%0 Journal Article
%T Reversal mode instability and magnetoresistance in perpendicular (Co/Pd)/Cu/(Co/Ni) pseudo-spin-valves
%A J. E. Davies
%A D. A. Gilbert
%A S. M. Mohseni
%A R. K. Dumas
%A J. £¿kerman
%A Kai Liu
%J Physics
%D 2013
%I arXiv
%R 10.1063/1.481339
%X We have observed distinct temperature-dependent magnetization reversal modes in a perpendicular (Co/Pd)4/Co/Cu/(Co/Ni)4/Co pseudo-spin-valve, which are correlated with spin-transport properties. At 300 K, magnetization reversal occurs by vertically correlated domains. Below 200 K the hysteresis loop becomes bifurcated due to laterally correlated reversal of the individual stacks. The magnetic configuration change also leads to higher spin disorders and a significant increase in the giant magnetoresistance effect. First order reversal curve measurements reveal that the coupled state can be re-established through field cycling, and allow direct determination of the interlayer coupling strength as a function of temperature.
%U http://arxiv.org/abs/1307.0853v1