Cooper-pair formation by anharmonic rattling modes in the beta-pyrochlore superconductor KOs(2)O(6)

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	Cooper-pair formation by anharmonic rattling modes in the beta-pyrochlore superconductor KOs(2)O(6)
	Chang, Jun; Eremin, Ilya; Thalmeier, Peter; Chang, J , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
刊名	NEW JOURNAL OF PHYSICS
	2009
卷号	11 期号:1 页码:-
ISSN号	1367-2630
英文摘要	We study the influence of anharmonic rattling phonons in the beta-pyrochlore superconductor KOs(2)O(6) using the strong-coupling Eliashberg approach. In particular, by analyzing the specific heat data, we find that the rattling phonon frequency changes discontinuously at the critical temperature of the first-order phase transition. Solving the strong-coupling Eliashberg equations with effective temperature-dependent alpha(2)F(omega), we investigate the consequence of this first-order phase transition for the anomalous temperature dependence of the superconducting gap. We discuss our results in the context of the recent experimental data.
学科主题	Physics
URL标识	查看原文
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5323]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Chang, J , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Chang, Jun,Eremin, Ilya,Thalmeier, Peter,et al. Cooper-pair formation by anharmonic rattling modes in the beta-pyrochlore superconductor KOs(2)O(6)[J]. NEW JOURNAL OF PHYSICS,2009,11(1):-.
APA	Chang, Jun,Eremin, Ilya,Thalmeier, Peter,&Chang, J , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2009).Cooper-pair formation by anharmonic rattling modes in the beta-pyrochlore superconductor KOs(2)O(6).NEW JOURNAL OF PHYSICS,11(1),-.
MLA	Chang, Jun,et al."Cooper-pair formation by anharmonic rattling modes in the beta-pyrochlore superconductor KOs(2)O(6)".NEW JOURNAL OF PHYSICS 11.1(2009):-.