Anharmonic correction to the magnetization in a ferromagnet with two sublattices

Abstract

The Jerromagnet with two sublattices and different spins in each of them was analyzed both at low temperatures and in the high temperature range. At low temperatures the first anharmonic correction to the magnetization was Jound to be of the order T 'L. In the high temperature range the implicit expression for the magnetization was obtained, which can be solved only numerically.