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Magnetic Properties of Multilayered Co-Cu Granular Composites

Published online by Cambridge University Press:  15 February 2011

A. Cabbibo ,
J.A. Caballero ,
Y.D. Park  and
J.R. Childress
A. Cabbibo
Affiliation:
Department of Materials Science and Engineering, University of Florida Gainesville, Florida 32611
J.A. Caballero
Affiliation:
Department of Materials Science and Engineering, University of Florida Gainesville, Florida 32611
Y.D. Park
Affiliation:
Department of Materials Science and Engineering, University of Florida Gainesville, Florida 32611
J.R. Childress
Affiliation:
Department of Materials Science and Engineering, University of Florida Gainesville, Florida 32611
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Abstract

The magnetic properties of granular CO25Cu75/CU multilayer films prepared by sputtering onto heated glass substrates have been investigated in the range of ultrathin alloy films (5–250Á) and Cu spacer thicknesses (0–50Å). Both the coercive field at 10K and the maximum superparamagnetic blocking temperature TB are found to be sensitive to finite-size effects in single-layer films, and to interactions between layers in multilayer films. Our results indicate that the magnetic properties of granular alloy layers can be engineered to a large extent by selectively modifying the local environment of the Co particles.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 475: Symposium M – Magnetic Ultrathin Films, Multilayers, and Surfaces – 1997 , 1997 , 357
Copyright
Copyright © Materials Research Society 1997

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References

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