Observation of topological surface states and strong electron/hole imbalance in extreme magnetoresistance compound LaBi

doi:10.1103/PhysRevMaterials.2.024201

	Observation of topological surface states and strong electron/hole imbalance in extreme magnetoresistance compound LaBi
	Jiang, J.1,2,3,4,5 ; Schroter, N. B. M.3; Wu, S. -C.6; Kumar, N.6; Shekhar, C.6; Peng, H.3; Xu, X.7; Chen, C.3; Yang, H. F.8; Hwang, C. -C.5; Mo, S. -K.4; Felser, C.6; Yan, B. H.6; Liu, Z. K.1,2 ; Yang, L. X.7; Chen, Y. L.1,2,3,7
	2018-02-06
发表期刊	PHYSICAL REVIEW MATERIALS
ISSN	2475-9953
卷号	2 期号:2
发表状态	已发表
DOI	10.1103/PhysRevMaterials.2.024201
摘要	The recent discovery of the extreme magnetoresistance (XMR) in the nonmagnetic rare-earth monopnictides LaX (X = P, As, Sb, Bi,), a recently proposed new topological semimetal family, has inspired intensive research effort in the exploration of the correlation between the XMR and their electronic structures. In this work, using angle-resolved photoemission spectroscopy to investigate the three-dimensional band structure of LaBi, we unraveled its topologically nontrivial nature with the observation of multiple topological surface Dirac fermions, as supported by our ab initio calculations. Furthermore, we observed substantial imbalance between the volume of electron and hole pockets, which rules out the electron-hole compensation as the primary cause of the XMR in LaBi.
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	NRF, Korea[2011-0030787] ; NRF, Korea[2017R1A2B2003928]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000424196500002
出版者	AMER PHYSICAL SOC
EI入藏号	20191306694705
EI主题词	Binary alloys ; Calculations ; Electronic structure ; Lanthanum alloys ; Magnetoresistance ; Photoelectron spectroscopy ; Rare earths ; Topology
EI分类号	Rare Earth Metals:547.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Inorganic Compounds:804.2 ; Mathematics:921 ; Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4
WOS关键词	INITIO MOLECULAR-DYNAMICS ; DIRAC SEMIMETAL ; PHASE ; TRANSITION
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/16259
专题	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_柳仲楷组
通讯作者	Chen, Y. L.
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai, Peoples R China 2.Chinese Acad Sci, Shanghai Sci Res Ctr, Shanghai, Peoples R China 3.Univ Oxford, Dept Phys, Oxford OX1 3PU, England 4.Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA 5.POSTECH, Pohang Accelerator Lab, Pohang 790784, South Korea 6.Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany 7.Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China 8.Chinese Acad Sci, State Key Lab Funct Mat Informat, SIMIT, 865 Changning Rd, Shanghai 200050, Peoples R China
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Jiang, J.,Schroter, N. B. M.,Wu, S. -C.,et al. Observation of topological surface states and strong electron/hole imbalance in extreme magnetoresistance compound LaBi[J]. PHYSICAL REVIEW MATERIALS,2018,2(2).
APA	Jiang, J..,Schroter, N. B. M..,Wu, S. -C..,Kumar, N..,Shekhar, C..,...&Chen, Y. L..(2018).Observation of topological surface states and strong electron/hole imbalance in extreme magnetoresistance compound LaBi.PHYSICAL REVIEW MATERIALS,2(2).
MLA	Jiang, J.,et al."Observation of topological surface states and strong electron/hole imbalance in extreme magnetoresistance compound LaBi".PHYSICAL REVIEW MATERIALS 2.2(2018).