Figure 2

(a) Total density of states for two different exchange-correlation functionals: GGA-PBE and HSE06 at 50 GPa and (b) harmonic (T = 0 K) phonon band structures of tetragonal XeC2 structure at 50 and 100 GPa.

(a) Total density of states for two different exchange-correlation functionals: GGA-PBE and HSE06 at 50 GPa and (b) harmonic (T = 0 K) phonon band structures of tetragonal XeC2 structure at 50 and 100 GPa.