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  TaIrTe4: A ternary type-II Weyl semimetal

Koepernik, K., Kasinathan, D., Efremov, D. V., Khim, S., Borisenko, S., Büchner, B., et al. (2016). TaIrTe4: A ternary type-II Weyl semimetal. Physical Review B, 93(20): 201101, pp. 1-5. doi:10.1103/PhysRevB.93.201101.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-C520-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-B655-3
Genre: Journal Article

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 Creators:
Koepernik, K.1, Author
Kasinathan, D.2, Author              
Efremov, D. V.1, Author
Khim, Seunghyun1, Author
Borisenko, Sergey1, Author
Büchner, Bernd1, Author
van den Brink, Jeroen1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              

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 Abstract: In metallic condensed matter systems two different types of Weyl fermions can in principle emerge, with either a vanishing (type-I) or with a finite (type-II) density of states at the Weyl node energy. So far only WTe2 and MoTe2 were predicted to be type-II Weyl semimetals. Here we identify TaIrTe4 as a third member of this family of topological semimetals. TaIrTe4 has the attractive feature that it hosts only four well-separated Weyl points, the minimum imposed by symmetry. Moreover, the resulting topological surface states-Fermi arcs connecting Weyl nodes of opposite chirality-extend to about 1/3 of the surface Brillouin zone. This large momentum-space separation is very favorable for detecting the Fermi arcs spectroscopically and in transport experiments.

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Language(s): eng - English
 Dates: 2016-05-052016-05-05
 Publication Status: Published in print
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 93 (20) Sequence Number: 201101 Start / End Page: 1 - 5 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008