Spin-current vortices in current-perpendicular-to-plane nanoconstricted spin-valves
Mesoscale and Nanoscale Physics
2011-07-14 v2 Materials Science
Other Condensed Matter
Abstract
The charge and spin diffusion equations taking into account spin-flip and spin-transfer torque were numerically solved using a finite element method in complex non-collinear geometry with strongly inhomogeneous current flow. As an illustration, spin-dependent transport through a non-magnetic nanoconstriction separating two magnetic layers was investigated. Unexpected results such as vortices of spin-currents in the vicinity of the nanoconstriction were obtained. The angular variations of magnetoresistance and spin-transfer torque are strongly influenced by the structure geometry.
Cite
@article{arxiv.1001.5367,
title = {Spin-current vortices in current-perpendicular-to-plane nanoconstricted spin-valves},
author = {N. Strelkov and A. Vedyayev and N. Ryzhanova and D. Gusakova and L. D. Buda-Prejbeanu and M. Chshiev and S. Amara and N. de Mestier and C. Baraduc and B. Dieny},
journal= {arXiv preprint arXiv:1001.5367},
year = {2011}
}
Comments
11 pages, 5 figures