Fig. 2.

The electronic structure of PtTe₂. a, b Band dispersions along the Γ-M (a) and Γ-K (b) direction at photon energy of 22 eV. Red and gray arrow indicate the bulk Dirac cone and the surface state Dirac cone respectively. c, d Calculated band dispersion along the Γ-M (c) and Γ-K (d) directions using Wannier function. e Measured Fermi surface map at photon energy of 21.2 eV. Black dashed line indicates surface Brillouin zone. f Calculated Fermi surface map. g, h Three-dimensional E–k _x–k _y plots of the bulk Dirac cone around the Γ point g and the surface state Dirac cone h