Domain walls dynamics in the amorphous ribbon with a helical magnetic anisotropy

It was revealed that the maximum of the total damping coefficient βtot(x) near the half-way of the domain wall run is due to the influence of the magnetic stray fields. These fields have a character of irregular oscillations and are directed approximately perpendicular to the local easy direction of the ribbon layer through which the domain wall propagates. The damping coefficient βe.c.(x) determined by eddy-currents has the maximal value close to the ribbon middle and decreases linearly to zero when the domain wall approaches the ribbon surface.