Current-driven vortex oscillations in metallic nanocontacts.
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.
Mistral
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Institut d'Electronique Fondamentale, UMR CNRS 8622, Université Paris-Sud, 91405 Orsay cedex, France.
van Kampen
M
M
Hrkac
G
G
Kim
Joo-Von
JV
Devolder
T
T
Crozat
P
P
Chappert
C
C
Lagae
L
L
Schrefl
T
T