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  Extremely high magnetoresistance and conductivity in the type-II Weyl semimetals WP2 and MoP2

Kumar, N., Sun, Y., Xu, N., Manna, K., Yao, M., Süss, V., et al. (2017). Extremely high magnetoresistance and conductivity in the type-II Weyl semimetals WP2 and MoP2. Nature Communications, 8(1): 1642, pp. 1-8. doi:10.1038/s41467-017-01758-z.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-560A-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-56E3-5
Genre: Journal Article

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 Creators:
Kumar, Nitesh1, Author              
Sun, Yan1, Author              
Xu, Nan2, Author
Manna, Kaustuv1, Author              
Yao, Mengyu2, Author
Süss, Vicky1, Author              
Leermakers, Inge2, Author
Young, Olga2, Author
Förster, Tobias2, Author
Schmidt, Marcus3, Author              
Borrmann, Horst4, Author              
Yan, Binghai2, Author
Zeitler, Uli2, Author
Shi, Ming2, Author
Felser, Claudia5, Author              
Shekhar, Chandra6, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2External Organizations, ou_persistent22              
3Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863415              
4Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863410              
5Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
6Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428              

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 Abstract: The peculiar band structure of semimetals exhibiting Dirac and Weyl crossings can lead to spectacular electronic properties such as large mobilities accompanied by extremely high magnetoresistance. In particular, two closely neighboring Weyl points of the same chirality are protected from annihilation by structural distortions or defects, thereby significantly reducing the scattering probability between them. Here we present the electronic properties of the transition metal diphosphides, WP2 and MoP2, which are type-II Weyl semimetals with robust Weyl points by transport, angle resolved photoemission spectroscopy and first principles calculations. Our single crystals of WP2 display an extremely low residual low-temperature resistivity of 3 nΩ cm accompanied by an enormous and highly anisotropic magnetoresistance above 200 million % at 63 T and 2.5 K. We observe a large suppression of charge carrier backscattering in WP2 from transport measurements. These properties are likely a consequence of the novel Weyl fermions expressed in this compound.

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Language(s): eng - English
 Dates: 2017-11-212017-11-21
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1038/s41467-017-01758-z
 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: 8 (1) Sequence Number: 1642 Start / End Page: 1 - 8 Identifier: ISSN: 2041-1723
CoNE: /journals/resource/2041-1723