中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Visualization of electron nematicity and unidirectional antiferroic fluctuations at high temperatures in NaFeAs

文献类型:期刊论文

作者Rosenthal, EP ; Andrade, EF ; Arguello, CJ ; Fernandes, RM ; Xing, LY ; Wang, XC ; Jin, CQ ; Millis, AJ ; Pasupathy, AN
刊名NATURE PHYSICS
出版日期2014
卷号10期号:3页码:225
ISSN号1745-2473
通讯作者Pasupathy, AN (reprint author), Columbia Univ, Dept Phys, New York, NY 10027 USA.
中文摘要Superconductivity in the iron pnictides is often closely connected to a nematic state in which the tetragonal symmetry of the crystal is spontaneously broken. Determining the dominant interactions responsible for this symmetry breaking is essential to understanding the superconducting state. Here, we use atomic-resolution variable-temperature scanning tunnelling spectroscopy to probe the nanoscale electronic structure of the nematically ordered, parent pnictide NaFeAs and compare it with non-nematic LiFeAs. Local electronic nematicity is only manifest in NaFeAs and is found to persist to high temperatures in the nominally tetragonal phase of the crystal. The spatial distribution and energy dependence of the electronic anisotropy at high temperatures is explained by the persistence of large-amplitude, short-range, unidirectional, antiferroic fluctuations, indicating that strong density-wave fluctuations exist and couple to near-Fermi surface electrons even far from the structural and density-wave phase boundaries.
资助信息National Science Foundation through the Partnerships for International Research and Education grant [OISE-0968226]; Defense Advanced Research Projects Agency [N66001-12-1-4216]; Air Force Office for Scientific Research [FA9550-11-1-0010]; National Science Foundation [NSF-DMR 1006282]; National Science Foundation of China; Ministry of Science and Technology of China
语种英语
公开日期2015-04-14
源URL[http://ir.iphy.ac.cn/handle/311004/59396]  
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
Rosenthal, EP,Andrade, EF,Arguello, CJ,et al. Visualization of electron nematicity and unidirectional antiferroic fluctuations at high temperatures in NaFeAs[J]. NATURE PHYSICS,2014,10(3):225.
APA Rosenthal, EP.,Andrade, EF.,Arguello, CJ.,Fernandes, RM.,Xing, LY.,...&Pasupathy, AN.(2014).Visualization of electron nematicity and unidirectional antiferroic fluctuations at high temperatures in NaFeAs.NATURE PHYSICS,10(3),225.
MLA Rosenthal, EP,et al."Visualization of electron nematicity and unidirectional antiferroic fluctuations at high temperatures in NaFeAs".NATURE PHYSICS 10.3(2014):225.

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来源:物理研究所

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