Energy approach to the description of magnetoelastic damping in ferromagnets

Using the Green's function method for a system of 90° domain walls (DW) for the equilibrium and Poisson equations in which the surface density of the magnetic pole energy is accounted for, we have found an expression for the displacement of a DW in the quasistatic approximation and its flexure which is represented in the form of three terms, and also its interaction force with point and linear defects. Thus we have used the equations which describe the condition for dislodgement of the DW from defects to find relations which describe the number of irreversible jumps of the wall, the energy dissipated per jump, and the magnetoelastic loss with a uniform distribution of defects over the DW.