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Title: 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 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.
Authors:
 [1] ;  [2] ;  [1] ;  [2] ;  [2] ;  [1] ;  [2] ;  [2] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [1]
  1. National Univ. of Singapore (Singapore). Centre for Advanced 2D Materials and Graphene Research Centre; National Univ. of Singapore (Singapore). Dept. of Physics
  2. Princeton Univ., NJ (United States). Lab. for Topological Quantum Matter and Spectroscopy, Dept. of Physics
  3. Princeton Univ., NJ (United States). Lab. for Topological Quantum Matter and Spectroscopy, Dept. of Physics; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. National Univ. of Singapore (Singapore). Centre for Advanced 2D Materials and Graphene Research Centre; National Univ. of Singapore (Singapore). Dept. of Physics; Northeastern Univ., Boston, MA (United States). Dept. of Physics
  5. Northeastern Univ., Boston, MA (United States). Dept. of Physics
  6. Princeton Univ., NJ (United States). Lab. for Topological Quantum Matter and Spectroscopy, Dept. of Physics; Princeton Univ., NJ (United States). Princeton Center for Complex Materials, Princeton Inst. for the Science and Technology of Materials
Publication Date:
Report Number(s):
LA-UR-17-22207
Journal ID: ISSN 1098-0121; PRBMDO; TRN: US1800775
Grant/Contract Number:
AC52-06NA25396; FG02-05ER46200; FG02-07ER46352; AC02-05CH11231; GBMF4547; NRFNRFF2013-03
Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 23; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Material Science
OSTI Identifier:
1415373
Alternate Identifier(s):
OSTI ID: 1227333