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
Source PublicationPHYSICAL REVIEW MATERIALS
ISSN2475-9953
Volume2Issue:2
Status已发表
DOI10.1103/PhysRevMaterials.2.024201
AbstractThe 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.
Indexed BySCI ; EI
Language英语
Funding ProjectNRF, Korea[2011-0030787] ; NRF, Korea[2017R1A2B2003928]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000424196500002
PublisherAMER PHYSICAL SOC
EI Accession Number20191306694705
EI KeywordsBinary alloys ; Calculations ; Electronic structure ; Lanthanum alloys ; Magnetoresistance ; Photoelectron spectroscopy ; Rare earths ; Topology
EI Classification NumberRare 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 KeywordINITIO MOLECULAR-DYNAMICS ; DIRAC SEMIMETAL ; PHASE ; TRANSITION
Original Document TypeArticle
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://kms.shanghaitech.edu.cn/handle/2MSLDSTB/16259
Collection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
Corresponding AuthorChen, Y. L.
Affiliation1.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
First Author AffilicationSchool of Physical Science and Technology
Corresponding Author AffilicationSchool of Physical Science and Technology
First Signature AffilicationSchool of Physical Science and Technology
Recommended Citation
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).
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