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arXiv · 0710.5680

Current-driven vortex oscillations in metallic nanocontacts

Q. Mistral·M. van Kampen·G. Hrkac·Joo-Von Kim·T. Devolder·P. Crozat·C. Chappert·L. Lagae·T. Schrefl
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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.

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Q. Mistral, M. van Kampen, G. Hrkac, Joo-Von Kim, T. Devolder, P. Crozat, C. Chappert, L. Lagae, T. Schrefl. 2007-10-30. Current-driven vortex oscillations in metallic nanocontacts. https://doi.org/10.1103/physrevlett.100.257201

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