MAGNETIC-FLUX DISTRIBUTION IN SINGLE-CRYSTALLINE, CERAMIC AND THIN-FILM HIGH-T-C-SUPERCONDUCTORS

被引：55

作者：

FORKL, A

机构：

[1] Max-Planck-Institut für Metallforschung, Stuttgart, D-70550

来源：

PHYSICA SCRIPTA | 1993年 / T49A卷

关键词：

D O I：

10.1088/0031-8949/1993/T49A/025

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By means of the magneto-optical Faraday effect the spatial magnetic flux density distribution is investigated at the surface of High-T-c-superconductors possessing different microstructure and geometry. In external fields a homogeneous flux front is observed in films and in single crystals whereas in sintered samples the properties of the grain boundary phase and the single grains determine the flux distribution. In particular calculations of the field distribution in dependence of the sample thickness and geometry explain the observed flux distribution and yield the critical current density.

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页码：148 / 158

页数：11

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