Simulation of current-induced microwave oscillation in geometrically confined domain wall
arXiv:0903.1151 · doi:10.1063/1.3075555
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.
3 pages, 3 figures