By combining electronic theory with the cluster variation method of statistical mechanics, five types of III·III-V and seven types of III-V·V pseudobinary phase diagrams are calculated. All the phase diagrams demonstrate phase separation and it is revealed that the phase separation is driven by elastic energy contribution. The asymmetry of the phase boundary can be systematically explained in terms of lattice constants of the constituent binary ordered compounds.
ASJC Scopus subject areas
- Physics and Astronomy(all)