Current-driven vortex oscillations in metallic nanocontacts
arXiv:0710.5680 · doi:10.1103/PhysRevLett.100.257201
Abstract
We present experimental evidence of sub-GHz spin-transfer oscillations in metallic nano-contacts that are due to the translational motion of a magnetic vortex. The vortex is shown to execute large-amplitude orbital motion outside the contact region. Good agreement with analytical theory and micromagnetics simulations is found.
4 pages, 3 figures