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Stepwise behavior of the core trajectory in magnetic vortex dynamics under an alternating-current magnetic field
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10.1063/1.4803065
/content/aip/journal/jap/113/17/10.1063/1.4803065
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4803065
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Initial vortex core motion for disks with different radius (R) from 150 to 500 nm for an AC field amplitude of 1 mT at each resonance frequency (f). Open circle represents when the radius increases while a closed circle is represents when the radius decreases.

Image of FIG. 2.
FIG. 2.

and during initial 30 ns period for the AC field frequency of resonance and the AC field amplitude of 1 mT.

Image of FIG. 3.
FIG. 3.

Initial vortex core motion for disks with different damping parameter (α) for a disk with a radius of 250 nm. The AC field amplitude is 2 mT. Open circle represents when the radius increases while a closed circle is represents when the radius decreases.

Image of FIG. 4.
FIG. 4.

FFT amplitude (closed square) and phase (open square) of (a) and (b) .

Image of FIG. 5.
FIG. 5.

and for the initial 80 ns period, which is categorized into three regions. vs. is plotted on the bottom for three regions of increasing (bottom left), decreasing (bottom center), and decaying region (bottom right).

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/content/aip/journal/jap/113/17/10.1063/1.4803065
2013-05-01
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Stepwise behavior of the core trajectory in magnetic vortex dynamics under an alternating-current magnetic field
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4803065
10.1063/1.4803065
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