Enhancements of the superconducting transition temperature within the two-band model

被引：44

作者：

Bussmann-Holder, A

Micnas, R

Bishop, AR

机构：

[1] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

[2] Adam Mickiewicz Univ, Inst Phys, PL-61614 Poznan, Poland

[3] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

来源：

EUROPEAN PHYSICAL JOURNAL B | 2004年 / 37卷 / 03期

关键词：

D O I：

10.1140/epjb/e2004-00065-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The two-band model as introduced by Suhl, Matthias and Walker [Phys. Rev. Lett. 3, 552 (1959)] accounts for multiple energy bands in the vicinity of the Fermi energy which could contribute to electron pairing in superconducting systems. Here, extensions of this model are investigated wherein the effects of coupled superconducting order parameters with different symmetries and the presence of strong electron-lattice coupling on the superconducting transition temperature T-c are studied . Substantial enhancements of T-c are obtained from both effects.

引用

页码：345 / 348

页数：4

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