POWER-LAW IV CHARACTERISTICS IN THE SUPERCONDUCTING TRANSITION REGION OF BI-SR-CA-CU-O SINGLE-CRYSTAL UNDER MAGNETIC-FIELDS

被引：3
作者：
ANDO, Y
MOTOHIRA, N
KITAZAWA, K
TAKEYA, J
AKITA, S
机构：
[1] UNIV TOKYO, DEPT IND CHEM, BUNKYO KU, TOKYO 113, JAPAN
[2] CENT RES INST ELECT POWER IND, TOKYO 201, JAPAN
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1991年 / 30卷 / 9B期
关键词：
HIGH-TC SUPERCONDUCTOR; FLUX CREEP; KOSTERLITZ-THOULESS TRANSITION; FLUX FLOW; IV CHARACTERISTICS; DISSIPATION;
D O I：
10.1143/JJAP.30.L1635
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The resistive state in single-crystal Bi2Sr2CaCu2Oy with field applied perpendicular to the c-axis has been studied to investigate the origin of the Lorentz-force-independent dissipation. It was observed that the current-voltage characteristics obey a power law in the higher current density region in our experiment (J greater-than-or-equal-to 20 A.cm-2), and that the power-law exponent and the resistivity show an unusual dependence on the magnetic field. These observations strongly suggest that a Kosterlitz-Thouless-type mechanism plays an essential role in the Lorentz-force-independent dissipation.
引用
收藏
页码：L1635 / L1637
页数：3
相关论文
共 17 条
[1]   VORTEX MOTION AND KOSTERLITZ-THOULESS TRANSITION IN SUPERCONDUCTING SINGLE-CRYSTALS BI2SR2CACU2OX [J].
ARTEMENKO, SN ;
GORLOVA, IG ;
LATYSHEV, YI .
PHYSICS LETTERS A, 1989, 138 (08) :428-434
[2]   POWER LAWS IN THE RESISTIVE STATE IN HIGH-TC SUPERCONDUCTORS [J].
BAN, M ;
ICHIGUCHI, T ;
ONOGI, T .
PHYSICAL REVIEW B, 1989, 40 (07) :4419-4422
[3]   KOSTERLITZ-THOULESS TRANSITION IN THE SMECTIC VORTEX STATE OF A LAYERED SUPERCONDUCTOR [J].
BLATTER, G ;
IVLEV, BI ;
RHYNER, J .
PHYSICAL REVIEW LETTERS, 1991, 66 (18) :2392-2395
[4]   FIELD-INDUCED BROADENING OF THE RESISTIVE TRANSITION AND 2-DIMENSIONAL NATURE OF FLUX PINNING IN Y2BA4CU8O16 FILMS [J].
BUDHANI, RC ;
WELCH, DO ;
SUENAGA, M ;
SABATINI, RL .
PHYSICAL REVIEW LETTERS, 1990, 64 (14) :1666-1669
[5]   RESISTIVITY OF HIGH-TEMPERATURE SUPERCONDUCTORS - IS THE VORTEX STATE A LIQUID [J].
CHAKRAVARTY, S ;
IVLEV, BI ;
OVCHINNIKOV, YN .
PHYSICAL REVIEW LETTERS, 1990, 64 (26) :3187-3190
[6]   FLUX FLOW IN LAYERED HIGH-TC SUPERCONDUCTORS [J].
IVLEV, BI ;
KOPNIN, NB .
PHYSICAL REVIEW B, 1990, 42 (16) :10052-10059
[7]   ANISOTROPIC SUPERCONDUCTING PROPERTIES OF HIGH-TC TL-BA-CA-CU-O SINGLE-CRYSTAL [J].
IWASAKI, H ;
KOBAYASHI, N ;
KIKUCHI, M ;
KAJITANI, T ;
SYONO, Y ;
MUTO, Y ;
NAKAJIMA, S .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1989, 159 (03) :301-305
[8]   ABSENCE OF CURRENT DIRECTION DEPENDENCE OF THE RESISTIVE STATE OF HIGH-TEMPERATURE SUPERCONDUCTORS IN MAGNETIC-FIELDS [J].
IYE, Y ;
NAKAMURA, S ;
TAMEGAI, T .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1989, 159 (04) :433-438
[9]   DISSIPATION IN HIGHLY ANISOTROPIC SUPERCONDUCTORS [J].
KES, PH ;
AARTS, J ;
VINOKUR, VM ;
VANDERBEEK, CJ .
PHYSICAL REVIEW LETTERS, 1990, 64 (09) :1063-1066
[10]   POSSIBLE ORIGINS OF RESISTIVE TAILS AND CRITICAL CURRENTS IN HIGH-TEMPERATURE SUPERCONDUCTORS IN A MAGNETIC-FIELD [J].
KIM, DH ;
GRAY, KE ;
KAMPWIRTH, RT ;
MCKAY, DM .
PHYSICAL REVIEW B, 1990, 42 (10) :6249-6258
12