TITLE

Perpendicular anisotropy dependence of oscillatory interlayer coupling behavior in [Pt/Co]5/Ru/[Co/Pt]5 multilayers

AUTHOR(S)
Zhao, J.; Wang, Y. J.; Liu, Y. Z.; Han, X. F.; Zhang, Z.
PUB. DATE
July 2008
SOURCE
Journal of Applied Physics;Jul2008, Vol. 104 Issue 2, p023911
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The experiments on the [t1Pt/0.4Co]5/(0.2–5.0)Ru/[0.4Co/t2Pt]5 (thickness unit is nm) multilayers with perpendicular anisotropy (PA) indicate that the interlayer coupling shows an antiferromagnetic (AF) and a ferromagnetic oscillatory behavior with the thickness of Ru spacer layers from 0 to 5.0 nm, and that the AF oscillations display a superposition of two different periods, which are 0.8 and 1.1 nm, respectively. Moreover, we found that the magnitude of AF coupling strength J is closely related to the magnitude of PA caused by varied thickness of nonmagnetic Pt layer. Our experimental results can be explained by Bruno’s electron-optics model.
ACCESSION #
33407245

 

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