DOUBLE AND TRIPLE PEAKS IN THE AC LOSSES OF SOME SUPERCONDUCTORS

被引:20
作者
DANNA, G
ANDRE, MO
BENOIT, W
机构
[1] Département de Physique, Ecole Polytechnique Fédérale de Lausanne, Lausanne
来源
EUROPHYSICS LETTERS | 1994年 / 25卷 / 07期
关键词
D O I
10.1209/0295-5075/25/7/011
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We measure transverse a.c. losses of <<dirty>>, fully oxygenated untwinned YBa2Cu3O7-delta single crystals and 2H-NbSe2 single crystals using a low-frequency pendulum oscillator. The data constitute evidence for a peak effect of the critical current as a function of the temperature in these compounds. The existence of the peak effect explains some complex peak structures in the losses observed in <<dirty>> samples of moderately anisotropic three-dimensional superconductors.
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页码:539 / 543
页数:5
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