Current-induced spin dynamics in spin-valve structures
Abstract
The Landau-Lifshitz-Gilbert equation for the magnetization dynamics, extended by including the torque due to spin-transfer from conduction electrons, is used to study current-induced magnetic switching and stationary precessional modes. The spin torque is described in terms of a macroscopic model based on the classical spin diffusion equations and relevant boundary conditions. The approach allows to investigate current-driven switching, in particular the switching time and the frequency of the associated magnetoresistance signal in the precessional regime. (
- Publication:
-
Physica Status Solidi B Basic Research
- Pub Date:
- January 2006
- DOI:
- 10.1002/pssb.200562520
- Bibcode:
- 2006PSSBR.243..219G