The intrinsic stacking-fault energies of beryllium, cadmium and magnesium were calculated to be 225.1, 12.0 and 8.7mJ/m2, respectively.
Application of Optimized Model Potential Theory to Stacking-Faults in HCP Metals. A.R.Ducharme: Physics Letters A, 1970, 31[1], 41-2