Surface spin-transfer torque and spin-injection effective field in ferromagnetic junctions: Unified theory
Materials Science
2009-11-11 v2 Mesoscale and Nanoscale Physics
Abstract
We consider theoretically a current flowing perpendicular to interfaces of a spin-valve type ferromagnetic metallic junction. For the first time an effective approach is investigated to calculate a simultaneous action of the two current effects, namely, the nonequilibrium longitudinal spin injection and the transversal spin-transfer surface torque. Dispersion relation for fluctuations is derived and solved. Nonlinear problem is solved about steady state arising due to instability for a thick enough free layer.
Keywords
Cite
@article{arxiv.cond-mat/0505268,
title = {Surface spin-transfer torque and spin-injection effective field in ferromagnetic junctions: Unified theory},
author = {R. J. Elliott and E. M. Epshtein and Yu. V. Gulyaev and P. E. Zilberman},
journal= {arXiv preprint arXiv:cond-mat/0505268},
year = {2009}
}
Comments
9 pages