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Magneto-Optic Properties of CU/CO and PD/CO Multilayers

Published online by Cambridge University Press:  21 February 2011

Craig D. England ,
Don C. Person ,
Wayne R. Bennett ,
Wolfgang Reim  and
Charles M. Falco
Craig D. England
Affiliation:
Optical Sciences Center and Department of Physics, University of Arizona, Tucson, AZ 85721.
Don C. Person
Affiliation:
Aracor Corp., Sunnyvale, CA.
Wayne R. Bennett
Affiliation:
IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120.
Wolfgang Reim
Affiliation:
Siemens AG, 8520 Erlangen, F.R.G.
Charles M. Falco
Affiliation:
Optical Sciences Center and Department of Physics, University of Arizona, Tucson, AZ 85721.
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Abstract

Magnetic multilayers consisting of alternating layers of cobalt and either copper or palladium have been made by magnetically enhanced dc triode sputtering onto single crystal sapphire substrates. The structural, magnetic and magnetooptic properties of these multilayers have been studied. Both multilayer systems have fcc crystalline layering. We find the magnetization in the Cu/Co multilayers is due to the cobalt layers, whereas the magnetization in the Pd/Co system comes from both cobalt and palladium layers. Also, the magnetic anisotropy of the two systems is different. The Cu/Co multilayers have an inplane easy axis of magnetization due to the strong shape anisotropy. The Pd/Co multilayers exhibit a perpendicular easy axis of magnetization for thin cobalt layers due to a large interface anisotropy contribution. The Kerr rotation of the Cu/Co and Pd/Co multilayers has been studied to determine the effect of multilayer structure on magneto-optic properties. The results of the magnetooptic characterization of these multilayer systems are presented here.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 150: Symposium F – Materials for Magneto-Optic Data Storage , 1989 , 103
Copyright
Copyright © Materials Research Society 1989

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References

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