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Optimized cobalt nanowires for domain wall manipulation imaged by in situ Lorentz microscopy
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10.1063/1.4776709
/content/aip/journal/apl/102/2/10.1063/1.4776709
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/2/10.1063/1.4776709
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Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic representation of the procedure to determine HN and HP by magnetic field dependent LTEM (from left to right). (b) Low magnification TEM image of a 500-nm-wide L-shaped FEBID Co nanowire. Insets: Underfocused Lorentz images of the kink when (c) the magnetization is saturated (H > Hsat), and (d) the DW is nucleated (H ≥ HN), where the Fresnel contrast is reversed.

Image of FIG. 2.
FIG. 2.

Dependence of the nucleation fields as a function of (a) the width and (b) the thickness of the nanowires. In (a), some thicknesses are not plotted for the sake of clarity.

Image of FIG. 3.
FIG. 3.

Comparison between the nucleation fields and the propagation fields for the 500-nm-wide Co nanowires as a function of the thickness.

Image of FIG. 4.
FIG. 4.

(a) Sequence of out-of-focus Lorentz images of L-shaped nanowires as a function of the thickness in 500 nm-wide Co NWs. (b)–(e) TIE-reconstructed in-plane magnetic induction of a Co NW in the TW regime (t = 10 and 13 nm), in the VW regime (t = 30 nm), with an intermediate state between TW and VW (w = 19 nm). (f)–(i) Micromagnetic simulations of the NWs reconstructed by TIE. The inset in (b) shows the color code used for the different orientations in all the figures.

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/content/aip/journal/apl/102/2/10.1063/1.4776709
2013-01-17
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optimized cobalt nanowires for domain wall manipulation imaged by in situ Lorentz microscopy
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/2/10.1063/1.4776709
10.1063/1.4776709
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