Figure 2
The evolution with hydrostatic pressure of the (a) a, (b) b and (c) c axis lengths and (d) the unit-cell volume of realgar, as obtained from the present DFT/PBEh-3c simulations (black symbols and lines), compared with previous experimental results by Hejny et al. (2012) (red circles) and the theoretical study of Caratelli et al. (2017) at the PBE-D2 level of theory (blue triangles). |