Disorder-induced electronic nematicity

doi:10.1103/PhysRevB.100.064521

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	Disorder-induced electronic nematicity
	Steffensen, Daniel ; Kotetes, Panagiotis 3; Paul, Indranil 2; Andersen, Brian
刊名	PHYSICAL REVIEW B
	2019
卷号	100 期号:6 页码:64521
关键词	STATE SCATTERING ANISOTROPY TRANSPORT SYMMETRY
ISSN号	2469-9950
DOI	10.1103/PhysRevB.100.064521
英文摘要	We expose the theoretical mechanisms underlying disorder-induced nematicity in systems exhibiting strong fluctuations or ordering in the nematic channel. Our analysis consists of a symmetry-based Ginzburg-Landau approach and associated microscopic calculations. We show that a single featureless pointlike impurity induces nematicity locally, already above the critical nematic transition temperature. The persistence of fourfold rotational symmetry constrains the resulting disorder-induced nematicity to be inhomogeneous and spatially average to zero. Going beyond the single impurity case, we discuss the effects of finite disorder concentrations on the appearance of nematicity. We identify the conditions that allow disorder to enhance the nematic transition temperature, and we provide a concrete example. The presented theoretical results can explain a large series of recent experimental discoveries of disorder-induced nematic order in iron-based superconductors.
学科主题	Materials Science ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/26956]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Univ Paris, Lab Mat & Phenomenes Quant, CNRS, F-75013 Paris, France 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Univ Copenhagen, Niels Bohr Inst, Lyngbyvej 2, DK-2100 Copenhagen, Denmark
推荐引用方式 GB/T 7714	Steffensen, Daniel,Kotetes, Panagiotis,Paul, Indranil,et al. Disorder-induced electronic nematicity[J]. PHYSICAL REVIEW B,2019,100(6):64521.
APA	Steffensen, Daniel,Kotetes, Panagiotis,Paul, Indranil,&Andersen, Brian.(2019).Disorder-induced electronic nematicity.PHYSICAL REVIEW B,100(6),64521.
MLA	Steffensen, Daniel,et al."Disorder-induced electronic nematicity".PHYSICAL REVIEW B 100.6(2019):64521.