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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
2009
发表期刊NEW JOURNAL OF PHYSICS
ISSN1367-2630
卷号11期号:1页码:-
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.
部门归属[Chang, J; Eremin, I] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany; [Eremin, I] Tech Univ Carolo Wilhelmina Braunschweig, Inst Math & Theoret Phys, D-38106 Braunschweig, Germany; [Thalmeier, P] Max Planck Inst Chem Phys Fester Stoffe, D-01187 Dresden, Germany
学科领域Physics
资助者Volkswagen Foundation[I/82203]; NSF-DMR[0645461]; RMHE Program[N1 2.1.1/2985] ; Volkswagen Foundation[I/82203]; NSF-DMR[0645461]; RMHE Program[N1 2.1.1/2985] ; Volkswagen Foundation[I/82203]; NSF-DMR[0645461]; RMHE Program[N1 2.1.1/2985] ; Volkswagen Foundation[I/82203]; NSF-DMR[0645461]; RMHE Program[N1 2.1.1/2985]
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收录类别SCI
资助者Volkswagen Foundation[I/82203]; NSF-DMR[0645461]; RMHE Program[N1 2.1.1/2985] ; Volkswagen Foundation[I/82203]; NSF-DMR[0645461]; RMHE Program[N1 2.1.1/2985] ; Volkswagen Foundation[I/82203]; NSF-DMR[0645461]; RMHE Program[N1 2.1.1/2985] ; Volkswagen Foundation[I/82203]; NSF-DMR[0645461]; RMHE Program[N1 2.1.1/2985]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5323
专题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):-.
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