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Nonlinear motion of magnetic vortex under alternating-current magnetic field: Dynamic correction of a gyrovector and a damping tensor of the Thiele’s equation
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10.1063/1.3645595
/content/aip/journal/apl/99/14/10.1063/1.3645595
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/14/10.1063/1.3645595
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Frequency-dependent steady-state and maximum amplitudes of the magnetic vortex core forced oscillation normalized by the disk radius under AC external field of 1 mT amplitude.

Image of FIG. 2.
FIG. 2.

(Color online) Y-position of the vortex core normalized by the disk radius from the micromagnetic simulation (black solid square), from the prediction of the original Thiele’ equation (red open circle), and from the prediction of the Thiele’s equation with addition of term (green open triangle) for the AC field amplitude of 1 and 2 mT and the AC field frequency of 100 and 150 MHz.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Time-dependent modification of the gyrovector () and the vortex core distance from the disk center. (b) Normalized y-position of the vortex core from the micromagnetic simulation (black solid square) and from the Thiele’s equation with correction of (red open circle).

Image of FIG. 4.
FIG. 4.

(Color online) (a) Damping elements ( and) and the vortex core positions ( and ) determined from the micromagnetic simulation. (b) Normalized y-position and trajectory of the vortex core determined from the micromagnetic simulation and from the Thiele’s equation with dynamic correction of and for 1 mT AC field amplitude.

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/content/aip/journal/apl/99/14/10.1063/1.3645595
2011-10-06
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nonlinear motion of magnetic vortex under alternating-current magnetic field: Dynamic correction of a gyrovector and a damping tensor of the Thiele’s equation
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/14/10.1063/1.3645595
10.1063/1.3645595
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