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  Hidden type-II Weyl points in the Weyl semimetal NbP

Wu, S.-C., Sun, Y., Felser, C., & Yan, B. (2017). Hidden type-II Weyl points in the Weyl semimetal NbP. Physical Review B, 96(16): 165113, pp. 1-5. doi:10.1103/PhysRevB.96.165113.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-1242-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-1914-E
Genre: Journal Article

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 Creators:
Wu, Shu-Chun1, Author              
Sun, Yan1, Author              
Felser, Claudia2, Author              
Yan, Binghai3, Author
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
3External Organizations, ou_persistent22              

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 Abstract: A Weyl semimetal discovered recently, NbP, exhibits two groups of Weyl points with one group lying inside the k(z) = 0 plane and the other group staying away from this plane. All Weyl points have been assumed to be type I, in which the Fermi surface (Fs) shrinks into a point as the Fermi energy crosses the Weyl point. In this paper, we have revealed that the second group of Weyl points are actually type II, which are found to be touching points between the electron and hole pockets in the FS. Corresponding Weyl cones are strongly tilted along a line approximately 17 degrees off the k(z) axis in the k(x) - k(z) (or k(y) - k(z)) plane, violating the Lorentz symmetry but still giving rise to Fermi arcs on the surface. Therefore, NbP exhibits both type-I (k(z) = 0 plane) and type-II (k(z) not equal 0 plane) Weyl points.

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Language(s): eng - English
 Dates: 2017-10-092017-10-09
 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: 96 (16) Sequence Number: 165113 Start / End Page: 1 - 5 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008