High Pressure Structural Properties of Rare-earth Antimonide

Abstract

In the present paper, we have investigated the high-pressure structural phase transition of  rare-earth antimonide. We studied theoretically the structural properties of this compound (DySb) by using the three-body potential model with the effect of electronic polarizability (TBIPE_P). These compounds exhibits first order crystallographic phase transition from NaCl (B₁) to CsCl (B₂) phase at 22.6 GPa respectively. The phase transition pressures and associated volume collapse obtained from present potential model(TBIPE_P) show a good agreement with available experimental data.

Keywords: High Pressure, Crystal Structure, Volume Collapse