Superconducting cluster in YBa2Cu3O7−x ceramic

被引：0
作者：
D. R. Dzhuraev
B. Yu. Sokolov
机构：
[1] Tashkent State University,
来源：
Technical Physics | 2000年 / 45卷
关键词：
Electrical Conductivity; Experimental Investigation; Critical State; Spatial Localization; Superconducting State;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The method of point laser heating of a sample is used to perform experimental investigations of the electrical conductivity of YBa2Cu3O7−x ceramic in the vicinity of its critical state. It is found that, in the vicinity of transition to the superconducting state, the electrical conductivity of the ceramic exhibits a clusterlike behavior substantially nonuniform over the sample cross section. The topology of a superconducting cluster is investigated, as well as its spatial localization in the sample. A model of the formation of a superconducting cluster in a ceramic superconductor is suggested.
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页码：623 / 626
页数：3
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