LINEAR FIELD-DEPENDENCE OF FLUX FLOW RESISTANCE IN HIGH-TEMPERATURE SUPERCONDUCTORS

被引:1
|
作者
DECCA, R [1 ]
ISOARDI, R [1 ]
DELACRUZ, F [1 ]
机构
[1] INST BALSEIRO, RA-8400 BARILOCHE, RIO NEGRO, ARGENTINA
关键词
D O I
10.1016/0038-1098(93)90930-L
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The V-I characteristic curves of polycrystalline La1.8Sr0.2CuO4-delta show that the dissipation in the superconducting grain boundaries is quenched at high fields and temperatures. This new superconducting state is explained taking into account that the magnetization is the relevant parameter determining the quantum interference in the weak links. The only dissipation left in the sample after quenching that in the links is quantitatively understood within the vortex flow models.
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页码:103 / 107
页数:5
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