A charge-density-wave topological semimetal

doi:10.1038/s41567-020-01104-z

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	A charge-density-wave topological semimetal
	Shi, Wujun1,2 ; Wieder, Benjamin J.3; Meyerheim, Holger L.4; Sun, Yan 1; Zhang, Yang 1,5; Li, Yiwei 6; Shen, Lei 7,8; Qi, Yanpeng2 ; Yang, Lexian 7,8; Jena, Jagannath 4; Werner, Peter 4; Koepernik, Klaus 5; Parkin, Stuart 4; Chen, Yulin2,6,7,8 ; Felser, Claudia 1; Bernevig, B. Andrei 3; Wang, Zhijun 9,10,11
	2021-01-04
发表期刊	NATURE PHYSICS (IF:17.6[JCR-2023],19.3[5-Year])
ISSN	1745-2473
发表状态	已发表
DOI	10.1038/s41567-020-01104-z
摘要	Topological physics and strong electron-electron correlations in quantum materials are typically studied independently. However, there have been rapid recent developments in quantum materials in which topological phase transitions emerge when the single-particle band structure is modified by strong interactions. Here we demonstrate that the room-temperature phase of (TaSe4)(2)I is a Weyl semimetal with 24 pairs of Weyl nodes. Owing to its quasi-one-dimensional structure, (TaSe4)(2)I also hosts an established charge-density wave instability just below room temperature. We show that the charge-density wave in (TaSe4)(2)I couples the bulk Weyl points and opens a bandgap. The correlation-driven topological phase transition in (TaSe4)(2)I provides a route towards observing condensed-matter realizations of axion electrodynamics in the gapped regime, topological chiral response effects in the semimetallic phase, and represents an avenue for exploring the interplay of correlations and topology in a solid-state material.
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收录类别	SCI ; EI ; SCIE
语种	英语
资助项目	DOE[DE-SC0016239] ; NSF EAGER grant[DMR 1643312] ; NSF-MRSEC[DMR-2011750][DMR-142051] ; Simons Investigator grant[404513] ; ONR[N00014-14-1-0330][N00014-20-1-2303] ; BSF Israel US Foundation[2018226] ; National Natural Science Foundation of China[11974395][U1932217][11974246] ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDB33000000] ; DFG[SPP1666] ; ERC[291472][742068] ; Deutsche Forschungsgemeinschaft DFG[SFB 1143]
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000604865700001
出版者	NATURE RESEARCH
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/125043
专题	大科学中心物质科学与技术学院_特聘教授组_陈宇林物质科学与技术学院_PI研究组_齐彦鹏组
通讯作者	Bernevig, B. Andrei; Wang, Zhijun
作者单位	1.Max Planck Inst Chem Phys Solids, Dresden, Germany 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai, Peoples R China 3.Princeton Univ, Dept Phys, Princeton, NJ 08544 USA 4.Max Planck Inst Microstruct Phys, Halle, Saale, Germany 5.Leibniz Inst Solid State & Mat Res, Dresden, Germany 6.Univ Oxford, Dept Phys, Oxford, England 7.Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing, Peoples R China 8.Tsinghua Univ, Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China 9.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing, Peoples R China 10.Chinese Acad Sci, Inst Phys, Beijing, Peoples R China 11.Univ Chinese Acad Sci, Beijing, Peoples R China
第一作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Shi, Wujun,Wieder, Benjamin J.,Meyerheim, Holger L.,et al. A charge-density-wave topological semimetal[J]. NATURE PHYSICS,2021.
APA	Shi, Wujun.,Wieder, Benjamin J..,Meyerheim, Holger L..,Sun, Yan.,Zhang, Yang.,...&Wang, Zhijun.(2021).A charge-density-wave topological semimetal.NATURE PHYSICS.
MLA	Shi, Wujun,et al."A charge-density-wave topological semimetal".NATURE PHYSICS (2021).