Low-temperature dependence of the optical conductivity in superconductor MgB2

被引：3
|
作者：
Shahzamanian, MA
Yavary, H [1 ]
Moarrefi, M
机构：
[1] Univ Isfahan, Dept Phys, Esfahan 81714, Iran
[2] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England
来源：
PHYSICA B-CONDENSED MATTER | 2005年 / 358卷 / 1-4期
关键词：
MgB2; two-band superconductor; anisotropic d-wave; optical conductivity;
D O I：
10.1016/j.physb.2004.12.034
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The real part of the optical conductivity is calculated by using the Kubo formula approach, and in the framework of the two-bands model. It is shown that a single-gap model is insufficient to describe the optical behavior ;of superconductor MgB2 film, but the two-gap model with different symmetries is sufficient to explain the experimental results. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：103 / 108
页数：6
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