Surface Fermi arcs in Z2 Weyl semimetals A3Bi (A= Na, K, Rb)

E. V. Gorbar, V. A. Miransky, Igor Shovkovy, P. O. Sukhachov

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

The surface Fermi arc states in Z2 Weyl semimetals A3Bi (A=Na,K,Rb) are studied by employing a continuum low-energy effective model. It is shown that the surface Fermi arc states can be classified with respect to the ud-parity symmetry. Because of the symmetry, the arcs come in mirror symmetric pairs. The effects of symmetry breaking terms on the structure of the Fermi arcs are also studied. Among other results, we find at least two qualitatively different types of the surface Fermi arcs. The arcs of the first type link disconnected sheets of the bulk Fermi surface, while arcs of the second type link different points of the same bulk Fermi surface sheet.

Original languageEnglish (US)
Article number235138
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume91
Issue number23
DOIs
StatePublished - Jun 22 2015

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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