Magnetization processes in amorphous alloys based on 4f-3d intermetallic compounds

Structure of domain boundaries is calculated and processes of their displacement in amorphous and amorphous-crystal alloys with account of energy fluctuation of magnetic anisotropy are investigated. Evaluations for coercive force of domain boundary displacement in amorphous and amorphous-crystal alloys are obtained. Noted is a possibility of asymmetry of hysteresis loop in amorphous-crystal alloys on the base of 4f-3d metal compounds in which relative value of 4f-3d ion momenta changes during transition into the amorphous state. The results obtained are compared with the experimental data on Gd2Co7, TbFe2 alloys