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arXiv · 0903.1151

Simulation of current-induced microwave oscillation in geometrically confined domain wall

Katsuyoshi Matsushita·Jun Sato·Hiroshi Imamura
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Abstract

We studied magnetization dynamics of a geometrically confined domain wall under dc current by solving simultaneously the Landau-Lifshitz-Gilbert equation and diffusion equation for spin accumulation. We showed that the oscillation motion of the domain wall is driven by the spin-transfer torque and the dc current is converted to the ac voltage signal. The results means that the geometrically confined domain wall is applicable as a source of microwave oscillator.

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Katsuyoshi Matsushita, Jun Sato, Hiroshi Imamura. 2009-03-06. Simulation of current-induced microwave oscillation in geometrically confined domain wall. https://doi.org/10.1063/1.3075555

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