DYNAMIC MEASUREMENTS OF FLUX CREEP AND FLOW IN YBA2CU3O7-DELTA SINGLE-CRYSTALS

被引：14

作者：

POZEK, M ^{[1
]}

UKRAINCZYK, I ^{[1
]}

RAKVIN, B ^{[1
]}

DULCIC, A ^{[1
]}

机构：

[1] UNIV ZAGREB, FAC NAT SCI & MATH, DEPT PHYS, YU-41001 ZAGREB, CROATIA

来源：

EUROPHYSICS LETTERS | 1991年 / 16卷 / 07期

关键词：

D O I：

10.1209/0295-5075/16/7/013

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Decay of magnetization was measured in YBa2Cu307-delta single crystals under the conditions of field sweep. In varying the sweep rate over eight orders of magnitude, the system could be carried from flux creep to flux flow regime. A broad crossover is observed in agreement with a distribution in pinning potentials. This novel technique enabled the first experimental determination of the relaxation time in the flux creep regime (tau approximately 10(-3) s).

引用

页码：683 / 688

页数：6

共 22 条

[1] FLUX DIFFUSION IN HIGH-TC SUPERCONDUCTORS
BRANDT, EH
[J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1990, 80 (02): : 167 - 175
[2] FIELD-INDUCED BROADENING OF THE RESISTIVE TRANSITION AND 2-DIMENSIONAL NATURE OF FLUX PINNING IN Y2BA4CU8O16 FILMS
BUDHANI, RC
WELCH, DO
SUENAGA, M
SABATINI, RL
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (14) : 1666 - 1669
[3] FLUX CREEP IN THE CRITICAL STATE OF A HIGH-TEMPERATURE SUPERCONDUCTOR
CAMPBELL, IA
FRUCHTER, L
CABANEL, R
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (13) : 1561 - 1564
[4] DULCIC A, 1988, PHYS REV B, V38, P5002, DOI 10.1103/PhysRevB.38.5002
[5] FLUX CREEP AND CURRENT RELAXATION IN HIGH-TC SUPERCONDUCTORS
FEIGELMAN, MV
GESHKENBEIN, VB
VINOKUR, VM
[J]. PHYSICAL REVIEW B, 1991, 43 (07): : 6263 - 6265
[6] MICROWAVE LOSS AND OXYGEN ANNEALING IN YBA2CU3OX SINGLE-CRYSTALS
GLARUM, SH
SCHNEEMEYER, LF
WASZCZAK, JV
[J]. PHYSICAL REVIEW B, 1990, 41 (04): : 1837 - 1841
[7] RESISTIVE BEHAVIOR OF HIGH-TC SUPERCONDUCTORS - INFLUENCE OF A DISTRIBUTION OF ACTIVATION-ENERGIES
GRIESSEN, R
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (14) : 1674 - 1677
[8] THERMALLY ACTIVATED FLUX MOTION NEAR THE ABSOLUTE-ZERO
GRIESSEN, R
[J]. PHYSICA C, 1991, 172 (5-6): : 441 - 449
[9] DISTRIBUTION OF ACTIVATION-ENERGIES FOR THERMALLY ACTIVATED FLUX MOTION IN HIGH-TC SUPERCONDUCTORS - AN INVERSION SCHEME
HAGEN, CW
GRIESSEN, R
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (24) : 2857 - 2860
[10] BROADENING PHENOMENA OF THE RESISTIVE TRANSITION IN SINGLE-CRYSTALLINE YBA2CU3O7 IN MAGNETIC-FIELDS
KADOWAKI, K
LI, JN
FRANSE, JJM
[J]. PHYSICA C, 1990, 170 (3-4): : 298 - 306

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