Research Article

Elastic Properties and the Band Gap of Semiconductor Alloy: A Comparative Study of Various Ab Initio Approaches

Figure 3

Composition dependence of the elastic constants in the wurtzite (WZ) structure. Each graph presents one constant calculated using all the methods. Filled points represent the supercell (SC) alloy simulation while empty points represent the alchemical mixing (AM). Squares: finite difference method, circles: clamped case of DFPT, and triangles: relaxed case of DFPT.