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Underlying mechanism of domain-wall motions in soft magnetic thin-film nanostripes beyond the velocity-breakdown regime
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Left: In-plane configuration of a TW with the nonzero transverse ( direction) component in the nanostripe. The colors denote the local in-plane , as indicated by the color wheel. Right: Representation of half-integer topological charges located at both stripe edges, along with the nucleation sites for V (dark yellow dots) and AV (green dot). The streamlines are along the in-plane orientation of the local . (b) DW displacement vs time curves, for DW motions driven by magnetic fields along long axis of nanostripe of thickness, length, and two different widths of 140 and .

Image of FIG. 2.
FIG. 2.

Serial snapshot images of the temporal dynamic evolution of DW motions in a given nanostripe of and with in (a) and and in (b). The field direction is marked by the yellow colored arrow. The different colors and streamlines indicate the normalized out-of-plane components, as noted by the color bar, and the in-plane orientation, respectively. The red and blue spots indicate the up and down core orientations, respectively. The positions of the moving DWs at indicated times are noted by numbered images.

Image of FIG. 3.
FIG. 3.

Snapshot images (left) and schematic illustrations (right) representing the nucleation, gyrotoropic motion, and annihilation of Vs and AVs, along with spin-wave radiation. (a) and (b) correspond to the dynamic evolutions marked by the red boxes in Figs. 2(a) and 2(b), respectively. The different colors denote the different types of vortices, with the indicated core orientations as noted in the inset.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Underlying mechanism of domain-wall motions in soft magnetic thin-film nanostripes beyond the velocity-breakdown regime