Computer simulation of domain wall and vertical Bloch line motion in a bubble garnet film

Vertical Bloch lines(VBLs) and wall motion are studied by using computer simulation. The effect of potential wells, necessary for stable VBLs propagation, on the hard wall dynamics is investigated by the simulation. It is proved that the wall velocity decreases or the wall motion becomes oscillatory due to the potential wells. An isolated VBL propagation under a pulsed in-plane field is investigated.