Plasma excitations in the superconducting state of two-band layered superconductors

被引：0
|
作者：
Koyama, T. [1 ,3 ]
Matsumoto, H. [1 ,3 ]
Machida, M. [2 ,3 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Japan Atom Energy Agcy, CCSE, Tokyo 1100015, Japan
[3] JST CREST, Kawaguchi, Saitama 3320012, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2009年 / 469卷 / 15-20期
关键词：
Two-band superconductors; Plasma mode; Dielecrtic function;
D O I：
10.1016/j.physc.2009.05.168
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigate the low-frequency plasma modes polarized in the epsilon-direction in two-band layered superconductors. The dynamic dielectric function epsilon(omega,q) is derived at T = 0, using the generalized random-phase-approximation which is consistent with the Hartree-Fock single-particle states. It is shown that the dielectric function has two zero-points which correspond to the longitudinal plasma modes in two-band layered Superconductors. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1048 / 1051
页数：4
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