Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8155377 | Journal of Magnetism and Magnetic Materials | 2016 | 5 Pages |
Abstract
We studied the gyrotropic motion of a magnetic vortex in a multi-nanocontacts system, where spin-polarized out-of-plane dc currents were injected into a nanodisk through a centered nanocontact and several circle-distributed off-centered nanocontacts. It was found that the number of the off-centered nanocontacts, the direction combination of the currents, the current density, and the distance between the centered and the off-centered nanocontact all influence the gyrotropic motion of vortex, including vortex core orbits, eigenfrequency, and instantaneous gyrotropic frequency.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Yan Liu, Min Jia, Huanan Li, Yong Hu, An Du,