TOWARD THE TEMPERATURE DEPENDENCE OF THE YOUNG MODULUS OF MAGNETIC MATERIALS

Using the example of a ferromagnetic dielectric, an algorithm is proposed for calculating the Young modulus of elastically deformable solid bodies on the basis of the Holstein–Primakov transformations and the theory of spin waves. Due to the method of averaging over the ground state of a magnetic, a general expression is obtained for the temperature dependence of the Young modulus in a wide temperature range.
   
Author:  S. O. Gladkov ,  É. M. Kartashov
Keywords:  Young modulus, compressibility factor, temperature, shear modulus magnons, equilibrium distribution function, exchange interaction
Page:  1051