AC SUSCEPTIBILITY OF HIGH-TEMPERATURE CERAMIC SUPERCONDUCTORS

被引：4

作者：

MULLER, KH

机构：

[1] CSIRO Division of Applied Physics, Sydney

来源：

PHYSICA C | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)90931-N

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The ac susceptibility, chi = chi' + i-chi'', of high-temperature ceramic superconductors is calculated employing a critical state model which describes the intergranular flux profiles inside a sample during an ac cycle. Intergranular flux creep causes a weak frequency dependence of the ac susceptibility. Close to T(c) strong flux creep results in a vanishing pinning force density which manifests itself in a reversible intergranular flux behaviour.

引用

页码：1609 / 1610

页数：2

共 6 条

[1] THEORY OF FLUX CREEP IN HARD SUPERCONDUCTORS [J].