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  Observation of unusual topological surface states in half-Heusler compounds LnPtBi (Ln = Lu, Y)

Liu, Z. K., Yang, L. X., Wu, S.-C., Shekhar, C., Jiang, J., Yang, H. F., et al. (2016). Observation of unusual topological surface states in half-Heusler compounds LnPtBi (Ln = Lu, Y). Nature Communications, 7: 12924, pp. 1-7. doi:10.1038/ncomms12924.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-BC77-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-9CB7-1
Genre: Journal Article

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 Creators:
Liu, Z. K.1, Author
Yang, L. X.1, Author
Wu, S.-C.2, Author              
Shekhar, C.3, Author              
Jiang, J.1, Author
Yang, H. F.1, Author
Zhang, Y.1, Author
Mo, S.-K.1, Author
Hussain, Z.1, Author
Yan, B.4, Author              
Felser, C.5, 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              
4Binghai Yan, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863427              
5Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: Topological quantum materials represent a new class of matter with both exotic physical phenomena and novel application potentials. Many Heusler compounds, which exhibit rich emergent properties such as unusual magnetism, superconductivity and heavy fermion behaviour, have been predicted to host non-trivial topological electronic structures. The coexistence of topological order and other unusual properties makes Heusler materials ideal platform to search for new topological quantum phases (such as quantum anomalous Hall insulator and topological superconductor). By carrying out angle-resolved photoemission spectroscopy and ab initio calculations on rare-earth half-Heusler compounds LnPtBi (Ln = Lu, Y), we directly observe the unusual topological surface states on these materials, establishing them as first members with non-trivial topological electronic structure in this class of materials. Moreover, as LnPtBi compounds are non-centrosymmetric superconductors, our discovery further highlights them as promising candidates of topological superconductors.

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Language(s): eng - English
 Dates: 2016-09-272016-09-27
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000385441700001
DOI: 10.1038/ncomms12924
 Degree: -

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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 7 Sequence Number: 12924 Start / End Page: 1 - 7 Identifier: ISSN: 2041-1723
CoNE: /journals/resource/2041-1723