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Self-organization and magnetic domain microstructure of Fe nanowire arrays
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View: Figures


Image of FIG. 1.
FIG. 1.

Topographic images of the stepped (a) and flat (b) W substrates. Atomic steps appear as dark lines. The dark bands in image (a) are the regions of the surface showing pronounced step bunching. The field of view is .

Image of FIG. 2.
FIG. 2.

Influence of the dewetting process on the magnetization reorientation. The field of view is . Dewetted regions appear dark in the two topographic images [(a) and (e)]. The corresponding magnetic images for a spin polarization along the [(b) and (f)] and [001] [(c) and (g)] directions show how the shape of the dewetted regions affects the magnetization distribution of the continuous film. Depending on the substrate morphology, complete annealing leads to the formation of single-domain Fe wires magnetized along the [001] direction (d), or Fe wires exhibiting more complex magnetic domain microstructure. See text for details.

Image of FIG. 3.
FIG. 3.

(a) Topographic image of a wire obtained after annealing a 14-monolayer-thick flat film at 600 K. Corresponding magnetic images for an incident spin polarization along the (b), [001] (c), and [101] (d) directions. (e) Sketch of the magnetization distribution in a wire resulting from the competition between surface and shape anisotropies.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Self-organization and magnetic domain microstructure of Fe nanowire arrays