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Spin reorientation via antiferromagnetic coupling

Journal article
Authors Mojtaba Ranjbar
R. Sbiaa
Randy K. Dumas
Johan Åkerman
S. N. Piramanayagam
Published in Journal of Applied Physics
Volume 115
Issue 17
ISSN 0021-8979
Publication year 2014
Published at Department of Physics (GU)
Language en
Links dx.doi.org/10.1063/1.4852076
Subject categories Physical Sciences

Abstract

Spin reorientation in antiferromagnetically coupled (AFC) Co/Pd multilayers, wherein the thickness of the constituent Co layers was varied, was studied. AFC-Co/Pd multilayers were observed to have perpendicular magnetic anisotropy even for a Co sublayer thickness of 1 nm, much larger than what is usually observed in systems without antiferromagnetic coupling. When similar multilayer structures were prepared without antiferromagnetic coupling, this effect was not observed. The results indicate that the additional anisotropy energy contribution arising from the antiferromagnetic coupling, which is estimated to be around 6 × 106 ergs/cm3, induces the spin-reorientation. © 2014 AIP Publishing LLC.

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