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

Jiang, J., Schröter, N. B. M., Wu, S.-C., Kumar, N., Shekhar, C., Peng, H., et al. (2018). Observation of topological surface states and strong electron/hole imbalance in extreme magnetoresistance compound LaBi. Physical Review Materials, 2(2): 024201, pp. 1-5. doi:10.1103/PhysRevMaterials.2.024201.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-8742-D Version Permalink: http://hdl.handle.net/21.11116/0000-0000-875B-2
Genre: Journal Article

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 Creators:
Jiang, J.1, Author
Schröter, N. B. M.1, Author
Wu, S.-C.2, Author              
Kumar, N.2, Author              
Shekhar, C.3, Author              
Peng, H.1, Author
Xu, X.1, Author
Chen, C.1, Author
Yang, H. F.1, Author
Hwang, C.-C.1, Author
Mo, S.-K.1, Author
Felser, C.4, Author              
Yan, B. H.5, Author              
Liu, Z. K.1, Author
Yang, L. X.1, Author
Chen, Y. L.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
5Binghai Yan, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863427              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2018-02-062018-02-06
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1103/PhysRevMaterials.2.024201
 Degree: -

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Title: Physical Review Materials
  Abbreviation : Phys. Rev. Mat.
Source Genre: Journal
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Publ. Info: College Park, MD : American Physical Society
Pages: - Volume / Issue: 2 (2) Sequence Number: 024201 Start / End Page: 1 - 5 Identifier: ISSN: 2475-9953
CoNE: /journals/resource/2475-9953