アモルファスリボンにおける応力磁化ヒステリシス特性

抄録

Magnetization of amorphous ribbon changes due to application of tensile stress under magnetic field, and it also shows hysteresis due to tension. The change of magnetization due to tension is composed of two effects: one a reversible magnetization change and the other an irreversible magnetization change. We discuss, in this paper, characteristics of these two effects at various points on B-H curves of amorphous ribbons. The reversible magnetization change shows peak value due to applied field and it shows different values for both sides of B-H curve at the same field. This can be explained by the deformation of 90° domains. The irreversible magnetization change for lower side of B-H curve shows maximum value and this corresponds to the characteristics of differential permeability of B-H curve. The irreversible change for upper side of B-H curve changes its value from negative to positive value. This can be explained by the displacement of 180° domain wall.