QUANTUM TUNNELING OF VORTICES IN THE TL2CABA2CU2O8 SUPERCONDUCTOR

被引：35

作者：

TEJADA, J ^{[1
]}

CHUDNOVSKY, EM ^{[1
]}

GARCIA, A ^{[1
]}

机构：

[1] CUNY HERBERT H LEHMAN COLL,DEPT PHYS & ASTRON,BRONX,NY 10468

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.47.11552

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic-relaxation measurements of a T1-based high-T(c) superconductor show temperature-independent flux creep below 6 K. The effect is analyzed in terms of the overdamped quantum diffusion of two-dimensional vortices. Good agreement between theory and experiment is found.

引用

页码：11552 / 11554

页数：3

共 23 条

[11] TEMPERATURE-DEPENDENCE OF QUANTUM DECAY-RATES IN DISSIPATIVE SYSTEMS [J].

GRABERT, H ;

OLSCHOWSKI, P ;

WEISS, U .

PHYSICAL REVIEW B, 1985, 32 (05) :3348-3350

[12]

GRIESSEN R, 1990, CRYOGENICS, V30, P561

[13] NONACTIVATED MAGNETIC-RELAXATION IN A HIGH-TC SUPERCONDUCTOR [J].

HAMZIC, A ;

FRUCHTER, L ;

CAMPBELL, IA .

NATURE, 1990, 345 (6275) :515-516

[14] QUANTUM FLUX CREEP IN LAYERED HIGH-TC SUPERCONDUCTORS [J].

IVLEV, BI ;

OVCHINNIKOV, YN ;

THOMPSON, RS .

PHYSICAL REVIEW B, 1991, 44 (13) :7023-7027

[15]

KIM YB, 1969, SUPERCONDUCTIVITY, pCH19

[16] MAGNETIC-PROPERTIES AND UPPER CRITICAL FIELDS OF SINTERED TL-CA-BA-CU-O SUPERCONDUCTORS [J].

KUMAKURA, H ;

TOGANO, K ;

TAKAHASHI, K ;

SHIMIZU, H ;

UEHARA, M ;

MAEDA, H ;

NAKAO, M .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1988, 27 (05) :L857-L859

[17] MODEL SYSTEM FOR SLOW DYNAMICS [J].

LOTTIS, DK ;

WHITE, RM ;

DAHLBERG, ED .

PHYSICAL REVIEW LETTERS, 1991, 67 (03) :362-365

[18]

MITIN AV, 1987, ZH EKSP TEOR FIZ, V66, P335

[19] FLUX MOTION BY QUANTUM TUNNELING [J].

MOTA, AC ;

JURI, G ;

VISANI, P ;

POLLINI, A ;

TERUZZI, T ;

AUPKE, K ;

HILTI, B .

PHYSICA C, 1991, 185 :343-348

[20]

PARKIN SS, 1988, PHYS REV B, V378, P6531

← 1 2 3 →