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Tunable steady-state domain wall oscillator with perpendicular magnetic anisotropy
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10.1063/1.3238314
/content/aip/journal/apl/95/16/10.1063/1.3238314
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/16/10.1063/1.3238314
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic illustration of the geometrically confined structure. The arrows represent the magnetization configuration inside the structure, which can be either a Bloch or a Néel domain wall.

Image of FIG. 2.
FIG. 2.

Domain wall oscillation frequency as a function of the injected spin current drift velocity for constant α = (0.15, 0.25). The oscillation frequency shows a linear dependence on the current density over a broad frequency range between 500 MHz and 3.5 GHz. (A) The domain wall profile is symmetric under rotation for low current density . (B) At high current density , the domain wall shows asymmetric oscillations, this leads to a nonharmonic behavior.

Image of FIG. 3.
FIG. 3.

Fourier spectrum of the magnetization component as a function of frequency for and various external field strength . At zero field, a sharp peak indicates an oscillation frequency of , whereas for higher field strenghts the oscillation frequency is shifted to lower frequencies down to (indicated by the red dashed line). Furthermore, higher order oscillations are visible by the peaks forming at higher frequencies.

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/content/aip/journal/apl/95/16/10.1063/1.3238314
2009-10-22
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tunable steady-state domain wall oscillator with perpendicular magnetic anisotropy
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/16/10.1063/1.3238314
10.1063/1.3238314
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