Charge Order versus Superconductivity in Inhomogeneous Systems

被引：2
|
作者：
Litak, Grzegorz [1 ]
机构：
[1] Tech Univ Lublin, Dept Appl Mech, PL-20618 Lublin, Poland
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2009年 / 22卷 / 03期
关键词：
CDW; Disorder; Hubbard model; Percolation; HUBBARD-MODEL;
D O I：
10.1007/s10948-008-0429-6
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We examine the disordered system with defined attractive centers of carries attraction. By changing concentration of such centers one can model the appearance of a superconducting order. To study electron correlations and to describe disorder effects, the Negative U Hubbard model and the Coherent Potential Approximation (CPA) have been applied. Our approach includes the charge fluctuations on the equal foot.
引用
收藏
页码：265 / 267
页数：3
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