Atomic chains and lattice vibration characteristics in A2 IIIB3 VI compounds with tetrahedral coordination of atoms

On the basis of the presence of atomic chains in A₂ ^IIIB₃ ^VI compounds having zincblende defect structure, a linear-chain model is used to calculate the lattice vibration frequencies. The agreement of the calculated and experimental frequencies is an indication of the applicability of the model and enables one to determine the motion of various atoms during the corresponding vibrations.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 83–88, April, 1977.