Terahertz conductivity in FeSe(0.5)Te(0.)5 superconducting films

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	Terahertz conductivity in FeSe(0.5)Te(0.)5 superconducting films
	Pimenov, A ; Engelbrecht, S ; Shuvaev, AM ; Jin, BB ; Wu, PH ; Xu, B ; Cao, LX ; Schachinger, E
刊名	NEW JOURNAL OF PHYSICS
	2013
卷号	15
ISSN号	1367-2630
通讯作者	Pimenov, A (reprint author), Vienna Univ Technol, Inst Solid State Phys, A-1040 Vienna, Austria.
中文摘要	Complex conductivity of FeSe0.5Te0.5 superconducting films has been investigated using backward-wave-oscillator spectroscopy in the terahertz frequency range. The normal state conductivity corresponds well to the low-frequency limit of a Drude metal. In the superconducting state, the real part of the complex conductivity is not completely suppressed, indicating the existence of a strongly anisotropic gap. Weak features in the conductivity are consistent with the superconducting gap value close to 12 cm(-1)(1.5 meV). The experimental results are discussed within the framework of a two-gap model based on the s(+/-) symmetry of the order parameter.
资助信息	German and Austrian Science Funds [FOR 1162, I815-N16]; MOST 973 Project of China [2011CBA00107, 2011CBA00110]; National Natural Science Foundation [61071009, 11074284, 61027008]; Specialized Research Fund for Doctoral Program of Higher Education [20090091110040]
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57557]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Pimenov, A,Engelbrecht, S,Shuvaev, AM,et al. Terahertz conductivity in FeSe(0.5)Te(0.)5 superconducting films[J]. NEW JOURNAL OF PHYSICS,2013,15.
APA	Pimenov, A.,Engelbrecht, S.,Shuvaev, AM.,Jin, BB.,Wu, PH.,...&Schachinger, E.(2013).Terahertz conductivity in FeSe(0.5)Te(0.)5 superconducting films.NEW JOURNAL OF PHYSICS,15.
MLA	Pimenov, A,et al."Terahertz conductivity in FeSe(0.5)Te(0.)5 superconducting films".NEW JOURNAL OF PHYSICS 15(2013).