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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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Liu, Z. K.1, Autor
Yang, L. X.1, Autor
Wu, S.-C.2, Autor           
Shekhar, C.3, Autor           
Jiang, J.1, Autor
Yang, H. F.1, Autor
Zhang, Y.1, Autor
Mo, S.-K.1, Autor
Hussain, Z.1, Autor
Yan, B.4, Autor           
Felser, C.5, Autor           
Chen, Y. L.1, Autor
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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 Zusammenfassung: 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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Sprache(n): eng - English
 Datum: 2016-09-272016-09-27
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: -
 Identifikatoren: ISI: 000385441700001
DOI: 10.1038/ncomms12924
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Titel: Nature Communications
  Kurztitel : Nat. Commun.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: London : Nature Publishing Group
Seiten: - Band / Heft: 7 Artikelnummer: 12924 Start- / Endseite: 1 - 7 Identifikator: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723