Post on 08-Jul-2020
N. Koshizuka S. Tajima (Eds.)
Advances inSuperconductivity XIProceedings of the 11th International Symposium onSuperconductivity (ISS '98), November 16-19,1998, Fukuoka
Volume 1
ISTEC
With 565 Figures
Springer
Contents of Volume 1* Invited papers
Foreword VPreface VIOrganization of ISS '98 VII
1 Plenary Lectures
Trend of Science in the 21st CenturyF. YONEZAWA 3
*Application of High-Temperature SQUID Magnetometers to NondestructiveEvaluation and Geomagnetic Exploration
A.I. BRAGINSKI 9
A Clinical Application of Superconductivity Technology — The Measurement ofMagnetic Fields Produced by the Human Body —
M. KOTANI 25
The Effect of Chemical Pressure on T, of Layered Cuprate SuperconductorsM. MAREZIO, F. LICCI, A. GAUZZI 31
Critical Currents in Neutron-Irradiated High Temperature SuperconductorsH.W.WEBER 37
Review of Coated Conductor Superconductor Wire Scale-Up Research in the U.S.R.H. HAMMOND 43
Challenges in the Realization of SFQ Digital CircuitsT. VanDuzER 49
2 Physics
2.1 Normal State Properties
Pressure Effects on Transport Properties of Detwinned Single Crystal YBa2Cu3O7 5
K. YOSHIDA, A.I. RYKOV, I. TERASAKI, S. TAJIMA 57
Cu NMR Study of HgBa2Cu04+s and ^Y. ITOH, T. MACHI, S. ADACHI, A. TOKIWA-YAMAMOTO, K. TANABE, N. KOSHIZUKA .. 61
XI
XII
Photoinduced Phase Transition in YBa2Cu3Ox Observed by in-situ Resonant Raman
Spectroscopy
M. OSADA, M. KAKIHANA, J. BACKSTROM, M. KALL, L. BORJESSON 65
Electronic State of CuO
X.G. ZHENG, N. TSUTSUMI, S. TANAKA, M. SUZUKI, C.N. XU 69
Out-of-Plane Transport Properties of Zn-Substituted Bi-2212 Single Crystals with
Different Oxygen Content
H. KOUNO, H. IKEDA, R. YOSHIZAKI 73
Separation of Electronic and Phononic Components in Raman Spectra of High-T.
Superconductors
A.G. PANFILOV, S. TAJIMA, A. YAMANAKA 77
Electric Resistivity of PrBa2Cu3O7 x Poly crystals
T. MINAWA, A. IYO, H. KAWANAKA, Z. ZOU, H. BANDO, Y. NISHIHARA 81
Single Crystal Growth and Magnetic Properties of (La,Nd)4Ba2Cu2O10
H. NOZAKI, Y. YAMADA, H. IKUTA, I. HIRABAYASHI, U. MIZUTANI 85
Growth and the Transport Property of Single Crystal PrBa2Cu40g
S. HORII, Y. YAMADA, H. IKUTA, I. HIRABAYASHI, U. MIZUTANI 89
Femtosecond Optical Pulse Response of Yo 7PrQ 3Ba2Cu3O7 g Thin Films
S. NASHIMA, M. TONOUCHI, M. HANGYO, K.-U. BARHOLZ, P. SEIDEL 93
Anisotropic Transport Properties of Pb-Doped Bi2212 Single Crystals
T. MOTOHASHI, H. KOBAYASHI, Y. NAKAYAMA, T. FUJITA, K. OTZSCHI, J. SHIMOYAMA,
K. KlTAZAWA, K. KlSHIO 97
Effects of Oxygen Deficiency on ESR of Mn2+ Ions Substituted in YBa2Cu307 6
Superconductors
C. TAKA, A. NISHIDA, K. HORAI 101
Measurements of Hall Effect on Bi2212 Under Uniaxial Stress
N. WATANABE, T. NAKAJIMA, K. TSUSHIMA 105
ESR of Host Magnetic Ions or Impurity Ions in La2 xGdxCuO4 (0 x 2) as a Probe
of Magnetic Interaction Between Magnetic Ions
K. SUGAWARA, J. TAKAI, N. ARAI, K. YAMAMOTO, K. HOTTA, H. HIROSE 109
Resistive Transition in Bi2Sr2CaCu2Ox Single Crystals Measured Using Uniform
and Non-Uniform Current Distributions
K. NAKAO, J.G. WEN, N. KOSHIZUKA 113
Transport Properties of Grain Boundary Junctions Fabricated from Hole and
Electron Doped High-T, Superconductors
U. SCHOOP, S. KLEEFISCH, S. MEYER, A. MARX, M. NAITO, H. SATO, L. ALFF,
R. GROSS 117
Microwave and Millimeter-Wave Conductivity of Sr]4Cu24O41
R. INOUE, H. KITANO, T. HANAGURI, A. MAEDA, N. MOTOYAMA, T. OSAFUNE,
M. TAKABA, H. EISAKJ, S. UCHIDA 121
XIII
Film-Thickness Dependence of Anomalous Dielectric Property Found in C-Axis-
Oriented La2 xSrxCuO4 Film with Localization
M. SUGAHARA, S. MlTANI, H. KANEDA 125
Ion Milling of YBa2Cu307 5 Thin Films and Their Characterization
S. NASHIMA, M. KAWAMURA, S. SHIKII, M. TONOUCHI, M. HANGYO 129
2.2 Superconducting State Properties
Low Temperature Penetration Depth Measurements in High-7 Superconductors
C. PANAGOPOULOS, T. XIANG, J.R. COOPER, J.L. TALLON 133
Magnetic Imaging of Interlayer Josephson Vortices
J.R. KlRTLEY, K.A. MOLER, J.A. ScHLUETER, J .M. WILLIAMS, D.G. HlNKS,
T.W. Li, G. VILLARD, A. MAIGNAN 139
STM Vortex Core Spectroscopy and Non-BCS Pairing in High Temperature
Superconductors
C. RENNER, B. REVAZ, K. KADOWAKI, I. MAGGIO-APRILE, A. ERB, E. WALKER,
0 . FISCHER 145
Pseudogap Probed by STM
A. MATSUDA, S. SUGITA, T. WATANABE 151
Superconducting Gap and Pseudogap Behavior in High-Tc Cuprates
M. ODA, H. ISHIGURO, R.M. DIPASUPIL, N. MOMONO, T. NAKANO, M. IDO 157
Coulomb Blockade of the Intrinsic Josephson Tunneling in Submicron BSCCO
Stacks
Y.I. LATYSHEV, S.J. KIM, T. YAMASHITA 161
Tunneling Study of Oxygen Concentration Dependence of Electronic State in
Bi2Sr2CaCu208x
A. SUZUKI, M. SUZUKI, M. KUNO, Y. ASO, X.G. ZHENG, S. TANAKA 165
Magnetic-Field Dependence of the Energy Gap in Bi2Sr2Cu06+6
T. EKINO, Y. SEZAKI, H. FUJII 169
Anomalous Temperature Dependence of the London Penetration Depth in Hole
Doped High-F. Superconductors
S. MEYER, S. KLEEFISCH, A. MARX, M. ZITTARTZ, L. ALFF, R. GROSS 173
Break-Junction Measurements of the Energy Gap Above Tc in Bi2Sr2CaCu20gt5
T. EKINO, Y. SEZAKI, H. FUJII 177
Quantum Interference Found in //c Conductance Modulation of La2 xSrxCuO4
Thin Film in CO2 Laser Irradiation
M. SUGAHARA, T. KABASAWA, T. NAGASAWA, Y. UEDA, R. SHIMODA, H. KANEDA .... 181
The r=0 Phase Diagram of the Field-Driven Superconductor-Insulator Transition
in2D
S. OKUMA, S. SHINOZAKI, N. KOKUBO 185
XIV
Evaluation of Supercurrent Distribution by Terahertz Radiation MappingM. YAMASHITA, S. SHIKII, T. KONDO, T. KIWA, M. TONOUCHI, M. HANGYO 189
2.3 Vortex and Critical Current
*ac Charge Dynamics in the Meissner State and the Vortex State of Bi2Sr2CaCu,OA. MAEDA, T. HANAGURI, H. KITANO 193
Magnetic Flux Generation in YBCO Thin Film Loops by Optical ExcitationUnder Magnetic Field
H. SAIJO, M. YAMASHITA, T. KIWA, T. KONDO, O. MORIKAWA, M. TONOUCHI,
M. HANGYO 199
The Vortex-Glass Transition and Phase Diagram in Low-7, SuperconductorsS. OKUMA, M. ARAI, N. KOKUBO 203
Anomalous Peak Effect and Current-Driven Flux Lines in IrradiatedBi2Sr2CaCu20g+g: A Computer Simulation Study
R. SUGANO, T. ONOGI, K. HIRATA, M. TACHIKI 207
Estimation of Current Distribution in a Type II SuperconductorB. HADANO, O. ICHIMARU, E. KUSAYANAGI 211
Controllability and Stability of Magnetic Flux in YBCO Thin Film Loop Trappedby Optically Induced Current Imbalance
K. SHIKITA, M. YAMASHITA, T. KIWA, O. MORIKAWA, M. TONOUCHI, M. HANGYO .... 215
Magnetic Flux Trap in Ion Implanted YBCO Thin Films Diagnosed by TerahertzMapping
T. KIWA, M. YAMASHITA, O. MORIKAWA, T. NAKAMURA, M. TONOUCHI, M. HANGYO 219
Vortex Distribution Observed by Hall-Probe Array for Overdoped Bi-2212 CrystalY. YAMAGUCHI, G. RAJARAM, N. SHIRAKAWA, H. OBARA, T. NAKAGAWA,
A. MUMTAZ, H. BANDO 223
A NMR Study of Vortex Melting in YBa2Cu4O8
T. MACHI, N. KOSHIZUKA, H. YASUOKA 227
Magnetic Field Dependence of Jc in NdBa2Cu3O7 g Single Crystals Grown UnderVarious O2 Partial Pressures
S. SHIBATA, A.K. PRADHAN, T. MATSUSHIMA, H. UNOKI, N. KOSHIZUKA 231
Fast Magnetic Relaxation Close to T. in YBCOI. ISAAC, J.A. JUNG 235
Observation of the First-Order Vortex Lattice Melting in NdBafluQ Single CrystalsA.K. PRADHAN, S. SHIBATA, K. NAKAO, N. KOSHIZUKA 239
Magnetic Properties of (Nd033Eu033Gd033)Ba2Cu3Oy Doped by Additional Gd-211Particles
M. JIRSA, M.R. KOBUSCHKA, M. MURALIDHAR, A. DAS, M. MURAKAMI 243
Field-Cooled Flux Distributions as Tool to Analyze Pinning PropertiesM.R. KOBUSCHKA, A. DAS, M. MURALIDHAR, N. SAKAI, M. MURAKAMI 247
XV
Superconducting Transitions of Bulk 123 Superconductors in Fields Up to 7 T
M.R. KOBLISCHKA, M. MURALIDHAR, T. HIGUCHI, K. WAKI, T. MOCHIDA,
N. CHIKUMOTO, M. MURAKAMI 251
Pinning in Nd-Based 123-Superconductors
M.R. KOBLISCHKA, M. JIRSA, M. MURALIDHAR, T. HIGUCHI, M. MURAKAMI 255
Distribution of Electric Field and Charge in Superconducting Strips Induced by
Hall Effects
Y. MAWATARI 259
Effect of Parallel Magnetic Field on the Melting Transition in BSCCO
S. NAKAHARAI, T. ISHIGURO, S. WATAUCHI, J. SHIMOYAMA, K. KISHIO 263
Effect of Ca Doping on the Lower Critical Field of YBa,Cu3O7 d Single Crystals
S. TOCHIHARA, M. MASHINO, H. YASUOKA, H. MAZAKI, M. OSADA,
M. KAKIHANA 267
Complex Harmonic Susceptibilities of Bi2Sr2Ca2Cu3O with Different Critical-
Current Density
M. MASHINO, H. YASUOKA, H. MIYAIRI, H. NAKANE, S. HASEYAMA 271
The LPE Growth of Iron Garnet Films for Magnetic Flux Density Observation
N. ADACHI, N. NISHIOKA, T. HIBI, T. OKUDA, T. MACHI, T. TAKAGI,
N. KOSHIZUKA 275
Current Dependence of the Effective Pinning Potential in Grain Aligned High-Tc
Superconductors
I. ISAAC, H. OHSAKI, J.A. JUNG 279
Pinning Mechanism in Weakly Pinned Type II Superconductors
M. YOSHIHARA, E. KUSAYANAGI 283
Recoupling Vortices due to Columnar Defects in 3.5 GeV Xe-Irradiated QMG-
YBCO
S. OKAYASU, N. KURODA, A. IWASE, T. KAMBARA 287
Vortex State of Heavy Ion Irradiated Ni-Doped Bi-2212
H. IKEDA, N. KURODA, A. IWASE, T. KAMBARA, R. YOSHIZAKI 291
Dynamical Properties of Vortices in the Mixed State of Amorphous MojSi1 x Films
N. KOKUBO, S. OKUMA 295
The Thermally Nucleated Dissipation Process in Zero Field Studied by Voltage Noise
N. KOKUBO, M. MUTO, S. OKUMA 299
Magnetic Relaxation Properties in OCMG Processed Nd-Ba-Cu-0 Bulk
Superconductors
T. MOCHIDA, H.S. CHAUHAN, N. SAKAI, N. CHIKUMOTO, M. MURAKAMI 303
Anisotropy of Underdoped YBa,Cu3O65 Single Crystal
T. ISHIDA, K. KTTAMURA, K. OKUDA, A.I. RYKOV, S. TAJIMA 307
ac Susceptibility and ac Loss of Silver-Sheathed Bi-2223 Tapes
N. SAVVIDES, K.-H. MOLLER 311
XVI
Transport Current Distribution in Superconducting TapesJ. HERRMANN, N. SAVVIDES, K.-H. MULLER 315
Connectivity and Limitation of Current in Bi-2223/Ag TapesK.-H. MULLER, C. ANDRIKIDIS, N. SAVVIDES, J. Du, K.E. LESLIE, C.P. FOLEY 319
2.4 Theories
New Concept on Superconductor — Flux Electron —T. OHNUMA 323
Gap-Related Structure in a Phonon Spectrum of CuxBa2Ca3Cu4Oy
Y. TANAKA, K. TOKIWA, A. IYO, T. ITOH, H. IHARA, S.K. AGARWAL 327
Impurity Effects on the Superconducting State with a Nodeless Gap in the t-J ModelH. TSUCHIURA, Y. TANAKA, M. OGATA, S. KASHIWAYA 331
Theory of Tunneling Effect in Ferromagnetic Metal/Insulator/Triplet SuperconductorJunctions
N. YOSHIDA, Y. TANAKA, M. YAMASHIRO, S. KASHIWAYA 335
ac Josephson Current in d-Wave Superconductor JunctionsN. YOSHIDA, Y. TANAKA, S. KASHIWAYA 339
Superconducting Condensation Energy of the Two-Dimensional Hubbard ModelObtained by the Variational Monte Carlo Study
K. YAMAJI, T. YANAGISAWA, S. KOIKE 343
Superconducting States with a Nodeless Gap in the t-t'-J-J' ModelH. TSUCHIURA, Y. TANAKA, M. OGATA, S. KASHIWAYA 347
3 Chemistry
3.1 New Materials and New Superconductors
*Superconductivity in Electron-Doped Layered Metal NitridesS. YAMANAKA, K. HOTEHAMA, H. KAWAJI 353
Superconductivity in the K-Bi-O SystemN.R. KHASANOVA, A. YAMAMOTO, F. IZUMI, T. KAMIYAMA, X.J. WU, K. YOSHIDA,
S. TAJIMA 359
Synthesis and Magnetic Properties of Cu2GeO4 Containing Edge-Sharing CuO2
ChainsT. YAMADA, Z. HIROI, M. TAKANO, M. NOHARA, H. TAKAGI 363
Investigation of an Unstable T. 126K Phase and Its Derivative Phase in theBa-Ca-Cu-0 System
T. HOSOMI, H. SUEMATSU, H. FJELLVAG, Y. MATSUI, Y. TOMOKIYO, M. KARPPINEN,
H. YAMAUCHI 367
High-Pressure Synthesis of Ba2Can ,Cun02n(O,F)2 (n=2~5) with the Highest r of120K(n=3)
A. IYO, M. TOKUMOTO, H. IHARA 371
XVII
New V-Based Superconductors (Cu,V)Sr2Can ,CunOy (n=3-7) Synthesized Under
High Pressure
N. ZHIGADLO, E. TAKAYAMA-MUROMACHI 375
Superconductivity and Crystal Structure of LaBaCuO2BO3 Compound
Z. Zou, J. YE, H. KAWANAKA, T. MINAWA, H. BANDO, Y. NISHIHARA 379
3.2 Crystallinity, Oxygen Content, and Carrier Doping
Low Temperature Structural Studies of Mercury Cuprates Superconductors
F. Due, P. BORDET 383
Application of Convergent-Beam-Electron-Diffraction Technique to Determine
Novel Cuprate Structures
H. SUEMATSU, M. NAGASE, Y. TOMOKIYO, M. KARPPINEN, H. YAMAUCHI 389
Single Crystal Study of Enchanced Flux Pinning in (Hg,Pb)(Ba,Sr)2Ca2Cu30g+5
and (Hg,Pb)Sr2Ca2Cu3O8+s
T. AKAO, S. LEE, N. KIRYAKOV, D. EMELYANOV, H. SUEMATSU, H. YAMAUCHI 393
Structural Evolution Induced by Changing Hole Carrier Density in
(Hg,Tl)2Ba2(Cax,Ylx)Cu20y
X J . Wu, A. TOKIWA-YAMAMOTO, T. TATSUKI, S. ADACHI, K. TANABE 397
Chemical Control and Hole Distribution in High-Tc Cuprates
R.S. Liu, J.M. CHEN 401
Anisotropy of Bi15Pb07Sr lgCaCu2Og+5 Single Crystal
T. ISHIDA, K. INOUE, K. OKUDA, Z. HIROI, M. IZUMI, I. CHONG, M. TAKANO 407
Correlation Between Cu Valence, Hole Density and Tc of Bi2212 Superconductors
— Effect of Pb Substitution —
E. SATO, S. KAMBE, K. KOIKE, O. ISHII, S. OHSHIMA 411
Relation Between Superconductivity and Oxidation State of Pb of
(Pb,Cu)Sr2(Ca,Y)Cu20y and (Pb,Cu)(Sr,La)2CuOy Studied by Chemical Analysis
and XPS Measurements
M. KIKUCHI, M. NAGOSHI, M. SHIDA, K. KANEHASHI, Y. SYONO 415
Structure and Physical Properties of ( P b ^ M ^ ) - ^ ^ Phase
Y. ICHIMARU, S. KAMBE, K. YAMAGUCHI, O. ISHII 419
Observation of Electronic Structure of Cuprates by Auger Electron SpectroscopyS. KAMBE, J. ABE, S. OHSHIMA, O. ISHII 423
Hole Distribution and Magnetic-Field Irreversibility in CuCBa^Sr^^CYb, xCax)Cu206tz
T. NAKANE, K. FUJINAMI, M. KARPPINEN, H. YAMAUCHI 427
Effects of Iodine Intercalation on the Structural and Superconducting Properties
of Bi2Sr2 xLnxCuOz (Ln=Nd and Sm) Compound
Y. MURAOKA, M. KIKUCHI, M. HIROI, N. KOBAYASHI, K. HIRAGA, Y. SYONO 431
XVIII
3.3 Syntheses, Phase Relations, and Stability
Crystal Growth of (Bi,Pb)2Sr2CaCu20z and Their Superconducting PropertiesH. FAQIR, M. MANSORI, M. KIKUCHI, Y. SYONO, P. SATRE, A. SEBAOUN 435
ESR of Cu and Gd as a Probe of Chemical Reaction Rates in R-Ba-Cu-O (R=Y, Gd)and Related Systems
K. SUGAWARA, K. YAMAMOTO, K. HOTTA, H. HIROSE 439
Influence of Annealing in Water Vapor on the Structure of YBa2Cu3Ox SingleCrystals
S. EDO, M. MIYAZAWA, T. TAKAMA 443
X-Ray Photoelectron Spectroscopy Studies of the Bi2Sr2CaCu2O Single CrystalSurfaces Heated in Various Atmospheres
Y. YAMAUCHI, T. NAGAMI, S. KISHIDA, H. TOKUTAKA 447
Correlation Between Structural Stability and Water-Durability of High-T.Superconductors
X.G. ZHENG, H. MATSUI, S. TANAKA, M. SUZUKI, C.N. XU 451
4 Critical Current
4.1 Flux Pinning Mechanism
Quench Characteristics of Y1Ba2Cu3075Thin FilmT. Kiss, M. INOUE, K. HASEGAWA, K. OGATA, M. TAKEO, F. IRIE 457
Magnetic Investigations of Hg-Based HTSC: Evidence for Different Kinds ofPinning
C. ECKER, M. BAENITZ, K. LUDERS, E.S. OTABE, T. MATSUSHITA, H.R. KHAN,
E.V. ANTIPOV 461
Effect of Heavy Ion Irradiation on Flux Pinning Properties of Bi2212 andBi(Pb)2212 Single Crystals Having Various y2
J. SHIMOYAMA, Y. NAKAYAMA, T. MOTOHASHI, K. OTZSCHI, N. CHIKUMOTO,
M. KONCZYKOWSKI, K. KISHIO 465
Role of Intrinsic Pinning for Melting Transition of YBa2Cu30693 in the ParallelField to CuO2 Layers
T. ISHIDA, K. KITAMURA, K. OKUDA, H. ASAOKA, A.I. RYKOV, S. TAJIMA 469
Flux Pinning and Irreversibility Line in Superconducting Pb-Bi AlloysA. MATSUDA, T. MURANAKA, T. AKUNE, N. SAKAMOTO 473
Vortex Behaviors in Single Crystalline Bi2Sr2CaCu20g+x Investigated ThroughSpin-Probe ESR Method
A. NISHIDA, C. TAKA, T. YASUDA, K. HORAI 477
Scaling Law for Local Critical Current Distribution in Bi-2223/Ag Wires Estimatedby V-I Characteristics
H. OKAMOTO, F. IRIE, T. KISS, K. HASEGAWA, M. KANAZAWA 481
XIX
Evidence for Planar Pinning in Heavily Pb-Doped Bi2Sr2CaCu20g+ Single Crystals
K. ITAKA, H. TAOKA, S. OOI, T. SHIBAUCHI, T. TAMEGAI 485
Irreversibility Field and Pinning Potential in Bi-2212 Superconducting Single Crystal
T. HIRANO, T. MATSUSHITA, Y. NAKAYAMA, J. SHIMOYAMA, K. KISHIO 489
Neutron Irradiation Effect on the Pinning Properties of Ndl23
N. CHIKUMOTO, T. TERAI, T. KOBAYASHI, M. MURAKAMI 493
Critical Current Density of Y123 Bicrystal Films Grown by LPE Method
T. TAKAGI, J.G. WEN, T. MACHI, Y. TAKAHASHI, I. HIRABAYASHI, N. KOSHIZUKA 497
Normal Transition of Large-Area Superconducting Films Under Non-Stationary
Conditions
N.A. BUZNIKOV, A.A. PUKHOV, A.L. RAKHMANOV 501
The Pinning of Flux Lines by Planar and Point DefectsK.I. KUGEL, A.A. ZHUKOV, A.L. RAKHMANOV 505
Numerical Simulation of Fluxoid Behaviors in BI2212 Single Crystal
K. TAKASE, K. DEMACHI, K. MIYA 509
Magneto-Optical Characterization of (Nd033Eu033Gd03J)Ba2Cu3O Bulk
Superconductors with Different Gd-211 Content
S. KOISHIKAWA, A. DAS, M. MURALIDHAR, M.R. KOBLISCHKA, M. MURAKAMI,
T. NAGATOMO 513
Direct Observation of Flux Patterns to Understand the Effect of Y Addition on the
Jc(B) Properties of Melt-Textured (Nd033Eu033Sm033)Ba2Cu3Oy
A. DAS, M.R. KOBLISCHKA, M. MURALIDHAR, S. KOISHIKAWA, M. MURAKAMI 517
Comparison of the Irreversibility Line Between Magnetization and Magnetoresistance
Measurement for Nd-Ba-Cu-O Crystals
K. WAKI, T. HIGUCHI, S.I. Yoo, M. MURAKAMI 521
Penetration Dynamics of RE-Ba-Cu-0 Superconductors on Pulsed Field
Magnetization
H. FUKAI, K. NAGASHIMA, N. HAYASHI, M. MURAKAMI, T. NAGATOMO 525
Characteristics of the Weibull Parameters Deduced from the I-V Curves Measured
on the Sintered GdBa2Cu30M
Y. MATSUMOTO, H. MIYAMOTO, N. MURATA 529
Magnetic Field Dependence of Critical Current Density of NbTi Thin Films as a
Parameter of Angle
M. TAKEDA, K. NISHIGAKI 533
On Improving Irreversibility Field in Nd442 Rich Ndl23 Systems with a Modified
Growth Technique
H.S. CHAUHAN, M. MURAKAMI 537
Enhancement in Critical Current Density of Bi2Sr2CaCu,Og+x Single Crystal by
Neutron Irradiation Followed by Thermal Annealing — Effect of Neutron
Fluence —
K. OGIKUBO, T. KOBAYASHI, T. TERAI, S. TANAKA, K. KISHIO 541
XX
Bitter Decoration Patterns of Y-System Thin FilmsK. MICHISHITA, Y. SASAKI, Y. HIGASHIDA, Y. KUBO, K. NAKAMURA, K. TAKEDA 545
Superconducting Properties of NdBa2Cu3Ox Thin Films Prepared by Pulsed LaserDeposition Method
Y. ICHINO, K. MATSUMOTO, Y. TAKAHASHI, S.B. KIM, H. IKUTA, I. HIRABAYASHI,
U. MIZUTANI 549
4.2 Vortex Physics
*Small-Angle Neutron Scattering Observation of Vortices in Bi2Sr2CaCu20g+g
J. SUZUKI, N. METOKI, S. MIYATA, M. WATAHIKI, M. TACHIKI, K. KIMURA,
N. KATAOKA, K. KADOWAKI 553
Effect of Geometry and Dimensionality on the Magnetic Response of HTSC ThinFilms
T. HERZOG, H.A. RADOVAN, P. ZIEMANN 559
*Transversal and Longitudinal Vortex Correlation in the Mixed State of HighTemperature Superconductors
D. LOPEZ, W.-K. KWOK, G. CRABTREE 565
Nature of Vortex Liquid in Heavy-Ion Irradiated Bi2Sr2CaCu2O8+y
T. TAMEGAI, M. SATO, N. KAMEDA, T. SHIBAUCHI, S. OOI, M. KONCZYKOWSKI 571
Dynamical Resistivity Behavior Above and Below Vortex Lattice Melting Transitionin Single Crystals Bi2Sr2CaCu2Og+g
J. MIRKOVIC, K. KIMURA, K. KADOWAKI 575
Monte Carlo Simulation on the First-Order Flux-Lattice Melting iSuperconductors
X. Hu, M. TACHIKI 579
Electron Irradiation Effects on the Vortex Phase Diagram in UntwinnedYBa,Cu,0
2 3 y
T. NISHIZAKI, T. NAITO, S. OKAYASU, A. IWASE, N. KOBAYASHI 585
First-Order Decoupling Transition in the Vortex State of Bi2Sr2CaCu2Og+
T. SHIBAUCHI, T. NAKANO, M. SATO, T. KISU, N. KAMEDA, N. OKUDA, S. OOI,
T. TAMEGAI 589
Critical Scaling Analysis of Transport Characteristics Before and After Heavy-IonIrradiation in a YBa2Cu307 g Thin Film
T. SUEYOSHI, N. ISHIKAWA, A. IWASE, Y. CHIMI, T. Kiss, T. FUJIYOSHI, K. MIYAHARA 593
Optical Response and Transport Properties of Epitaxial YBa2Cu3O7 gThinFilms with Columnar Defects
T. FUJIYOSHI, T. SUEYOSHI, N. ISHIKAWA, A. IWASE, Y.CHIMI.
T. Kiss, K. MIYAHARA 597
Study on the Magnetization of HTSC Films by a New Method Based on theTunnel Diode Oscillator with an Open-Flat Coil
S. GEVORGYAN, A. MOVSISYAN, T. KISS, Y. HANAYAMA, T. MATSUSHITA, M. TAKEO,
VS. VYSOTSKY 601
XXI
Transport E(J) Characteristics of High-7 Superconductors in a Wide B-T Plane
Up to 27T
M. INOUE, K. HASEGAWA, T. KISS, M. TAKEO, F. IRIE, S. AWAJI, K. WATANABE 605
A Systematic Study of Vortex States by Means of Josephson Plasma Resonance
I. KAKEYA, R. NAKAMURA, K. KADOWAKI 609
The Second Magnetization Peak Effect Observed in (La, xSrx)2CuO4 Single
Crystal Under H//ab
Y. TOGAWA, T. SASAGAWA, J. SHIMOYAMA, K. KISHIO 613
Magnetization and Entropy Changes at the First-Order Phase-Transition of Vortex-
Lattice in (La, xSrx)2CuO4 Single Crystals
T. SASAGAWA, Y. TOGAWA, J. SHIMOYAMA, K. KITAZAWA, K. KISHIO 617
Vortex Phase Diagram in Bi2Sr2CaCu20 Probed by ac-Susceptibility Measurements
T. SASAGAWA, T. FUJITA, H. KOBAYASHI, J. SHIMOYAMA, K. KITAZAWA, K. KISHIO .... 621
Simulation of Magnetization of Bi2212 Single Crystal by the Fluxoid Dynamics
Method
H. SUGIYAMA, K. DEMACHI, K. TAKASE, K. MIYA 625
4.3 Weak Links
Magnetic Relaxation in Superconducting Fullerenes RbjC^ and ]
N. SAKAMOTO, T. MURANAKA, T. AKUNE, M. BAENITZ, K. LUDERS 629
Microstructures and Intergranular Jc of YBCO Films on MgO Bicrystal Grown by
Liquid Phase Epitaxy
J.G. WEN, T. TAKAGI, N. KOSHIZUKA 633
Transport Characteristics in YBCO Thin Films Under Applying dc and ac Currents
T. NAKAMURA, T. HOSHINO, I. MUTA, T. KISS, T. MATSUSHITA, M. TAKEO 637
Characterization and Evaluation of Transport Current in Oxide Superconducting
Wires
Y. TANAKA, M. MIMURA, A. KIMURA 641
Author Index 1-1Key Word Index 1-9