Theoretical explanation of the Er C33-versus-temperature curve in the ordered phase near TN

Abstract

We have developed a general algorithm in order to study many static and dynamic magnetoelastic properties of a rare-earth metal, with the use of a general Hamiltonian already known in literature. As a specific application of our method we calculate the magnetic contribution to the Er C33 elastic constant in the region of ordered phase near Tz. In order to study the magnetic ordered phase we have adapted a method developed by Nagamiya.