Nernst effect of a new iron-based superconductor LaO(1-x)F(x)FeAs

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	Nernst effect of a new iron-based superconductor LaO(1-x)F(x)FeAs
	Zhu, ZW ; Xu, ZA ; Lin, X ; Cao, GH ; Feng, CM ; Chen, GF ; Li, Z ; Luo, JL ; Wang, NL
刊名	NEW JOURNAL OF PHYSICS
	2008
卷号	10
关键词	DENSITY
ISSN号	1367-2630
通讯作者	Xu, ZA (reprint author), Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China.
中文摘要	We report the first Nernst effect measurement on a new iron-based superconductor LaO(1-x)F(x)FeAs (x = 0(1). In the normal state, the Nernst signal is negative and very small. Below T(c), a large positive peak caused by vortex motion is observed. The flux flowing regime is quite large compared to the conventional type-II superconductors. The sharp decrease in the Nernst signal at the depairing magnetic field H(c2) is not obvious even for temperatures close to T(c). Furthermore, a clear deviation of the Nernst signal from normal state background and an anomalous suppression of off-diagonal thermoelectric current in the normal state between T(c) and 50K are observed. We argue that this anomaly in the normal state Nernst effect could correlate with the spin-density wave (SDW) fluctuations although the contribution of superconducting fluctuations cannot be excluded.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/49803]
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	Zhu, ZW,Xu, ZA,Lin, X,et al. Nernst effect of a new iron-based superconductor LaO(1-x)F(x)FeAs[J]. NEW JOURNAL OF PHYSICS,2008,10.
APA	Zhu, ZW.,Xu, ZA.,Lin, X.,Cao, GH.,Feng, CM.,...&Wang, NL.(2008).Nernst effect of a new iron-based superconductor LaO(1-x)F(x)FeAs.NEW JOURNAL OF PHYSICS,10.
MLA	Zhu, ZW,et al."Nernst effect of a new iron-based superconductor LaO(1-x)F(x)FeAs".NEW JOURNAL OF PHYSICS 10(2008).