FLUX CREEP AND IRREVERSIBILITY LINE IN HIGH-TEMPERATURE OXIDE SUPERCONDUCTORS

被引：94

作者：

MATSUSHITA, T

FUJIYOSHI, T

TOKO, K

YAMAFUJI, K

机构：

[1] Department of Electronics, Faculty of Engineering, Kyushu University, Higashi-ku, Fukuoka 812

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 20期

关键词：

D O I：

10.1063/1.103011

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The irreversibility line in high-temperature oxide superconductors is theoretically investigated from a viewpoint of dependence on the flux-pinning strength and a general relation between the effective pinning potential and the critical current density is derived. It is shown that the irreversibility magnetic field at 77 K in strongly pinned oxide superconductors is sufficiently high for application.

引用

收藏

页码：2039 / 2041

页数：3

相关论文

共 22 条

[1]

CAMPBELL AM, 1978, PHILOS MAG B, V37, P149, DOI 10.1080/01418637808226649

[2] FLUX VORTICES AND TRANSPORT CURRENTS IN TYPE II SUPERCONDUCTORS [J].

CAMPBELL, AM ;

EVETTS, JE .

ADVANCES IN PHYSICS, 1972, 21 (90) :199-+

[3] RESPONSE OF PINNED FLUX VORTICES TO LOW-FREQUENCY FIELDS [J].

CAMPBELL, AM .

JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS, 1969, 2 (08) :1492-&

[4] DIRECT OBSERVATION OF ELECTRONIC ANISOTROPY IN SINGLE-CRYSTAL Y1BA2CU3O7-X [J].

DINGER, TR ;

WORTHINGTON, TK ;

GALLAGHER, WJ ;

SANDSTROM, RL .

PHYSICAL REVIEW LETTERS, 1987, 58 (25) :2687-2690

[5] GEOMETRICALLY LARGE FLUX-LINE PINS [J].

KERCHNER, HR .

CRYOGENICS, 1989, 29 (3A) :251-257

[6] THERMALLY ASSISTED FLUX FLOW AT SMALL DRIVING FORCES [J].

KES, PH ;

AARTS, J ;

VANDENBERG, J ;

VANDERBEEK, CJ ;

MYDOSH, JA .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1989, 1 (05) :242-248

[7] SCALING LAWS FOR FLUX PINNING IN HARD SUPERCONDUCTORS [J].

KRAMER, EJ .

JOURNAL OF APPLIED PHYSICS, 1973, 44 (03) :1360-1370

[8] MAGNETIC PROPERTIES OF SUPERCONDUCTING LEAD-BASE ALLOYS [J].

LIVINGSTON, JD .

PHYSICAL REVIEW, 1963, 129 (05) :1943-&

[9] CRITICAL CURRENT DENSITIES IN THE SURFACE PINNING REGION OF A SUPERCONDUCTING PB-20-PERCENT-T1 ROD [J].

MATSUSHITA, T ;

TANAKA, T ;

YAMAFUJI, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1979, 46 (03) :756-763

[10] NONSATURATED PINNING CHARACTERISTICS BY NORMAL PRECIPITATES IN SUPERCONDUCTING NB-TA [J].

MATSUSHITA, T ;

HARADA, N ;

YAMAFUJI, K .

CRYOGENICS, 1989, 29 (3A) :328-333