Abstract
Controlling the movement of domain walls in magnetic nanowires is important due to the impact on the viability of data storage devices. A series of micromagnetic simulations of multiple current-induced domain walls motion (CIDWM) have been performed. Multiple CIDWM in the cylindrical permalloy nanowires display outstanding dynamic properties. In cases of different domain bits, we observed the motion of transverse domain walls (TDWs) did not show oscillatory behavior. The domain walls only changed their positions in the same direction as they propagated and kept the distance between the walls almost the same, with their internal magnetic structure unchanged. Furthermore, we have found that the TDW velocity in cylindrical thin wires was closely related to the wire thickness and showed a strong dependence on the Gilbert damping factor.
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