RESISTIVITY OF HIGH-TEMPERATURE SUPERCONDUCTORS - IS THE VORTEX STATE A LIQUID

被引：63
|
作者：
CHAKRAVARTY, S
IVLEV, BI
OVCHINNIKOV, YN
机构：
[1] Department of Physics, University of California at Los Angeles, Los Angeles, CA 90024-1547
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 26期
关键词：
D O I：
10.1103/PhysRevLett.64.3187
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We discuss thermally activated resistivity of strongly layered high-temperature superconductors such as Bi2Sr2CaCu2O8 in the limit in which the dominant pinning mechanism is the intrinsic pinning due to the layered structure. From a comparison of our theory with the experimental data we conclude that the vortex state of such superconductors must be disordered over a substantial range of parametersa melted liquid. The magnetic field, the temperature, and the current dependence of the calculated activation energy are consistent with experiments. © 1990 The American Physical Society.
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页码：3187 / 3190
页数：4
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