TRANSPORT JC(B,T) AND FLUX PINNING BEHAVIOR IN MELT-TEXTURED BI-SR-CA-CU-O HIGH-T(C) SUPERCONDUCTORS

被引：10

作者：

KOTTMAN, P

JONES, H

FROST, AJ

GROVENOR, CRM

机构：

[1] SLOVAK ACAD SCI, INST ELECTROTECH, CS-84239 BRATISLAVA, CZECHOSLOVAKIA

[2] UNIV OXFORD, DEPT MAT, OXFORD OX1 3PH, ENGLAND

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1992年 / 5卷 / 06期

关键词：

D O I：

10.1088/0953-2048/5/6/011

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The magnetic field dependence of the transport critical current densities (J(c)) in the temperature range 20-70 K has been measured on melt-textured Bi-Sr-Ca-Cu-O samples. J(c) decreased approximately exponentially with magnetic field. The characteristic magnetic field B*, determined as the magnetic field at which extrapolated J(c)(B) decreased to a certain level, increased slowly with decreasing temperature in the temperature range 70-30 K but a rapid increase below 30 K was observed. F(p)(B, T) and f(p)(b, T) dependences, with f(p) = F(p)/F(p max) and b = B/B*, are presented. A scaling behaviour of f(p)(b, T) similar to that of conventional superconductors was found.

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收藏

页码：381 / 385

页数：5

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