Elastic and Structural Properties of Plutonium Pnictides

Abstract

The structural phase transitions of plutonium pnictides (PuAs and PuSb) have been investigated. The Extented Interaction Potential (EIP) model has been developed (including the zero point energy effect in three body interaction potential model). The phase transition pressures and associated volume collapses obtained from present model show in general in good agreement with available experimental data than others. The elastic constants and modulus of elasticity are also reported.

Keywords: High pressure, Crystal structure, Elastic properties, Phase transition.