Dissipationless spin-current between Heisenberg ferromagnets with spin-orbit coupling
Strongly Correlated Electrons
2007-05-23 v1
Abstract
A system exhibiting multiple simultaneously broken symmetries offers the opportunity to influence physical phenomena such as tunneling currents by means of external control parameters. Time-reversal symmetry and inversion symmetry are both absent in ferromagnetic metals with substantial spin-orbit coupling. We here study transport of spin in a system consisting of two ferromagnets with spin-orbit coupling separated by an insulating tunneling junction. A persistent spin-current across the junction is found, which can be controlled in a well-defined manner by external magnetic and electric fields. The behavior of the spin-current for important geometries and limits is studied.
Keywords
Cite
@article{arxiv.cond-mat/0604510,
title = {Dissipationless spin-current between Heisenberg ferromagnets with spin-orbit coupling},
author = {J. Linder and M. S. Gronsleth and A. Sudbo},
journal= {arXiv preprint arXiv:cond-mat/0604510},
year = {2007}
}
Comments
7 pages, 3 figures, submitted to Europhysics Letters