The present work deals with DW dynamics in amorphous films with perpendicular Tbx(Fea5c0i5) Loo-x magnetic anisotropy. The Tb content of the films varied from 18 to 28 at.% . The character of DW motion was observed to depend significantly on the resultant film magnetization, amplitude of pulse magnetic field and on Tb content. The DW mobility was shown to be an asymmetric function with respect to the compensation composition. Critical velocities in the films have not been registered.
The interaction of electric current with different circular domain structures in amorphous TbFe films has been investigated. In homogeneous distribution of electric current density due to the interaction is observed directly using polarizing microscope. In pulsed operation mode the film regions with higher current density can be heated to critical temperature when maze-like structure arises. Electric current densities used in the experiments are 10 6 A/cm
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