Electronic polarizability of compound semiconductors

Abstract

In this paper we present a new expression relating the electronic polarizability (α_e) in terms of ionic charge (Z), melting temperature (T_m) and mean atomic volume (Ω) for zinc blende (A^IIB^VI and A^IIIB^V) structured solids. The electronic polarizability of these solids exhibit a linear relationship when plotted against the k_BT_m/Ω (k_B= Boltzmann's constant), but fall on different straight lines according to the product of the ionic charge of the compounds. We have applied the proposed relation on these solids and found a better agreement with the experimental data as compared to the values evaluated by earlier researchers.