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Magnetism and Magnetoresistance of Multilayers with Two Magnetic Components. II. Au-Based Films

Published online by Cambridge University Press:  26 February 2011

T. Okuyama ,
H. Dohnomae ,
H. Yamamoto  and
T. Shinjo
T. Okuyama
Affiliation:
Institute for Chemical Research, Kyoto University, Uji,Kyoto-fu 611, Japan
H. Dohnomae
Affiliation:
Institute for Chemical Research, Kyoto University, Uji,Kyoto-fu 611, Japan
H. Yamamoto
Affiliation:
Institute for Chemical Research, Kyoto University, Uji,Kyoto-fu 611, Japan
T. Shinjo
Affiliation:
Institute for Chemical Research, Kyoto University, Uji,Kyoto-fu 611, Japan
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Abstract

Magnetoresistance(MR) properties of Au-based multilayers including two magnetic components, i.e.\Au/Co/Au/Ni(Fe)]xn, were investigated and compared with those of Cu-based films. The interlayer coupling between Co and Ni(Fe) through Au layer was found to be strongly antiferromagnetic if the thickness is less than 35Å. Antiparallel alignment of magnetizations caused by the difference in the coercive fields of Co and Ni(Fe) layers is realized when the Au layer thickness is larger than 50Å. Then, the resistance is enhanced by the spin-dependent scattering but the observed MR ratio is smaller than the case of Cu-based multilayers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 231: Symposium S – Magnetic Surfaces, Thin Films and Multilayers , 1991 , 223
Copyright
Copyright © Materials Research Society 1992

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References

[1] Shinjo, T. and Yamamoto, H., J. Phys. Soc. Jpn. Jpn. 59(1990)3061 H.Yamamoto,H.Dohnomae,T.Okuyama and T.Shinjo, the preceding paper in this volume.Google Scholar
[2] Dohnomae, H., Okuyama, T., Yamamoto, H. and Shinjo, T.,in preparation.Google Scholar