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

页码：103 / 108

页数：6

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