S-WAVE SUPERCONDUCTIVITY IN THE PRESENCE OF A STRONG COULOMB REPULSION

被引：3
|
作者：
LACROIX, C
BASTIDE, C
SIMOES, AD
机构：
[1] Laboratoire Louis Néel, CNRS, 38042 Grenoble Cedex
来源：
PHYSICA B | 1990年 / 163卷 / 1-3期
关键词：
D O I：
10.1016/0921-4526(90)90144-J
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We study the occurence of s-wave superconductivity in a single band Hubbard model, in the large U limit and with a nearest neighbour attraction Vs. This attraction Vs must exceed a critical value Vcs to make superconductivity stable. However Vcs is suppressed if second neighbour hopping is included in the Hubbard model. © 1990.
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收藏
页码：124 / 126
页数：3
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