Topological Weyl semimetals in Bi1-xSbx alloys

Su YH, Shi W, Felser C, Sun Y (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Physical Review B American Physical Society

Book Volume: 97

Article Number: 155431

Journal Issue: 15

DOI: 10.1103/PhysRevB.97.155431

Abstract

We investigated Weyl semimetal (WSM) phases in bismuth antimony (Bi1-xSbx) alloys by combination of atomic composition and arrangement. Via first-principles calculations, we found two WSM states with Sb concentrations of x=0.5 and 0.83 with specific inversion-symmetry-broken elemental arrangement. The Weyl points are close to the Fermi level in both of these two WSM states. Therefore, it is likely to obtain Weyl points in Bi-Sb alloy. The WSM phase provides a reasonable explanation for the current transport study of Bi-Sb alloy with the violation of Ohm's law [D. Shin, Y. Lee, M. Sasaki, Y. H. Jeong, F. Weickert, J. B. Betts, H.-J. Kim, K.-S. Kim, and J. Kim, Nat. Mater. 16, 1096 (2017)1476-112210.1038/nmat4965]. This paper shows that the topological phases in Bi-Sb alloys depend on both elemental composition and their specific arrangement.

Involved external institutions

Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE)

How to cite

APA:

Su, Y.-H., Shi, W., Felser, C., & Sun, Y. (2018). Topological Weyl semimetals in Bi1-xSbx alloys. Physical Review B, 97(15). https://doi.org/10.1103/PhysRevB.97.155431

MLA:

Su, Yu-Hsin, et al. "Topological Weyl semimetals in Bi1-xSbx alloys." Physical Review B 97.15 (2018).

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