Figure 4.
(a,b) Electronic band structures of the antimonene under the tensile strain of 18% obtained from (a) DFT calculations within HSE functional and (b) tight-binding model with (blue lines) and without (red lines) spin-orbit coupling (SOC). (c) Evolution of band gaps opened due to SOC in response to tensile strain. (d) The parities of the occupied bands at the time-reversal invariant momentum.