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Effect of Hybridization on Exchange Coupling in Magnetic Multilayers

Published online by Cambridge University Press:  03 September 2012

J. Mathon ,
M.A. Villeret ,
J.M. Mander ,
D.M. Edwards  and
R.B. Muniz
J. Mathon
Affiliation:
City University, Department of Mathematics, London EC1V OHB, UK.
M.A. Villeret
Affiliation:
City University, Department of Mathematics, London EC1V OHB, UK.
J.M. Mander
Affiliation:
City University, Department of Mathematics, London EC1V OHB, UK.
D.M. Edwards
Affiliation:
Imperial College, Department of Mathematics, London SW7 2BZ, UK.
R.B. Muniz
Affiliation:
Federal University Fluminense, Department of Physics, Niteroi, RJ24020, Brazil.
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Abstract

An earlier theory of the exchange coupling between two ferromagnets separated by a nonmagnetic transition metal spacer was based on size quantization of the electron energies in the spacer. It is now generalized to include the effect of hybridization between the conduction and d bands both in the ferromagnet and in the spacer. The new theory thus unifies the approach based on coupling via d electrons, valid for transition metal spacers, with RKKY-type theories for noble and simple metals which rely on coupling via conduction electrons. The theory is applied to calculate the period and strength of the long-period oscillatory coupling in (001) CO/Cu trilayer.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 313: Symposium Q1 – Magnetic Ultrathin Films, Multilayers and Surfaces/Magnetic Interfaces-Physics and Characterizations , 1993 , 171
Copyright
Copyright © Materials Research Society 1993

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References

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