ملخص: We present an analysis of the ionicity factor as a function of hydrostatic pressure for GaP, GaAs, InP and InAs. This factor has been calculated by means of our recent model. We show that the structural phase transition, habitually predicted by a classical calculation of the total energy, can be easily seen from the behaviour of the bonding character. The results are compared with the experimental data with reasonable agreement.

لغة: إنجليزية