Universal angular magnetoresistance and spin torque in ferromagnetic/normal metal hybrids
Mesoscale and Nanoscale Physics
2009-11-07 v1 Materials Science
Abstract
The electrical resistance of ferromagnetic/normal-metal (F/N) heterostructures depends on the nature of the junctions which may be tunnel barriers, point contacts, or intermetallic interfaces. For all junction types, the resistance of disordered F/N/F perpendicular spin valves as a function of the angle between magnetization vectors is shown to obey a simple universal law. The spin-current induced magnetization torque can be measured by the angular magnetoresistance of these spin valves. The results are generalized to arbitrary magnetoelectronic circuits.
Keywords
Cite
@article{arxiv.cond-mat/0205453,
title = {Universal angular magnetoresistance and spin torque in ferromagnetic/normal metal hybrids},
author = {Gerrit E. W. Bauer and Yaroslav Tserkovnyak and Daniel Huertas-Hernando and Arne Brataas},
journal= {arXiv preprint arXiv:cond-mat/0205453},
year = {2009}
}