Temperature and Pressure Derivatives of Higher Order Elastic Constants of RBI

Abstract

In the present work a theory has been developed for quantifying the second order elastic constants, third order elastic constants and fourth order elastic constants, first order pressure derivatives of second and third order elastic constants, second order pressure derivatives of second order elastic constants and partial contractions for Rubidium Iodide crystal( from 50K up to 650K, near melting point of RbI) also. The results are discussed and compared with both experimental and theoretical data available in literature. The systematic analysis of data of Rubidium Iodide Crystals obtained through different techniques gives important and valuable information about its internal structure, anharmonic and inherent properties.