Current-driven vortex oscillations in metallic nanocontacts
- Mistral, Q.
- van Kampen, M.
- Hrkac, G.
- Kim, J.V.
- Devolder, T.
- Crozat, P.
- Chappert, C.
- Lagae, L.
- Schrefl, T.
Publication date
June 2008
DOI Publisher
American Physical Society (APS) ISSN
0031-9007Abstract
We present experimental evidence of subgigahertz spin-transfer oscillations in metallic nanocontacts 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
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