A crystallochemical model was proposed for the vapour-phase epitaxy of films. It was based upon the simultaneous formation of singly- and doubly-charged Frenkel defects in the cationic sub-lattice. The results of numerical calculations which were based upon this model were in good agreement with experimental data.

Mechanisms of Formation and Charge States of Intrinsic Defects in Lead Telluride Films. M.A.Ruvinskii, D.M.Freik, B.M.Ruvinskii, V.V.Prokopiv: Technical Physics Letters, 2000, 26[8], 647-9