Role of the electronic subsystem in formation of the composition of binary compounds

We consider theoretically the composition of A₂B₆ compounds in the case of evaporation into a vacuum with the participation of the free electrons taken into account. A system of kinetic equations is derived for defect atoms and vacancies on the surface of the crystal and inside the volume. It is shown that the steady-state values of these components are controlled by the electronic subsystem and by the rate of evaporation (sublimation) of the crystal.Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 26, No. 1, pp. 78–81, January–February, 1990.