NMR evidence of strongly correlated superconductivity in LiFeAs: Tuning toward a spin-density-wave ordering

	NMR evidence of strongly correlated superconductivity in LiFeAs: Tuning toward a spin-density-wave ordering
	Ma, L ; Zhang, J ; Chen, GF ; Yu, WQ
刊名	PHYSICAL REVIEW B
	2010
卷号	82 期号:18
关键词	SYSTEM
ISSN号	1098-0121
通讯作者	Ma, L (reprint author), Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China.
中文摘要	In this Rapid Communication, we reported the results of NMR study on LiFeAs single crystals. We find a strong evidence of the low-temperature spin fluctuations; by changing sample preparation conditions, the system can be tuned toward a spin-density-wave (SDW) quantum-critical point. The detection of an interstitial Li(2) ion, possibly locating in the tetrahedral hole, suggests that the off-stoichiometry and/or lattice defect can probably account for the absence of the SDW ordering in LiFeAs. These facts show that LiFeAs is a strongly correlated system and the superconductivity is likely originated from the SDW fluctuations.
收录类别	SCI
资助信息	National Basic Research Program of China [2010CB923000, 2011CB605900]; National Natural Science Foundation of China [11074304, 10974254]; Program for New Century Excellent Talents in University
语种	英语
公开日期	2014-02-20
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57814]
专题	物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文
推荐引用方式 GB/T 7714	Ma, L,Zhang, J,Chen, GF,et al. NMR evidence of strongly correlated superconductivity in LiFeAs: Tuning toward a spin-density-wave ordering[J]. PHYSICAL REVIEW B,2010,82(18).
APA	Ma, L,Zhang, J,Chen, GF,&Yu, WQ.(2010).NMR evidence of strongly correlated superconductivity in LiFeAs: Tuning toward a spin-density-wave ordering.PHYSICAL REVIEW B,82(18).
MLA	Ma, L,et al."NMR evidence of strongly correlated superconductivity in LiFeAs: Tuning toward a spin-density-wave ordering".PHYSICAL REVIEW B 82.18(2010).