A. Zaoui et al., CORRELATION BETWEEN THE IONICITY CHARACTER AND THE CHARGE-DENSITY IN SEMICONDUCTORS, Physica status solidi. b, Basic research, 185(1), 1994, pp. 163-169
Using the electronic charge densities obtained by the empirical pseudo
potential method for tetrahedrally bonded semiconductors, an ionicity
scale is established that is in good agreement with the Phillips ionic
ity scale.