It takes approximately 5 minutes to load the animation sequences at 20KPS, and the best results are obtained with the latest version of Navigator. A special welcome is extended to conference attendees of the MMM'98 Conference, and to my numerical micromagnetic modeling colleagues. Domain wall motion of a 3 micron x 3 micron x 26 nm thick Permalloy element in one magnetization cycle. The right 180 degree wall is itself divided into 2 Bloch lines and 1 crosstie, thus giving the appearance that the rightmost segment is divided into 2 subsections. Note that the left segment, perhaps due to the absence of a crosstie, expands more rapidly than the left.
Technical saturation is achieved as soon as the domains have coalesced.
Note the motion of the central vortex, and the formation of complex edge structures prior to near saturation. The formation of a crosstie on the left edge near saturation is particularly interesting. During the ascending branch of the magnetization, the right domain increases in size and accompanied by the corresponding reduction of the left. Note that prior to coalescence with the growing right domain, the crosstie at the center remains stationary, albeit, the intensity diminishes and cants towards the growing right domain. The crosstie was observed only during the initial remanent state and in the ascending branch, but not during the descending branch and negative field.