/SS
550       CU/SS SN/SS O/SS Y/SS SN/EL SN/DOP; TLBACACUO:SN/SS TLBACACUO/SS
550       BA/SS CA/SS CU/SS SN/SS TL/SS O/SS SN/EL SN/DOP; TLBACACUO:FE/SS
550       TLBACACUO/SS BA/SS CA/SS CU/SS FE/SS TL/SS O/SS FE/EL FE/DOP.

DOCUMENT=            1936
 AUTH     = XIA
 DT       = 02
 KN       = B40891602905
 LG       = ENGL
 SN       = ISSN 0256-307X
 YR       = 89
000       3409896
002       B40891602905
010       JOURNAL PAPER; EXPERIMENTAL.
100       PECULIAR PROPERTY OF SINGLE PHASE BI/SUB 3/PBCA/SUB 3/SR/SUB 3/CU/SUB
100       4/O/SUB Y/.
200       XIA JIANSHENG; CHEN ZUYAO; CAO LIEZHAO; HE ZHENUI; FANG MINGHU; CHEN
200       XIANHUI; QIAN YITAI; ZHANG QIRUI
220       UNIV. OF SCI. ? TECHNOL. OF CHINA, HEFEI, CHINA
310       CHIN. PHYS. LETT. (CHINA)
330       1989. VOL.6, NO.5, P.217-20, REF.7
350       ISSN 0256-307X, CODEN CPLEEU
400       THE R(H) AND J/SUB C/(T) OF SINGLE PHASE MATERIAL BI/SUB 3/PBCA/SUB
400       3/SR/SUB 3/CU/SUB 4/O/SUB Y/ WERE INVESTIGATED. AT TEMPERATURES BELOW
400       65 K, THE SAMPLE SHOWS THE CHARACTERISTICS OF HOMOGENEOUS
400       SUPERCONDUCTORS. VERY HIGH CRITICAL CURRENT DENSITY AND NO NEGATIVE
400       MAGNETORESISTANCE ARE OBSERVED. THIS DISTINCT PROPERTY DISTINGUISHES
400       THE NEW MATERIAL FROM OTHER CERAMIC SUPERCONDUCTORS.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CERAMICS; CRITICAL CURRENT
500       DENSITY (SUPERCONDUCTIVITY); HIGH-TEMPERATURE SUPERCONDUCTORS; LEAD
500       COMPOUNDS; MAGNETORESISTANCE; STRONTIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; HOMOGENEOUS SUPERCONDUCTORS; HIGH
510       CRITICAL CURRENT DENSITY; NEGATIVE MAGNETORESISTANCE; CERAMIC; SINGLE
510       PHASE BI/SUB 3/PBCA/SUB 3/SR/SUB 3/CU/SUB 4/O/SUB Y/.
550       BI3PBCA3SR3CU4O/SS BI3/SS CA3/SS CU4/SS SR3/SS BI/SS CA/SS CU/SS
550       PB/SS SR/SS O/SS.

DOCUMENT=            1937
 AUTH     = SASTRY
 DT       = 02
 KN       = B40891603240
 LG       = ENGL
 SN       = ISSN 0019-5669
 YR       = 88
000       3410231
002       B40891603240
010       JOURNAL PAPER; EXPERIMENTAL.
100       SYNTHESIS OF YBA/SUB 2/CU/SUB 3/O/SUB 7/ SUPERCONDUCTOR USING
100       LOW-GRADE Y/SUB 2/O/SUB 3/ (<OR=93%) CONCENTRATE.
200       SASTRY, P.V.P.S.S.; GOPALAKRISHNAN, I.K.; MISHRA, S.L.
220       BHABHA ATOMIC RES. CENTRE, BOMBAY, INDIA
310       INDIAN J. TECHNOL. (INDIA)
330       SEPT. 1988. VOL.26, NO.9, P.459-60, REF.4
350       ISSN 0019-5669, CODEN IJOTA8
400       A SIMPLE SOLVENT EXTRACTION METHOD FOR THE PREPARATION OF 93% PURE
400       YTTRIUM OXIDE (Y/SUB 2/O/SUB 3/) IS DESCRIBED. SYNTHESIS OF YBA/SUB
400       2/CU/SUB 3/O/SUB 7/ SUPERCONDUCTOR BY USING THIS 93% PURE Y/SUB
400       2/O/SUB 3/ IS REPORTED. SUPERCONDUCTING TRANSITION TEMPERATURE T/SUB
400       C/ AND TRANSPORT CRITICAL CURRENT DENSITY J/SUB C/ MEASURED ON THE
400       SUPERCONDUCTOR THUS PREPARED ARE COMPARABLE TO THOSE OF YBA/SUB
400       2/CU/SUB 3/O/SUB 7/ PREPARED FROM 99.95% PURE Y/SUB 2/O/SUB 3/.
500       BARIUM COMPOUNDS; CERAMICS; CRITICAL CURRENT DENSITY
500       (SUPERCONDUCTIVITY); HIGH-TEMPERATURE SUPERCONDUCTORS; MATERIALS
500       PREPARATION; SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTIVITY; SYNTHESIS; LOW GRADE Y/SUB
510       2/O/SUB 3/ CONCENTRATE; SUPERCONDUCTING TRANSITION TEMPERATURE;
510       SIMPLE SOLVENT EXTRACTION METHOD; PREPARATION; TRANSPORT CRITICAL
510       CURRENT DENSITY; YBA/SUB 2/CU/SUB 3/O/SUB 7/; Y/SUB 2/O/SUB 3/.
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS; Y2O3/BIN
550       O3/BIN Y2/BIN O/BIN Y/BIN.

DOCUMENT=            1938
 AUTH     = HASSENZA
 DT       = 06
 KN       = B40891603299
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410290
002       B40891603299
010       CONFERENCE PAPER; REVIEW, EXPERIMENTAL.
100       SUPERCONDUCTING MAGNETIC ENERGY STORAGE.
200       HASSENZAHL, W.
220       LAWRENCE BERKELEY LAB., CALIFORNIA UNIV., BERKELEY, CA, USA
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.750-8, REF.69
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHOR PRESENTS THE RATIONALE FOR ENERGY STORAGE ON UTILITY
400       SYSTEMS, DESCRIBES THE GENERAL TECHNOLOGY OF SMES (SUPERCONDUCTING
400       MAGNETIC ENERGY STORAGE), AND EXPLAINS THE CHRONOLOGICAL DEVELOPMENT
400       OF TECHNOLOGY. THE PRESENT ETM (ENGINEERING TEST MODEL) PROGRAM IS
400       OUTLINED. THE IMPACT OF HIGH-T/SUB C/ MATERIALS ON SMES IS DISCUSSED.
400       IT IS CONCLUDED THAT SMES IS MARGINALLY COMPETITIVE WITH OTHER
400       STORAGE TECHNOLOGIES AND IS LIKELY TO REMAIN SO.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING MAGNET ENERGY
500       STORAGE.
510       HTS; HIGH TEMPERATURE SUPERCONDUCTOR; RATIONALE; ENERGY STORAGE ON
510       UTILITY SYSTEMS; SMES; SUPERCONDUCTING MAGNETIC ENERGY STORAGE;
510       CHRONOLOGICAL DEVELOPMENT; ENGINEERING TEST MODEL; HIGH-T/SUB C/
510       MATERIALS; COMPETITIVE WITH OTHER STORAGE TECHNOLOGIES.

DOCUMENT=            1939
 AUTH     = ROWELL
 DT       = 06
 KN       = B40891603300
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410291
002       B40891603300
010       CONFERENCE PAPER; APPLICATIONS, REVIEW, EXPERIMENTAL.
100       THE STATUS, RECENT PROGRESS AND PROMISE OF SUPERCONDUCTING MATERIALS
100       FOR PRACTICAL APPLICATIONS.
200       ROWELL, J.M.
220       BELLCORE, RED BANK, NJ, USA
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.759-68, REF.0
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHOR SUMMARIZES THE PROGRESS IN MATERIALS SCIENCE AND
400       ENGINEERING THAT CREATED TODAY'S SUPERCONDUCTING TECHNOLOGY. HE
400       REVIEWS THE STATE OF THE TECHNOLOGY WITH CONVENTIONAL MATERIALS BY
400       LOOKING AT TWO PARTICULAR APPLICATIONS: LARGE-SCALE APPLICATIONS
400       INVOLVING CONDUCTORS, FOR EXAMPLE, MAGNETS; AND ELECTRONICS AND
400       INSTRUMENT APPLICATIONS. THE STATE-OF-THE ART IS CONTRASTED WITH THE
400       PRESENT UNDERSTANDING OF THE HIGH-T/SUB C/ OXIDE MATERIALS.
500       HIGH-TEMPERATURE SUPERCONDUCTORS; HISTORY; SUPERCONDUCTING MAGNETS.
510       MATERIALS ENGINEERING; HTS; HIGH TEMPERATURE SUPERCONDUCTORS;
510       SUPERCONDUCTING MAGNETS; STATUS; PROGRESS; PROMISE OF SUPERCONDUCTING
510       MATERIALS; PRACTICAL APPLICATIONS; PROGRESS IN MATERIALS SCIENCE;
510       SUPERCONDUCTING TECHNOLOGY; LARGE-SCALE APPLICATIONS INVOLVING
510       CONDUCTORS; ELECTRONICS; INSTRUMENT APPLICATIONS; STATE-OF-THE ART;
510       HIGH-T/SUB C/ OXIDE MATERIALS.

DOCUMENT=            1940
 AUTH     = AKOH
 DT       = 06
 KN       = B40891603303
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410294
002       B40891603303
010       CONFERENCE PAPER; PRACTICAL, EXPERIMENTAL.
100       FABRICATION OF S-N-S JOSEPHSON JUNCTIONS OF Y-BA-CU-O/AU/NB THIN FILM
100       SANDWICHES.
200       AKOH, H.; SHINOKI, F.; TAKAHASHI, M.; TAKADA, S.
220       ELECTROTECH. LAB., IBARAKI, JAPAN
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.795-8, REF.16
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHORS FABRICATED S-N-S (SUPERCONDUCTOR-NORMAL-SUPERCONDUCTOR)
400       JOSEPHSON JUNCTIONS WHICH CONSIST OF Y-BA-CU-O/AU/NB THIN-FILM
400       SANDWICHES WITH VARIOUS THICKNESSES OF THE AU BARRIER. DUE TO THE
400       AC-JOSEPHSON EFFECT, SHAPIRO STEPS ARE OBSERVED IN THE S-N-S
400       JUNCTIONS UNDER MICROWAVE RADIATION. THE MAGNETIC-FIELD DEPENDENCE OF
400       THE CRITICAL CURRENT SHOWS THAT THE JUNCTIONS BEHAVE AS
400       SELF-FIELD-LIMITED JOSEPHSON JUNCTIONS. FROM THE TEMPERATURE
400       DEPENDENCE OF THE CRITICAL CURRENT NEAR THE TRANSITION TEMPERATURE OF
400       THE JUNCTIONS, IT IS FOUND THAT THE THICKNESS OF THE AU BARRIER IS
400       SHORTER THAN THE COHERENCE LENGTH OF AU.
500       BARIUM COMPOUNDS; COHERENCE LENGTH; CRITICAL CURRENTS; GOLD;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT; NIOBIUM;
500       SUPERCONDUCTING TRANSITION TEMPERATURE; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; FABRICATION; AU BARRIER THICKNESS
510       EFFECTS; S-N-S JOSEPHSON JUNCTIONS;
510       SUPERCONDUCTOR-NORMAL-SUPERCONDUCTOR; AC-JOSEPHSON EFFECT; SHAPIRO
510       STEPS; S-N-S JUNCTIONS; MICROWAVE RADIATION; MAGNETIC-FIELD
510       DEPENDENCE; CRITICAL CURRENT; SELF-FIELD-LIMITED JOSEPHSON JUNCTIONS;
510       TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; COHERENCE LENGTH OF
510       AU; AU BARRIER; YBACUO-AU-NB THIN FILMS.
550       YBACUO-AU-NB/INT YBACUO/INT AU/INT BA/INT CU/INT NB/INT O/INT Y/INT
550       YBACUO/SS BA/SS CU/SS O/SS Y/SS AU/EL NB/EL; AU/INT AU/EL.

DOCUMENT=            1941
 AUTH     = NAKAYAMA
 DT       = 06
 KN       = B40891603304
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410295
002       B40891603304
010       CONFERENCE PAPER; EXPERIMENTAL.
100       Y-BA-CU-O/NB JOSEPHSON TUNNEL JUNCTIONS.
200       NAKAYAMA, A. / INOUE, A.; TAKEUCHI, K.; ITO, H.; OKABE, Y.
220       DEPT. OF ELECTR. ENG., KANAGAWA UNIV., YOKOHAMA, JAPAN
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.799-802, REF.8
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHORS FABRICATED Y-BA-CU-O/AU/ALO/SUB X//NB AND
400       Y-BA-CU-O/ALO/SUB X//NB JOSEPHSON TUNNEL JUNCTIONS USING
400       ELECTRON-BEAM EVAPORATION OF AL AND NB FILMS AND NATURAL OXIDATION.
400       SINTERED Y-BA-CU-O WAS USED AS THE BASE ELECTRODE. SUPERCONDUCTING
400       JOSEPHSON CURRENT AND HYSTERESIS OF THE CURRENT-VOLTAGE
400       CHARACTERISTICS, WHICH ARE TYPICAL FEATURES OF JOSEPHSON TUNNEL
400       JUNCTIONS, HAVE BEEN OBSERVED AT 4.2 K. RF-INDUCED VOLTAGE STEPS AT A
400       VOLTAGE GREATER THAN 0.4 MV HAVE BEEN CLEARLY OBSERVED, AND
400       RF-INDUCED SUBHARMONIC STEPS HAVE ALSO APPEARED. THE SUPERCONDUCTING
400       JOSEPHSON CURRENT WAS MODULATED BY THE MAGNETIC FIELD.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT;
500       MAGNETIC FIELD EFFECTS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; MAGNETIC FIELD MODULATED CURRENT;
510       I/V CURVES; ELECTRON-BEAM EVAPORATION; NATURAL OXIDATION; HYSTERESIS;
510       CURRENT-VOLTAGE CHARACTERISTICS; FEATURES; JOSEPHSON TUNNEL
510       JUNCTIONS; RF-INDUCED VOLTAGE STEPS; RF-INDUCED SUBHARMONIC STEPS;
510       SUPERCONDUCTING JOSEPHSON CURRENT; 4.2 K; 0.4 MV; YBACUO-AU-ALO/SUB
510       X/-NB JUNCTIONS; YBACUO-ALO/SUB X/-NB JUNCTIONS; SINTERED YBACUO.
550       YBACUO-AU-ALO-NB/INT YBACUO/INT ALO/INT AL/INT AU/INT BA/INT CU/INT
550       NB/INT O/INT Y/INT YBACUO/SS BA/SS CU/SS O/SS Y/SS ALO/BIN AL/BIN
550       O/BIN AU/EL NB/EL; YBACUO-ALO-NB/INT YBACUO/INT ALO/INT AL/INT BA/INT
550       CU/INT NB/INT O/INT Y/INT YBACUO/SS BA/SS CU/SS O/SS Y/SS ALO/BIN
550       AL/BIN O/BIN NB/EL; YBACUO/SUR BA/SUR CU/SUR O/SUR Y/SUR YBACUO/SS
550       BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 4.2 E+00 K; VOLTAGE 4.0 E-04 V.

DOCUMENT=            1942
 AUTH     = GAVALER
 DT       = 06
 KN       = B40891603305
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410296
002       B40891603305
010       CONFERENCE PAPER; EXPERIMENTAL.
100       OPTIMIZATION OF YBCO SURFACES OF TUNNEL JUNCTIONS.
200       GAVALER, J.R.; BRAGINSKI, A.I.; FORRESTER, M.G.; TALVACCHIO, J.;
200       GREGGI, J.
220       WESTINGHOUSE RES. ? DEV. CENTER, PITTSBURGH, PA, USA
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.803-5, REF.5
350       ISSN 0018-9464, CODEN IEMGAQ
400       IT IS ESTABLISHED THAT IN YBA/SUB 2/CU/SUB 3/O/SUB 7/ FILMS PREPARED
400       BY ANNEALING AMORPHOUS OXIDE DEPOSITS, BA SEGREGATION IN THE
400       AMORPHOUS PHASE AND YBCO DECOMPOSITION AFTER RECRYSTALLIZATION ARE
400       THE MAJOR CAUSES OF SURFACE DEGRADATION. THE AUTHORS HAVE GROWN FILMS
400       BY ENTIRELY IN-SITU PROCESSING IN WHICH THESE EFFECTS ARE MINIMIZED.
400       THE FILMS WERE EPITAXIALLY GROWN ON (100) SRTIO/SUB 3/ SUBSTRATES
400       WITH THE A-AXIS NORMAL TO THE FILM PLANE. BOTH STRUCTURAL AND
400       CHEMICAL ANALYSES INDICATED THAT THEY ARE HOMOGENEOUS AND HAVE PROPER
400       STOICHIOMETRY UP TO THEIR SURFACES. AT 4.2 K, CONTACT RESISTIVITIES
400       BELOW 4*10/SUP -10/ OHM-CM/SUP 2/ WERE OBTAINED WITH GOLD OVERLAYERS.
400       JUNCTIONS HAVE BEEN FORMED BY DEPOSITING THIN AU PROXIMITY LAYERS
400       OVER THE YBCO FILMS FOLLOWED BY MGO BARRIERS AND NB
400       COUNTERELECTRODES. IN SOME OF THE JUNCTIONS WEAK-LINK SHORTS WERE
400       OBSERVED, PROVIDING UNAMBIGUOUS EVIDENCE THAT THE GROWTH PROCEDURES
400       USED CAN PRODUCE FILMS THAT ARE SUPERCONDUCTING UP TO THEIR SURFACES.
500       ANNEALING; BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       SUPERCONDUCTING EPITAXIAL LAYERS; SUPERCONDUCTING JUNCTION DEVICES;
500       SUPERCONDUCTIVE TUNNELLING; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; EPITAXIAL LAYERS; SURFACE
510       OPTIMISATION; STRUCTURAL ANALYSIS; TUNNEL JUNCTIONS; ANNEALING
510       AMORPHOUS OXIDE DEPOSITS; AMORPHOUS PHASE; DECOMPOSITION AFTER
510       RECRYSTALLIZATION; CAUSES OF SURFACE DEGRADATION; IN-SITU PROCESSING;
510       CHEMICAL ANALYSES; STOICHIOMETRY; CONTACT RESISTIVITIES; AU PROXIMITY
510       LAYERS; WEAK-LINK SHORTS; 4.2 K; YBA/SUB 2/CU/SUB 3/O/SUB 7/ FILMS;
510       BA SEGREGATION; SRTIO/SUB 3/; MGO BARRIERS; SRTIO/SUB 3/-YBA/SUB
510       2/CU/SUB 3/O/SUB 7/-AU-MGO-NB.
550       SRTIO3-YBA2CU3O7-AU-MGO-NB/INT YBA2CU3O7/INT SRTIO3/INT TIO3/INT
550       BA2/INT CU3/INT MGO/INT AU/INT BA/INT CU/INT MG/INT NB/INT O3/INT
550       O7/INT SR/INT TI/INT O/INT Y/INT YBA2CU3O7/SS SRTIO3/SS TIO3/SS
550       BA2/SS CU3/SS BA/SS CU/SS O3/SS O7/SS SR/SS TI/SS O/SS Y/SS MGO/BIN
550       MG/BIN O/BIN AU/EL NB/EL; YBA2CU3O7/SUR BA2/SUR CU3/SUR BA/SUR CU/SUR
550       O7/SUR O/SUR Y/SUR YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS
550       Y/SS; BA/EL; SRTIO3/SUR TIO3/SUR O3/SUR SR/SUR TI/SUR O/SUR SRTIO3/SS
550       TIO3/SS O3/SS SR/SS TI/SS O/SS; MGO/INT MG/INT O/INT MGO/BIN MG/BIN
550       O/BIN.
560       TEMPERATURE 4.2 E+00 K.

DOCUMENT=            1943
 AUTH     = FERRARI
 DT       = 06
 KN       = B40891603306
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410297
002       B40891603306
010       CONFERENCE PAPER; EXPERIMENTAL.
100       FLUX NOISE AND FLUX CREEP IN YBCO THIN FILMS.
200       FERRARI, M.J.; JOHNSON, M.; WELLSTOOD, F.C.; CLARKE, J. / ROSENTHAL,
200       P.A.; HAMMOND, R.H.; BEASLEY, M.R.
220       DEPT. OF PHYS., CALIFORNIA UNIV., BERKELEY, CA, USA
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.806-9, REF.13
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHORS USED A DC SQUID (SUPERCONDUCTING QUANTUM INTERFERENCE
400       DEVICE) TO MEASURE THE LOW-FREQUENCY MAGNETIC FLUX NOISE PRODUCED BY
400       THIN-FILM RINGS OF YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA / (YBCO) WITH
400       VARIOUS MICROSTRUCTURES. BELOW THE TRANSITION TEMPERATURE T/SUB C/ OF
400       THE YBCO, THE SPECTRAL DENSITY OF THE NOISE SCALES AS 1/F (F IS THE
400       FREQUENCY) FROM 1 HZ TO 1 KHZ. THIS NOISE GENERALLY INCREASES WITH
400       TEMPERATURE AND VANISHES ABRUPTLY AT T/SUB C/. IMPROVEMENTS IN
400       CRYSTALLINE MICROSTRUCTURE GREATLY REDUCE THE MAGNITUDE OF THE NOISE,
400       WHICH WAS LOWEST FOR A HIGHLY ORIENTATED SAMPLE WITH ITS C-AXIS
400       PERPENDICULAR TO THE SUBSTRATE. MAKING A RADIAL CUT TO INTERRUPT
400       CURRENT PATHS AROUND THE SAMPLE RING DOES NOT SIGNIFICANTLY AFFECT
400       THE MAGNITUDE OF THE NOISE, DEMONSTRATING THAT THE NOISE ARISES FROM
400       A LOCAL MECHANISM SUCH AS THE THERMALLY ACTIVATED HOPPING OF FLUX
400       BUNDLES. FLUX CREEP WAS OBSERVED IN ONE SAMPLE COOLED IN A MAGNETIC
400       FIELD OF 1 MT, AND THE CREEP RATE EXHIBITED A SHARP MAXIMUM NEAR 80
400       K. IT IS CONCLUDED THAT SQUIDS AND FLUX TRANSFORMERS OF YBCO MUST BE
400       FABRICATED FROM HIGHLY ORIENTATED FILMS TO OBTAIN LOW NOISE AT LOW
400       FREQUENCIES.
500       BARIUM COMPOUNDS; CRYSTAL MICROSTRUCTURE; CRYSTAL ORIENTATION; FLUX
500       CREEP; HIGH-TEMPERATURE SUPERCONDUCTORS; NOISE MEASUREMENT; RANDOM
500       NOISE; SQUIDS; SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; 1/F NOISE; PERPENDICULAR C-AXIS;
510       FLUX NOISE; FLUX CREEP; DC SQUID; SUPERCONDUCTING QUANTUM
510       INTERFERENCE DEVICE; LOW-FREQUENCY MAGNETIC FLUX NOISE; THIN-FILM
510       RINGS; MICROSTRUCTURES; TRANSITION TEMPERATURE; SPECTRAL DENSITY;
510       CRYSTALLINE MICROSTRUCTURE; HIGHLY ORIENTATED SAMPLE; THERMALLY
510       ACTIVATED HOPPING OF FLUX BUNDLES; CREEP RATE; FLUX TRANSFORMERS;
510       HIGHLY ORIENTATED FILMS; LOW NOISE AT LOW FREQUENCIES; 1 TO 1000 HZ;
510       YBA/SUB 2/CU/SUB 3/O/SUB 7- DELTA /.
550       YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       FREQUENCY 1.0 E+00 TO 1.0 E+03 HZ.

DOCUMENT=            1944
 AUTH     = HYLTON
 DT       = 06
 KN       = B40891603307
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410298
002       B40891603307
010       CONFERENCE PAPER; THEORETICAL, EXPERIMENTAL.
100       SURFACE IMPEDANCE STUDIES OF THE HIGH-T/SUB C/ OXIDE SUPERCONDUCTORS.
200       HYLTON, T.L.; BEASLEY, M.R.; KAPITULNIK, A. / CARINI, J.P.; DRABECK,
200       L.; GRUNNER, G.
220       DEPT. OF APPL. PHYS., STANFORD UNIV., CA, USA
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.810-13, REF.9
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHORS BRIEFLY REVIEW RESULTS OF MEASUREMENTS OF THE
400       MULTIMETER-WAVE SURFACE IMPEDANCE OF CERAMIC, THIN-FILM AND
400       SINGLE-CRYSTAL SAMPLES OF THE HIGH-T/SUB C/ OXIDE SUPERCONDUCTORS.
400       THE OBSERVED LOSSES AND TEMPERATURE DEPENDENCES DO NOT AGREE WITH BCS
400       (BARDEEN-COOPER-SCHRIEFER) THEORY. THE AUTHORS DISCUSS RECENT
400       MEASUREMENTS OF SINGLE-CRYSTAL B/SUB 2/CASR/SUB 2/CU/SUB 2/O/SUB X/
400       AND THE EFFECT OF THE APPLICATION OF A PERPENDICULAR MAGNETIC FIELD.
400       THEY CONSIDER THE POSSIBILITIES OF INTRINSIC AND DEFECT MECHANISMS TO
400       EXPLAIN THE OBSERVATIONS. IN PARTICULAR, THEY DISCUSS THE EFFECTS OF
400       WEAKLY COUPLED GRANULAR FILMS ON SURFACE IMPEDANCE. IT IS CONCLUDED
400       THAT BETTER SAMPLES ARE NECESSARY TO RESOLVE THE ISSUE OF THE SOURCE
400       OF THE LARGE VALUES OF THE SURFACE IMPEDANCE OBSERVED THUS FAR.
500       BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; ELECTRIC IMPEDANCE MEASUREMENT;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MICROWAVE MEASUREMENT; STRONTIUM
500       COMPOUNDS; SUPERCONDUCTING THIN FILMS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; EHF; CERAMIC SAMPLES; INTRINSIC
510       MECHANISMS; THIN FILM SAMPLES; BARDEEN COOPER SCHRIEFER THEORY;
510       SURFACE IMPEDANCE MEASUREMENT; BCS THEORY; HIGH-T/SUB C/ OXIDE
510       SUPERCONDUCTORS; MULTIMETER-WAVE SURFACE IMPEDANCE; SINGLE-CRYSTAL
510       SAMPLES; LOSSES; TEMPERATURE DEPENDENCES; DEFECT MECHANISMS; EFFECTS
510       OF WEAKLY COUPLED GRANULAR FILMS; SURFACE IMPEDANCE; B/SUB 2/CASR/SUB
510       2/CU/SUB 2/O/SUB X/.
550       B2CASR2CU2O/SUR CU2/SUR SR2/SUR B2/SUR CA/SUR CU/SUR SR/SUR B/SUR
550       O/SUR B2CASR2CU2O/SS CU2/SS SR2/SS B2/SS CA/SS CU/SS SR/SS B/SS O/SS.

DOCUMENT=            1945
 AUTH     = CHWALEK
 DT       = 06
 KN       = B40891603308
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410299
002       B40891603308
010       CONFERENCE PAPER; THEORETICAL.
100       ULTRAFAST RESPONSE OF SUPERCONDUCTING TRANSMISSION LINES.
200       CHWALEK, J.M.; DYKAAR, D.R.; WHITAKER, J.F.; SOBOLEWSKI, R.; GUPTA,
200       S.; HSIANG, T.Y.; MOUROU, G.A.
220       ROCHESTER UNIV., NY, USA
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.814-17, REF.7
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHORS REPORT INVESTIGATIONS OF PICOSECOND TRANSIENT PROPAGATION
400       ON NORMAL AND SUPERCONDUCTING TRANSMISSION LINES AND RESULTS OF A
400       VARIETY OF LINES THAT INCLUDE YBA/SUB 2/CU/SUB 3/O/SUB 7-X/ (YBCO)
400       COPLANAR LINES, A SUPERCONDUCTING COAXIAL CABLE, AND A
400       DIELECTRIC-MATCHED GOLD-LINE STRUCTURE. A PREVIOUSLY DEVELOPED
400       ALGORITHM FOR ANALYZING TRANSIENT PROPAGATION WAS USED TO IDENTIFY
400       THE DOMINANT MECHANISMS FOR SIGNAL DISTORTION IN MOST OF THESE CASES,
400       AND THE ESSENTIAL PROPERTIES OF ALL TESTED TO DATE ARE SUMMARIZED FOR
400       A DIRECT COMPARISON.
500       BARIUM COMPOUNDS; CIRCUIT ANALYSIS COMPUTING; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; TRANSMISSION LINES; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; ULTRAFAST RESPONSE; NORMAL
510       TRANSMISSION LINES; SUPERCONDUCTING TRANSMISSION LINES; PICOSECOND
510       TRANSIENT PROPAGATION; COPLANAR LINES; SUPERCONDUCTING COAXIAL CABLE;
510       MECHANISMS FOR SIGNAL DISTORTION; YBA/SUB 2/CU/SUB 3/O/SUB 7-X/;
510       DIELECTRIC MATCHED AU LINE.
550       AU/EL; YBA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1946
 AUTH     = ZHANG
 DT       = 06
 KN       = B40891603313
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410304
002       B40891603313
010       CONFERENCE PAPER; PRACTICAL, EXPERIMENTAL.
100       PREPARATION AND PERFORMANCE OF TOROIDAL Y/SUB 1/BA/SUB 2/CU/SUB
100       3/O/SUB 7-X/-RF SQUIDS.
200       ZHANG, Y.; DIEGEL, M. / HEIDEN, C.
220       INST. FUER ANGEWANDTE PHYS., JUSTUS-LIEBIG-UNIV., GIESSEN, WEST
220       GERMANY
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.869-71, REF.6
350       ISSN 0018-9464, CODEN IEMGAQ
400       STARTING FROM DISK-SHAPED BULK SPECIMENS OF Y/SUB 1/BA/SUB 2/CU/SUB
400       3/O/SUB 7-X/ WITH T/SUB C/ NEAR 90 K, RF SQUIDS (SUPERCONDUCTING
400       QUANTUM INTERFERENCE DEVICES) TO TOROIDAL TOPOLOGY WITH A PERMANENTLY
400       ADJUSTED MILL-BRIDGE CONTACT WERE PREPARED. CONTACT TRIMMING WAS DONE
400       BY REDUCING THE CROSS SECTION SO THAT A GOOD SQUID SIGNAL WAS
400       OBTAINED AT 77 K. THE SQUIDS WERE SEALED AFTER THE ADJUSTMENT IN
400       ORDER TO PREVENT DEGRADATION BY MOISTURE. USING CONVENTIONAL 20-MHZ
400       READOUT ELECTRONICS THE SQUIDS WERE OPERATED IN THE FLUX-LOCKED LOOP
400       MODE. FLUX NOISE OF THE ORDER OF 10/SUP -4/ PHI /SUB 0// SQUARE ROOT
400       HZ WAS OBTAINED AT 77 K IN THE WHITE REGION OF THE SPECTRUM, WITH
400       EXCESS NOISE BELOW ABOUT 100 HZ. THE DEVICES ARE QUITE ROBUST DUE TO
400       THEIR MONOLITHIC STRUCTURE AND DEMONSTRATE GOOD STABILITY AGAINST
400       THERMAL CYCLING.
500       BARIUM COMPOUNDS; ELECTRON DEVICE NOISE; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; SQUIDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CONTACT TRIMMING; FLUX NOISE;
510       THERMAL CYCLING STABILITY; RF SQUIDS; TOROIDAL TOPOLOGY; PERMANENTLY
510       ADJUSTED MILL-BRIDGE CONTACT; FLUX-LOCKED LOOP MODE; WHITE REGION;
510       MONOLITHIC STRUCTURE; Y/SUB 1/BA/SUB 2/CU/SUB 3/O/SUB 7-X/.
550       Y1BA2CU3O/INT BA2/INT CU3/INT BA/INT CU/INT Y1/INT O/INT Y/INT
550       Y1BA2CU3O/SS BA2/SS CU3/SS BA/SS CU/SS Y1/SS O/SS Y/SS.

DOCUMENT=            1947
 AUTH     = PEGRUM
 DT       = 06
 KN       = B40891603314
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410305
002       B40891603314
010       CONFERENCE PAPER; APPLICATIONS, PRACTICAL, EXPERIMENTAL.
100       THE PROPERTIES AND POTENTIAL APPLICATIONS OF BULK RF SQUIDS MADE FROM
100       YBACUO, BISRCACUO AND TLCABACUO.
200       PEGRUM, C.M.; BUCKLEY, J.R.; ODEHNAL, M.
220       STRATHCLYDE UNIV., GLASGOW, UK
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.872-5, REF.9
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHORS HAVE DEVELOPED METHODS FOR MAKING RF SQUIDS
400       (SUPERCONDUCTING QUANTUM INTERFERENCE DEVICES) FROM BULK SAMPLES OF
400       HIGH-TEMPERATURE CERAMIC SUPERCONDUCTORS. THE TECHNIQUE RELIES ON
400       INTRINSIC CLOSED SUPERCONDUCTING PATHWAYS WITHIN THE MATERIAL TO FORM
400       THE SQUID LOOP, AND INTERGRAIN CONTACT TO PROVIDE THE NECESSARY
400       JOSEPHSON ELEMENTS. THE MATERIAL DOES NOT NEED TO BE MULTIPLY
400       CONNECTED (FOR EXAMPLE, RING-SHAPED) OR TO HAVE A REGION WHICH IS
400       DELIBERATELY WEAKENED OR CONSTRICTED. IN THIS SENSE THIS TYPE IS
400       QUITE UNLIKE OTHER RF SQUIDS THAT HAVE BEEN DEVELOPED RECENTLY, WHICH
400       USE BREAK JUNCTIONS OR HAVE MACHINED CONSTRICTIONS. IT IS ALSO MUCH
400       SIMPLER TO MAKE AND REVEALS SOME INTERESTING PROPERTIES RELATED TO
400       THE NATURE OF THE CONTACT BETWEEN GRAINS. THE AUTHORS CONCLUDE THAT A
400       VERY SIMPLE SYSTEM CAN MAKE A MAGNETOMETER WITH A FIELD SENSITIVITY
400       AT 77 K OF 1.5*10/SUP -10/ T-HZ/SUP -1/2/, COMPARABLE TO THAT OF A
400       FLUX GATE MAGNETOMETER. THE TECHNIQUE ALSO PROVIDES A GOOD
400       EDUCATIONAL DEMONSTRATION OF QUANTUM INTERFERENCE AND CAN BE USED FOR
400       DETECTING THE SUPERCONDUCTING STATE IN SMALL BULK SAMPLES.
500       BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETOMETERS; SQUIDS; STRONTIUM
500       COMPOUNDS; THALLIUM COMPOUNDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; SUPERCONDUCTING STATE DETECTION; RF
510       SQUIDS; INTRINSIC CLOSED SUPERCONDUCTING PATHWAYS; SQUID LOOP;
510       INTERGRAIN CONTACT; JOSEPHSON ELEMENTS; MAGNETOMETER; FIELD
510       SENSITIVITY; QUANTUM INTERFERENCE; YBACUO; BISRCACUO; TLCABACUO.
550       YBACUO/INT BA/INT CU/INT O/INT Y/INT YBACUO/SS BA/SS CU/SS O/SS Y/SS;
550       BISRCACUO/INT BI/INT CA/INT CU/INT SR/INT O/INT BISRCACUO/SS BI/SS
550       CA/SS CU/SS SR/SS O/SS; TLCABACUO/INT BA/INT CA/INT CU/INT TL/INT
550       O/INT TLCABACUO/SS BA/SS CA/SS CU/SS TL/SS O/SS.

DOCUMENT=            1948
 AUTH     = HARROP
 DT       = 06
 KN       = B40891603315
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410306
002       B40891603315
010       CONFERENCE PAPER; EXPERIMENTAL.
100       NOISE MEASUREMENTS IN A 2-HOLE RADIO FREQUENCY SQUID AT LIQUID
100       NITROGEN TEMPERATURE.
200       HARROP, S.P.; COLCLOUGH, M.S.; GOUGH, C.E.; KEENE, M.N.; MUIRHEAD,
200       C.M.
220       DEPT. OF PHYS., BIRMINGHAM UNIV., UK
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.876-7, REF.10
350       ISSN 0018-9464, CODEN IEMGAQ
400       THE AUTHORS REPORT MEASUREMENTS OF THE NOISE IN A TWO-HOLE RF SQUID
400       (SUPERCONDUCTING QUANTUM INTERFERENCE DEVICE) FABRICATED FROM BULK
400       YBCO BY AN EROSION TECHNIQUE IN THE FREQUENCY RANGE 30 MHZ TO 1 KHZ.
400       ABOVE 100 HZ THE NOISE IS ESSENTIALLY WHITE WITH AN RMS (ROOT MEAN
400       SQUARE) VALUE OF 5*10/SUP -4/ PHI /SUB 0// SQUARE ROOT HZ AND IS
400       DOMINATED BY NOISE FROM THE ELECTRONICS. BELOW 10-HZ THE NOISE POWER
400       RISES AS 1/F/SUP 0/9/.
500       BARIUM COMPOUNDS; ELECTRON DEVICE NOISE; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; RANDOM NOISE; SQUIDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; WHITE NOISE; 1/F NOISE; TWO-HOLE RF
510       SQUID; EROSION TECHNIQUE; NOISE POWER; 77 K; 30 MHZ TO 1 KHZ; YBACUO.
550       YBACUO/INT BA/INT CU/INT O/INT Y/INT YBACUO/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 7.7 E+01 K; FREQUENCY 3.0 E-02 TO 1.0 E+03 HZ.

DOCUMENT=            1949
 AUTH     = HARMSTON
 DT       = 06
 KN       = B40891603316
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410307
002       B40891603316
010       CONFERENCE PAPER; PRACTICAL, EXPERIMENTAL.
100       HIGH T/SUB C/ RF-BIASED SQUID.
200       HARMSTON, C.H.; SYMKO, O.G.; YEH, W.J.; ZHENG, D.J. / KULKARNI, S.K.
220       DEPT. OF PHYS., UTAH UNIV., SALT LAKE CITY, UT, USA
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.878-80, REF.9
350       ISSN 0018-9464, CODEN IEMGAQ
400       RESULTS ARE PRESENTED ON THE BEHAVIOUR OF A SIMPLE RF-BIASED SQUID
400       (SUPERCONDUCTING QUANTUM INTERFERENCE DEVICE) MADE OUT OF YBA/SUB
400       2/CU/SUB 3/O/SUB 7/. IT CONSISTS OF A FRACTURED CERAMIC PELLET STUCK
400       TOGETHER AT ROOM TEMPERATURE. THIS SIMPLE DEVICE IS SHIELDED BY A
400       HIGH-T/SUB C/ TUBE AND SHOWS THE CHARACTERISTIC FLUX QUANTIZATION
400       BEHAVIOUR UP TO 77 K. AT 4.2 K ITS MAGNETIC FLUX RESOLUTION IS LESS
400       THAN 2*10/SUP -4/ PHI /SUB 0// SQUARE ROOT HZ, AND IT SHOWS
400       SENSITIVITY DEGRADATION AS THE TEMPERATURE IS RAISED.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SQUIDS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; RF-BIASED SQUID; FRACTURED CERAMIC
510       PELLET; HIGH-T/SUB C/ TUBE; FLUX QUANTIZATION BEHAVIOUR; MAGNETIC
510       FLUX RESOLUTION; SENSITIVITY DEGRADATION; YBA/SUB 2/CU/SUB 3/O/SUB
510       7/.
550       YBA2CU3O7/INT BA2/INT CU3/INT BA/INT CU/INT O7/INT O/INT Y/INT
550       YBA2CU3O7/SS BA2/SS CU3/SS BA/SS CU/SS O7/SS O/SS Y/SS.

DOCUMENT=            1950
 AUTH     = RYHANEN
 DT       = 06
 KN       = B40891603317
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410308
002       B40891603317
010       CONFERENCE PAPER; PRACTICAL, EXPERIMENTAL.
100       PROPERTIES OF THE MICROWAVE SQUID WITH AN YBACUO POINT CONTACT
100       JUNCTION.
200       RYHANEN, T. / SEPPA, H.
220       ELECTR. ENG. LAB., TECH. RES. CENTRE OF FINLAND, ESPOO, FINLAND
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.881-4, REF.6
350       ISSN 0018-9464, CODEN IEMGAQ
400       A HIGH-SENSITIVITY MICROWAVE SQUID (SUPERCONDUCTING QUANTUM
400       INTERFERENCE DEVICE), SUITABLE FOR RF ATTENUATION MEASUREMENTS, IS
400       CONSTRUCTED TAKING ADVANTAGE OF THE LOW DENSITY OF STATES OF CURRENT
400       CARRIERS IN HIGH-T/SUB C/ MATERIALS. THE DYNAMICS, THE NOISE
400       PROPERTIES, AND THE SENSITIVITY OF THE MICROWAVE SQUID ARE
400       THEORETICALLY ANALYZED. THE ULTIMATE ENERGY RESOLUTION OF THE
400       WAVEGUIDE SQUID IS INVERSELY PROPORTIONAL TO THE CHARACTERISTIC
400       FREQUENCY OMEGA /SUB C/=R/SUB Q//L OF THE LOOP. OMEGA /SUB C/ IS HIGH
400       FOR YBACUO JUNCTIONS AT 4.2 K BECAUSE OF SMALL LEAKAGE. A FLUX
400       SENSITIVITY OF 4*10/SUP 4-6/ PHI /SUB 0// SQUARE ROOT HZ HAS BEEN
400       ACHIEVED, WHICH IS IN GOOD AGREEMENT WITH THE THEORETICAL
400       PREDICTIONS.
500       BARIUM COMPOUNDS; ELECTRON DEVICE NOISE; HIGH-TEMPERATURE
500       SUPERCONDUCTORS; POINT CONTACTS; SOLID-STATE MICROWAVE DEVICES;
500       SQUIDS; WAVEGUIDE COMPONENTS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CURRENT CARRIER DENSITY OF STATES;
510       HIGH-SENSITIVITY MICROWAVE SQUID; RF ATTENUATION MEASUREMENTS;
510       DYNAMICS; NOISE PROPERTIES; ENERGY RESOLUTION; WAVEGUIDE SQUID; FLUX
510       SENSITIVITY; YBACUO POINT CONTACT JUNCTION.
550       YBACUO/INT BA/INT CU/INT O/INT Y/INT YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1951
 AUTH     = SING
 DT       = 06
 KN       = B40891603318
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410309
002       B40891603318
010       CONFERENCE PAPER; APPLICATIONS, EXPERIMENTAL.
100       DC SQUID IN YBACUO CERAMICS OPERATING AT 77 K.
200       SING, M.L.C.; ROBBES, D.; MONFORT, Y.; BLOYET, D.; PROVOST, J.;
200       RAVEAU, B.
220       ISMRA, CAEN, FRANCE
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.889-92, REF.25
350       ISSN 0018-9464, CODEN IEMGAQ
400       CONSTRICTIONS WITH TYPICAL CROSS-SECTIONAL AREAS OF 10/SUP -8/-10/SUP
400       -7/ M/SUP 2/ ENGRAVED IN BULK YBA/SUB 2/CU/SUB 3/O/SUB 7-D/ CERAMICS
400       OPERATE AS DC SQUIDS (SUPERCONDUCTING QUANTUM INTERFERENCE DEVICES)
400       AT 77 K. THESE SENSORS HAVE A MAGNETIC FIELD SENSITIVITY OF 1 TO 20
400       PT/ SQUARE ROOT HZ, A FLUX SENSITIVITY OF 6*10/SUP -6/ TO 3*10/SUP
400       -5/ PHI /SUB 0// SQUARE ROOT HZ, AND A CORRESPONDING ENERGY
400       RESOLUTION IN THE 10/SUP -30/-10/SUP -29/ J/HZ RANGE AROUND 20 KHZ.
400       THE NOISE SPECTRAL DENSITY OF THE DEVICE CLEARLY EXHIBITS
400       LOW-FREQUENCY 1/F NOISE, WHICH SCALES THROUGHOUT THE WHOLE
400       INVESTIGATED RANGE OF FREQUENCIES. THE NOISE SPECTRA AT 1 HZ VARIES
400       BETWEEN 5*10/SUP -27/ AND 2*10/SUP -26/ J/HZ.
500       BARIUM COMPOUNDS; ELECTRIC SENSING DEVICES; ELECTRON DEVICE NOISE;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; MAGNETIC FIELD MEASUREMENT; RANDOM
500       NOISE; SQUIDS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; CERAMICS; CROSS-SECTIONAL AREAS; DC
510       SQUIDS; MAGNETIC FIELD SENSITIVITY; FLUX SENSITIVITY; ENERGY
510       RESOLUTION; NOISE SPECTRAL DENSITY; LOW-FREQUENCY 1/F NOISE; NOISE
510       SPECTRA; 77 K; YBA/SUB 2/CU/SUB 3/O/SUB 7-D/.
550       YBA2CU3O/INT BA2/INT CU3/INT BA/INT CU/INT O/INT Y/INT YBA2CU3O/SS
550       BA2/SS CU3/SS BA/SS CU/SS O/SS Y/SS.
560       TEMPERATURE 7.7 E+01 K.

DOCUMENT=            1952
 AUTH     = WANG
 DT       = 06
 KN       = B40891603319
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410310
002       B40891603319
010       CONFERENCE PAPER; PRACTICAL, EXPERIMENTAL.
100       DC SQUIDS FABRICATED WITH YBACUO THIN FILMS.
200       WANG, S.; CUI, G.; DAI, Y.; JIANG, H.; ZENG, X.; LI, J.; BAO, Z.;
200       WANG, S.; LI, C.; YIN, D. / SHAO, K.; CAO, C.
220       PEKING UNIV., CHINA
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.893-5, REF.11
350       ISSN 0018-9464, CODEN IEMGAQ
400       DC SUPERCONDUCTING QUANTUM INTERFERENCE DEVICES (SQUIDS) HAVE BEEN
400       FABRICATED FROM THIN FILMS OF YBACUO. THE DEVICES WERE MADE BY THE
400       PHOTOLITHOGRAPHIC METHOD WITH WET ETCHING. THE OSCILLATORY OUTPUT
400       VOLTAGE OF THE DEVICES IN A SWEEPING MAGNETIC FIELD IS SHOWN TO HAVE
400       A GOOD PERIODICITY. TRIANGULAR WAVE PATTERNS OF THE DC SQUID OUTPUT
400       WERE OBSERVED.
500       BARIUM COMPOUNDS; ETCHING; HIGH-TEMPERATURE SUPERCONDUCTORS;
500       PHOTOLITHOGRAPHY; SQUIDS; SUPERCONDUCTING THIN FILMS; YTTRIUM
500       COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; TRIANGULAR WAVE PATTERNS; DC
510       SUPERCONDUCTING QUANTUM INTERFERENCE DEVICES; SQUIDS;
510       PHOTOLITHOGRAPHIC METHOD; WET ETCHING; OSCILLATORY OUTPUT VOLTAGE;
510       SWEEPING MAGNETIC FIELD; PERIODICITY; YBACUO THIN FILMS.
550       YBACUO/INT BA/INT CU/INT O/INT Y/INT YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1953
 AUTH     = KITA
 DT       = 06
 KN       = B40891603320
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410311
002       B40891603320
010       CONFERENCE PAPER; APPLICATIONS, EXPERIMENTAL.
100       MILLIMETER-WAVE DETECTION BY GBJJ USING HIGH-T/SUB C/ SUPERCONDUCTING
100       YBACUO FILMS.
200       KITA, S. / TANABE, H.; KOBAYASHI, T.
220       DEPT. OF CONTROL ENG., TAKUMA NAT. COLL. OF TECHNOL., KAGAWA, JAPAN
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.907-10, REF.13
350       ISSN 0018-9464, CODEN IEMGAQ
400       MILLIMETER-WAVE DETECTION IN THE HETERODYNE MIXING MODE HAS BEEN
400       CARRIED OUT USING THE HIGH-T/SUB C/ SUPERCONDUCTING GBJJ (GRAIN
400       BOUNDARY JOSEPHSON JUNCTION). THE GBJJ WAS FABRICATED FROM HIGH T/SUB
400       C/ SUPERCONDUCTING Y-BA-CU-O FILMS, PREPARED ON YSZ AND SRTIO/SUB 3/
400       SUBSTRATES USING AN RF SPUTTERING TECHNIQUE. THE JUNCTION WAS
400       PATTERNED BY CHEMICAL WET ETCHING WITH PHOSPHORIC ACID SOLUTION. THE
400       AUTHORS CARRIED OUT EXPERIMENTS IN THE HETERODYNE MIXING MODE FOR A
400       SIGNAL OF 35 GHZ WITH LOCAL OSCILLATION AT 34.97 GHZ. THE DETECTED IF
400       (INTERMEDIATE FREQUENCY) OUTPUT POWER WAS OBTAINED AT A BIAS VOLTAGE
400       LYING MIDWAY BETWEEN THE ZEROTH AND FIRST SHAPIRO STEPS. A MIXER
400       CONVERSION EFFICIENCY OF -15 DB WAS OBTAINED WITH A DYNAMIC RANGE OF
400       ABOUT 20 DB AT 35 GHZ. THIS RESULT STRONGLY IMPLIES THAT HIGH-T/SUB
400       C/ SUPERCONDUCTING GBJJ WORKS WELL AS A DETECTOR AT MILLIMETER-WAVE
400       FREQUENCIES.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT;
500       MICROWAVE DETECTORS; SPUTTERED COATINGS; SUPERCONDUCTING JUNCTION
500       DEVICES; SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; IF OUTPUT; MM-WAVE DETECTION;
510       HETERODYNE MIXING MODE; GRAIN BOUNDARY JOSEPHSON JUNCTION; RF
510       SPUTTERING; CHEMICAL WET ETCHING; BIAS VOLTAGE; SHAPIRO STEPS; MIXER
510       CONVERSION EFFICIENCY; DYNAMIC RANGE; 35 GHZ; YBACUO FILMS; SRTIO/SUB
510       3/ SUBSTRATES; ZRO/SUB 2/-Y/SUB 2/O/SUB 3/ SUBSTRATE.
550       ZRO2Y2O3/SUR O2/SUR O3/SUR Y2/SUR ZR/SUR O/SUR Y/SUR ZRO2Y2O3/SS
550       O2/SS O3/SS Y2/SS ZR/SS O/SS Y/SS; YBACUO/INT BA/INT CU/INT O/INT
550       Y/INT YBACUO/SS BA/SS CU/SS O/SS Y/SS; SRTIO3/SUR TIO3/SUR O3/SUR
550       SR/SUR TI/SUR O/SUR SRTIO3/SS TIO3/SS O3/SS SR/SS TI/SS O/SS.
560       FREQUENCY 3.5 E+10 HZ.

DOCUMENT=            1954
 AUTH     = SHEN
 DT       = 06
 KN       = B40891603321
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410312
002       B40891603321
010       CONFERENCE PAPER; EXPERIMENTAL.
100       HEIGHTS OF MICROWAVE INDUCED STEPS, TEMPERATURE DEPENDENT
100       SUPERCURRENT AND OTHER EXPERIMENTAL OBSERVATIONS IN YBCO WEAK LINK.
200       SHEN, N.X.; WU, P.H.; YANG, S.Z.; CHENG, Q.H.; SHENG, Y.B.; LUO,
200       H.X.; KUI, J.S.
220       NANJING UNIV., CHINA
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.915-18, REF.3
350       ISSN 0018-9464, CODEN IEMGAQ
400       FOR YBCO BRIDGES MADE OF BULK SAMPLES, THE AUTHORS HAVE CAREFULLY
400       MEASURED THE HEIGHT OF THE MICROWAVE-INDUCED STEPS AS A FUNCTION OF
400       APPLIED MICROWAVE POWER AND FOUND, FOR OMEGA =HF/2EI/SUB C/R=0.25,
400       APPROXIMATE AGREEMENT WITH THE BESSEL FUNCTION DEPENDENCE. THE
400       SUPERCURRENT VERSUS TEMPERATURE DEPENDENCE FOLLOWS THE I/SUB C/
400       VARIES AS (1-T/T/SUB C/) RELATIONSHIP QUITE CLOSELY AT TEMPERATURES
400       FAR FROM T/SUB C/, WHILE IN THE VICINITY OF T/SUB C/ THE DEVIATION
400       FROM IT CAN BE PRONOUNCED. FOR BRIDGES MADE OF YBCO THIN FILMS, THE
400       TEMPERATE-DEPENDENT SUPERCURRENT CAN BE EXPRESSED AS I/SUB C/ VARIES
400       AS (1-T/T/SUB C/)/SUP 3/2/. ALSO DISCUSSED ARE SOME POSSIBLE
400       EXPLANATIONS OF EXPERIMENTALLY OBSERVED I-V CURVES WHICH MIGHT BE
400       ATTRIBUTED TO MECHANISMS SUCH AS SELF-HEATING AND JUNCTIONS IN
400       SERIES.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; SUPERCONDUCTING
500       JUNCTION DEVICES; SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; I-V CURVES; MICROWAVE INDUCED STEPS;
510       TEMPERATURE DEPENDENT SUPERCURRENT; WEAK LINK; BRIDGES; BESSEL
510       FUNCTION DEPENDENCE; SELF-HEATING; JUNCTIONS IN SERIES; YBACUO THIN
510       FILMS.
550       YBACUO/INT BA/INT CU/INT O/INT Y/INT YBACUO/SS BA/SS CU/SS O/SS Y/SS.

DOCUMENT=            1955
 AUTH     = HAUSER
 DT       = 06
 KN       = B40891603322
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410313
002       B40891603322
010       CONFERENCE PAPER; PRACTICAL, EXPERIMENTAL.
100       PROPERTIES OF LIFT-OFF STRUCTURED HIGH T/SUB C/ MICROBRIDGES.
200       HAUSER, B.; KLOPMAN, B.; BLANK, D.; ROGALLA, H.
220       DIV. OF LOW TEMP., TWENTE UNIV., ENSCHEDE, NETHERLANDS
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.919-22, REF.12
350       ISSN 0018-9464, CODEN IEMGAQ
400       MICROBRIDGES AND DC SQUIDS (SUPERCONDUCTING QUANTUM INTERFERENCE
400       DEVICES) WERE FABRICATED, USING A LIFT-OFF TECHNIQUE, FROM RF
400       SPUTTERED YBACUO FILMS ON MGO SINGLE-CRYSTAL SUBSTRATES. MICROWAVE
400       MEASUREMENTS AT 9 GHZ ON MICROBRIDGES AND THE MAGNETIC-FIELD
400       DEPENDENCE OF THEIR CRITICAL CURRENT REVEAL WIDE BRIDGE BEHAVIOUR UP
400       TO TEMPERATURES NEAR THE MAXIMUM OPERATING TEMPERATURE OF THE BRIDGE.
400       MOSTLY, A LINEAR DEPENDENCE OF THE CRITICAL CURRENT ON THE
400       TEMPERATURE IS FOUND, WHICH IS CONNECTED WITH HIGH INTRINSIC 1/F
400       NOISE IF THE BRIDGE IS CONSTANT-CURRENT-BIASED SLIGHTLY ABOVE THE
400       CRITICAL CURRENT. IN SOME BRIDGES AND DC SQUIDS, REGIMES WITH A
400       TEMPERATURE DEPENDENCE PROPORTIONAL TO (1-T/T/SUB C/)/SUP 1.5/ ARE
400       FOUND. IN THIS CASE THE 1/F NOISE LEVEL IS MUCH SMALLER AND SQUID
400       MODULATION CAN BE FOLLOWED TO ABOUT 65 K.
500       BARIUM COMPOUNDS; CRITICAL CURRENTS; ELECTRON DEVICE NOISE;
500       HIGH-TEMPERATURE SUPERCONDUCTORS; RANDOM NOISE; SPUTTERED COATINGS;
500       SQUIDS; SUPERCONDUCTING JUNCTION DEVICES; SUPERCONDUCTING THIN FILMS;
500       YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTOR; RF SPUTTERING; MICROWAVE
510       MEASUREMENT; MICROBRIDGES; LIFT-OFF TECHNIQUE; MAGNETIC-FIELD
510       DEPENDENCE; CRITICAL CURRENT; 1/F NOISE; DC SQUIDS; SQUID MODULATION;
510       9 GHZ; YBACUO FILMS; MGO SUBSTRATE.
550       MGO/SUR MG/SUR O/SUR MGO/BIN MG/BIN O/BIN; YBACUO/INT BA/INT CU/INT
550       O/INT Y/INT YBACUO/SS BA/SS CU/SS O/SS Y/SS.
560       FREQUENCY 9.0 E+09 HZ.

DOCUMENT=            1956
 AUTH     = KOBAYASH
 DT       = 06
 KN       = B40891603323
 LG       = ENGL
 SN       = ISSN 0018-9464
 YR       = 89
000       3410314
002       B40891603323
010       CONFERENCE PAPER; PRACTICAL, EXPERIMENTAL.
100       THREE TERMINAL YBACUO JOSEPHSON DEVICE WITH QUASI-PARTICLE INJECTION
100       GATE.
200       KOBAYASHI, T.; HASHIMOTO, K.-I.; KABASAWA, U.; TONOUCHI, M.
220       FAC. OF ENG. SCI., OSAKA UNIV., JAPAN
300       1988 APPLIED SUPERCONDUCTIVITY CONFERENCE.
305       SAN FRANCISCO, CA, USA.  21-25 AUG. 1988.  IEEE.
310       IEEE TRANS. MAGN. (USA)
330       MARCH 1989. VOL.25, NO.2, P.927-30, REF.13
350       ISSN 0018-9464, CODEN IEMGAQ
400       A NOVEL TYPE OF THREE-TERMINAL JOSEPHSON DEVICE CALLED THE SCST
400       (SUPERCONDUCTING CURRENT SWITCHING TRANSISTOR), WAS FABRICATED USING
400       HIGH-T/SUB C/ LNBACUO (LN=Y, ER) THIN EPITAXIAL AND/OR
400       POLYCRYSTALLINE FILMS. THE HOT QUASI-PARTICLE INJECTION EFFECT ON THE
400       JOSEPHSON (OR SUPERCONDUCTING) CURRENT IN THE FILMS WAS CLOSELY
400       EXAMINED. THE ZERO BIAS DRAIN CURRENT WAS EFFICIENTLY SUPPRESSED BY
400       THE INJECTION OF THE HOT QUASI-PARTICLES THROUGH THE GATE ELECTRODE.
400       A COMPARISON OF THE EXPERIMENTAL RESULTS AND ANALYSES BASED ON THE
400       BCS THEORY SUGGESTS THAT THE MAIN MECHANISM OF THE CURRENT MODULATION
400       IS THE NONEQUILIBRIUM SUPERCONDUCTIVITY DUE TO THE ACCUMULATION OF
400       THE EXCESS QUASI-PARTICLES. THE MAXIMUM CURRENT MODULATION GAIN WAS 5
400       APPROXIMATELY 7 AND THE MODULATION CURRENT RANGED AS LOW AS 3
400       APPROXIMATELY 10 A/CM/SUP 2/.
500       BARIUM COMPOUNDS; HIGH-TEMPERATURE SUPERCONDUCTORS; JOSEPHSON EFFECT;
500       QUASI-PARTICLES; SUPERCONDUCTING EPITAXIAL LAYERS; SUPERCONDUCTING
500       JUNCTION DEVICES; SUPERCONDUCTING THIN FILMS; YTTRIUM COMPOUNDS.
510       HIGH TEMPERATURE SUPERCONDUCTORS; EPITAXIAL FILMS; QUASI-PARTICLE
510       INJECTION GATE; THREE-TERMINAL JOSEPHSON DEVICE; SUPERCONDUCTING
510       CURRENT SWITCHING TRANSISTOR; POLYCRYSTALLINE FILMS; HOT
510       QUASI-PARTICLE INJECTION; ZERO BIAS DRAIN CURRENT; BCS THEORY;
510       CURRENT MODULATION; NONEQUILIBRIUM SUPERCONDUCTIVITY; YBACUO;
510       ERBACUO.
550       ERBACUO/INT BA/INT CU/INT ER/INT O/INT ERBACUO/SS BA/SS CU/SS ER/SS
550       O/SS; YBACUO/INT BA/INT CU/INT O/INT Y/INT YBACUO/SS BA/SS CU/SS O/SS
550       Y/SS.