As-75 NQR and NMR Studies of Superconductivity and Electron Correlations in Iron Arsenide LiFeAs

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	As-75 NQR and NMR Studies of Superconductivity and Electron Correlations in Iron Arsenide LiFeAs
	Li, Z ; Ooe, Y ; Wang, XC ; Liu, QQ ; Jin, CQ ; Ichioka, M ; Zheng, GQ
刊名	JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
	2010
卷号	79 期号:8
关键词	LAYERED QUATERNARY COMPOUND SINGLE-CRYSTAL GAPS
ISSN号	0031-9015
通讯作者	Li, Z: Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	We report the As-75-NQR and NMR studies on the iron arsenide superconductor LiFeAs with T-c similar to 17 K. The spin lattice relaxation rate, 1/T-1, decreases below T-c without a coherence peak, and can be fitted by gaps with s(+/-)-wave symmetry in the presence of impurity scattering. In the normal state, both 1/T1T and the Knight shift decrease with decreasing temperature but become constant below T <= 50 K. Estimate of the Korringa ratio shows that the spin correlations are weaker than those in other families of iron arsenides, which may account for the lower T-c in this material.
收录类别	SCI
资助信息	Ministry of Education, Culture, Sports, Science and Technology; Japan Society for the Promotion of Science [20244058, 17072005]; CAS; NSFC
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/33978]
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	Li, Z,Ooe, Y,Wang, XC,et al. As-75 NQR and NMR Studies of Superconductivity and Electron Correlations in Iron Arsenide LiFeAs[J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN,2010,79(8).
APA	Li, Z.,Ooe, Y.,Wang, XC.,Liu, QQ.,Jin, CQ.,...&Zheng, GQ.(2010).As-75 NQR and NMR Studies of Superconductivity and Electron Correlations in Iron Arsenide LiFeAs.JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN,79(8).
MLA	Li, Z,et al."As-75 NQR and NMR Studies of Superconductivity and Electron Correlations in Iron Arsenide LiFeAs".JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 79.8(2010).