Magnetoelastic influence on structural phase transitions in cubic ferromagnets

Influence of the magnetoelastic interaction on the structural phase transitions in cubic ferromagnets is investigated. For the case of a first positive magnetic anisotropy constant, these transitions are not accompanied by a spin-reorientation. In the magnetic state, the cubic phase has small magnetoelastic deformations. These deformations can lead to vanishing of the first-order structural transitions. Due to the magnetoelastic interaction, a first-order magnetic phase transition can occur simultaneously with a structural first-order transformation.