Reentrant superconductivity from the anharmonic electron-phonon interaction

被引：11
|
作者：
Mahan, GD [1 ]
机构：
[1] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831
来源：
PHYSICAL REVIEW B | 1997年 / 56卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.56.8322
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Eliashberg equations are solved for the transition temperature of a superconductor for the case that the phonons are harmonic but the electron-phonon interaction is anharmonic. The anharmonic interaction increases the transition temperature for the same coupling strength. Reentrant behavior is predicted for large anharmonicity.
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页码：8322 / 8329
页数：8
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