ac Response and Losses of Differently Pinned Type-II Superconductors

被引：2

作者：

Furtado, C. S. ^{[1
]}

机构：

[1] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 1972年 / 7卷 / 1-2期

关键词：

D O I：

10.1007/BF00629119

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of the penetration of flux and losses in ac fields (20-2000 cps) at 4.2K together with quasistatic magnetization curves on three samples of Ta92Nb8 having different degrees of pinning are presented. The results are explained in terms of surface shielding currents taking into account both the pinning strength and the flux-flow resistivity exhibited by the bulk. A quantitative approach is used in which the concept of flux-flow resistivity proves applicable when the sample is subjected to an ac magnetic field.

引用

页码：23 / 42

页数：20

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