ANHARMONIC PROPERTIES OF CADMIUM TELLURIDE (CdTe)

Abstract

In the present paper, we have investigated the phase transition and elastic properties of CdTe (Cadmium telluride) at high pressure using Three body potential model (TBPM) which include three body interaction (TBI).We predict the B3-B1 phase transition for CdTe .The phase transition pressure (Pt) and associated volume collapse obtained from this approach show a respectably good agreement with experimental and other theoretical (ab-initio method) data. Three body potential model has also been used to derive the correct expressions for third order elastic constants and pressure derivatives of second order elastic constants for CdTe.