Impurity-induced localization in cuprate superconductors

被引：1
|
作者：
Malozovsky, YM
Fan, JD
机构：
[1] Dept. of Physics Southern University, A and M College, Baton Rouge
来源：
SOLID STATE COMMUNICATIONS | 1997年 / 104卷 / 03期
关键词：
disordered systems; high-T-c superconductors; quantum localization; electron-electron interactions; phase transition;
D O I：
10.1016/S0038-1098(97)00088-4
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The localization in a disordered metal by means of the perturbation approach is considered. It is shown that in the case of a given impurity potential a small disorder leads to localization in 2D as well as in 1D and causes the weak localization in 3D. In contrast, in the case of the impurity potential screened by electrons (interacting electrons) the disorder effect on polarizability can significantly be suppressed by the Coulomb vertex corrections to the bare impurity vertex as shown. The application of the results to 1D-3D and layered 2D cases are discussed. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：155 / 160
页数：6
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