On the two-parametric theory of superconductivity

被引：0
|
作者：
R. O. Zaitsev
机构：
[1] Russian Research Centre Kurchatov Institute,
来源：
Journal of Experimental and Theoretical Physics Letters | 2004年 / 79卷
关键词：
74.20.De; 71.10.Fd; 71.27.+a;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The concept of spin fluctuations in the Hubbard model is used for deriving a closed system of equations for the superconducting order parameter Δ and spin susceptibility. The limiting cases of low temperatures and temperatures close to the superconducting transition temperature are considered. The temperature dependences of the parameter Δ and the Knight shift are obtained. The conditions under which the second-order phase transition turns to the first-order phase transition are established.
引用
收藏
页码：113 / 116
页数：3
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