NONLINEAR EFFECTS ON CONDUCTIVITY OF A SUPERCONDUCTOR ABOVE ITS TRANSITION TEMPERATURE

被引：58
作者：
HURAULT, JP
机构：
[1] Department of Physics, University of California, Los Angeles
[2] Service de Physique des Solides Faculté des Sciences
来源：
PHYSICAL REVIEW | 1969年 / 179卷 / 02期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRev.179.494
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the conductivity σ of a metal for temperatures slightly greater than its transition temperature Tc. In this region, the conductivity can reach very high values, because of the fluctuations of the order parameter. But, as we increase the electric field, the velocity of the accelerated electrons increases, the lifetime of the fluctuations decreases, and the conductivity decreases. For sufficiently high fields, the conductivity is thus found to vary as E(ν-4)3, ν being the dimension of the sample. © 1969 The American Physical Society.
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页码：494 / +
页数：1
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