An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Collimated spin wave beam generated by a single layer, spin torque nanocontact
Published
Author(s)
Mark Hoefer, Thomas J. Silva, M D. Stiles
Abstract
A model of spin-torque-induced magnetization dynamics based on semiclassical spin diffusion theory for a single-layer nanocontact in presented. The model incorporates effects due to the current-induced Oersted field and predicts the generation of a variety of spatially dependent, coherent, processional magnetics wave structures. Directionally controllable collimated spin wave beams, vortex spiral waves, and localized standing waves are found to be excited by the interplay of the Oersted field and the orientation of an applied field. These fields act as a spin wave 'corral' around the nanocontact that controls the propagation of spin waves in certain directions.
Citation
Physical Review B (Condensed Matter and Materials Physics)
Hoefer, M.
, Silva, T.
and Stiles, M.
(2008),
Collimated spin wave beam generated by a single layer, spin torque nanocontact, Physical Review B (Condensed Matter and Materials Physics)
(Accessed June 4, 2023)