THERMALLY ASSISTED VORTEX DIFFUSION IN LAYERED HIGH-TC SUPERCONDUCTORS

被引:53
作者
CHEN, BX [1 ]
DONG, JM [1 ]
机构
[1] CTR THEORET PHYS, CCAST WORLD LAB, BEIJING, PEOPLES R CHINA
来源
PHYSICAL REVIEW B | 1991年 / 44卷 / 18期
关键词
D O I
10.1103/PhysRevB.44.10206
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Using a dynamical equation we study the voltage-current characteristics of high-T(c) superconductors below the critical temperature T(c) due to thermally assisted vortex motion in a sinusoidal pinning potential, which is a good approximation to the intrinsic pinning caused by the layered structure when the magnetic field is parallel to the layers. The power-law I-V characteristics and continuous crossover from flux creep to flux flow in high-T(c) superconductors can be interpreted in a natural way.
引用
收藏
页码:10206 / 10209
页数:4
相关论文
共 17 条
[1]   HARD SUPERCONDUCTIVITY - THEORY OF MOTION OF ABRIKOSOV FLUX LINES [J].
ANDERSON, PW ;
KIM, YB .
REVIEWS OF MODERN PHYSICS, 1964, 36 (1P1) :39-&
[2]   THEORY OF MOTION OF VORTICES IN SUPERCONDUCTORS [J].
BARDEEN, J ;
STEPHEN, MJ .
PHYSICAL REVIEW, 1965, 140 (4A) :1197-+
[3]   ELASTIC ENERGY OF VORTEX STATE IN TYPE-2 SUPERCONDUCTORS .1. HIGH INDUCTIONS [J].
BRANDT, EH .
JOURNAL OF LOW TEMPERATURE PHYSICS, 1977, 26 (5-6) :709-733
[4]   ELASTIC ENERGY OF VORTEX STATE IN TYPE-2 SUPERCONDUCTORS .2. LOW INDUCTIONS [J].
BRANDT, EH .
JOURNAL OF LOW TEMPERATURE PHYSICS, 1977, 26 (5-6) :735-753
[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]   THERMALLY ACTIVATED FLUX CREEP IN STRONGLY LAYERED HIGH-TEMPERATURE SUPERCONDUCTORS [J].
CHAKRAVARTY, S ;
IVLEV, BI ;
OVCHINNIKOV, YN .
PHYSICAL REVIEW B, 1990, 42 (04) :2143-2148
[7]   VORTEX-GLASS SUPERCONDUCTIVITY - A POSSIBLE NEW PHASE IN BULK HIGH-TC OXIDES [J].
FISHER, MPA .
PHYSICAL REVIEW LETTERS, 1989, 62 (12) :1415-1418
[8]   RESISTIVE BEHAVIOR OF HIGH-TC SUPERCONDUCTORS - INFLUENCE OF A DISTRIBUTION OF ACTIVATION-ENERGIES [J].
GRIESSEN, R .
PHYSICAL REVIEW LETTERS, 1990, 64 (14) :1674-1677
[9]   PINNING AND THERMAL FLUCTUATIONS OF A FLUX LINE IN HIGH-TEMPERATURE SUPERCONDUCTORS [J].
INUI, M ;
LITTLEWOOD, PB ;
COPPERSMITH, SN .
PHYSICAL REVIEW LETTERS, 1989, 63 (21) :2421-2424
[10]   FLUX CREEP AND FLUX PINNING IN LAYERED HIGH-TEMPERATURE SUPERCONDUCTORS [J].
IVLEV, BI ;
KOPNIN, NB .
PHYSICAL REVIEW LETTERS, 1990, 64 (15) :1828-1830