The passage of spin-polarized currents through magnetic nanocontacts can lead to the excitation of self-sustained
vortex oscillations in the free layer of a spin-valve stack. These oscillations involve the large amplitude translational
motion of the vortex core about the contact region, with oscillation frequencies typically in the 200-500
MHz range. Here, we present a detailed experimental study of such current-driven vortex oscillations. In particular,
we show that the oscillation mode is possible in zero applied magnetic field and is only stable within a
range of in-plane applied fields.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.