Abstract
We used numerical simulations to study the dynamical behavior of the transverse domain wall (TDW) in nanowires made of Permalloy-79 contaminated by pointlike magnetic impurities. It was observed that the magnetic impurities can behave both as pinning (attractive) and as scattering (repulsive) sites for the TDW. We have found that the nearer to the bottom edge of the nanowire is located the magnetic impurity, the larger is the magnitude of the pinning and the scattering energy, which agrees with experimental observation. We also observed that the interaction energy and the range of the interaction potential depend on the width of the nanowire. The presence of magnetic impurity affects the motion of the TDW.
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