Fermi surface interconnectivity and topology in Weyl fermion semimetals TaAs, TaP, NbAs, and NbP

The family of binary compounds including TaAs, TaP, NbAs, and NbP was recently discovered as the first realization of Weyl semimetals. In order to develop a comprehensive description of the charge carriers in these Weyl semimetals, we performed detailed and systematic electronic band structure calcu...

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Bibliographic Details
Published in:Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2015-12, Vol.92 (23), Article 235104
Main Authors: Lee, Chi-Cheng, Xu, Su-Yang, Huang, Shin-Ming, Sanchez, Daniel S., Belopolski, Ilya, Chang, Guoqing, Bian, Guang, Alidoust, Nasser, Zheng, Hao, Neupane, Madhab, Wang, Baokai, Bansil, Arun, Hasan, M. Zahid, Lin, Hsin
Format: Article
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Material Science
MATERIALS SCIENCE
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Summary:The family of binary compounds including TaAs, TaP, NbAs, and NbP was recently discovered as the first realization of Weyl semimetals. In order to develop a comprehensive description of the charge carriers in these Weyl semimetals, we performed detailed and systematic electronic band structure calculations which reveal the nature of Fermi surfaces and their complex interconnectivity in TaAs, TaP, NbAs, and NbP. In conclusion, our work reports a comparative and comprehensive study of Fermi surface topology and band structure details of all known members of the Weyl semimetal family and hence provides the fundamental knowledge for realizing the many predicted exotic topological quantum physics of Weyl semimetals based on the TaAs class of materials.
ISSN:1098-0121
1550-235X
DOI:10.1103/PhysRevB.92.235104