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Influence of slanted nanostripe edges on the dynamics of magnetic domain walls
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Schematic of the nanostripe with a nucleation pad on the left side and the two configurations [blue (dark), red (bright)] used for the measurements and simulations. (b) Schematic cross section of the nanostripe with the magnetization inside the DW core region for the two configurations and two times . The trapezoid is approximated by an ellipse to evaluate the stray field energy generated by the DW core magnetization. (c) TEM image of a cross section of the GMR nanostripe fabricated using FIB. The inset shows an overview of the cross section.

Image of FIG. 2.
FIG. 2.

(a) Velocity (squares) and applied (solid lines) as a function of for both configurations. (b) Single shot measurements for field configurations as specified. For configuration 1 [blue (dark)] the DW is in the precessional regime (thick line), whereas configuration 2 [red (bright)] shows steady state DW movement for almost the same applied fields.

Image of FIG. 3.
FIG. 3.

Normalized stray field energy in the edge region as a function of the out-of-plane magnetization angle with as parameter [see Fig. 1(b)].

Image of FIG. 4.
FIG. 4.

Micromagnetic simulation of the DW movement for the two configurations specified in Fig. 1 and field values as given.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Influence of slanted nanostripe edges on the dynamics of magnetic domain walls