Topological semimetals such as Weyl or Dirac semimetal with superconductivity
have emerged as a new class of topological materials to realize and study
Majorana Fermion in its intrinsic form. This article reports the Density
Functional Theory (DFT) calculated bulk electronic band structure of recently
discovered topological superconductor candidate Sn4Au. This study is further
extended to the calculation of Z2 invariants. The Fermi surfaces corresponding
to the bands which are responsible for non-trivial band topology along with the
surface states are also mapped. The complete study suggests that Sn4Au is a
topological semimetal. On Sn4Au, it is the first report in the literature
showing the non-trivial band topology based on first-principle calculations.Comment: 19 Pages Text + Figs: SUST - Special issue: Superconductivity
Research in Indi