Interatomic force constants of semiconductors

Interatomic force constants of A(II)B(VI) and A(III)B(V) semiconductors have been calculated using plasma oscillations theory of solids. Two simple equations relating the bond-stretching force constant (alpha) and plasmon energy have been proposed. The calculated values of alpha have been used in calculating the values of bond-bending force constant (beta). Our calculated values of alpha and beta are in excellent agreement with the values reported by different workers. (C) 1999 Elsevier Science Ltd. All rights reserved.