Microwave response of superconducting pnictides: extended s± scenario

被引：21

作者：

Dolgov, O. V. ^{[3
]}

Golubov, A. A. ^{[1
,2
]}

Parker, D. ^{[4
]}

机构：

[1] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands

[2] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

[3] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[4] USN, Res Lab, Washington, DC 20375 USA

来源：

NEW JOURNAL OF PHYSICS | 2009年 / 11卷

关键词：

HIGH-TC-SUPERCONDUCTORS; IMPURITY SCATTERING; CONDUCTIVITY; DENSITY;

D O I：

10.1088/1367-2630/11/7/075012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider a two-band superconductor with relative phase pi between the two order parameters as a model for the superconducting state in ferropnictides. Within this model we calculate the microwave response and the NMR relaxation rate. The influence of intra- and interband impurity scattering beyond the Born and unitary limits is taken into account. We show that, depending on the scattering rate, various types of power law temperature dependences of the magnetic field penetration depth and the NMR relaxation rate at low temperatures may take place.

引用

页数：10

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