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Giant Magnetoresistance Calculated from First Principles

Published online by Cambridge University Press:  03 September 2012

W. H. Butler ,
James M. MacLaren  and
X.-G. Zhang
W. H. Butler
Affiliation:
Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831–6114
James M. MacLaren
Affiliation:
Department of Physics, Tulane University, New Orleans, Louisiana 70118
X.-G. Zhang
Affiliation:
Center for Computational Sciences, University of Kentucky, Lexington, Kentucky 40506–0045
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Abstract

The Layer Korringa Kohn Rostoker-Coherent Potential Approximation technique was used to calculate the low temperature Giant Magnetoresistance from first principles for Co|Cu and permalloy|Cu superlattices. Our calculations predict large giant Magnetoresis-tance ratios for Co|Cu and extremely large ratios for permalloy|Cu for current perpendicular to the layers. Mechanisms such as spin-orbit coupling which mix spin channels are expected to greatly reduce the GMR effect for permalloy|Cu.

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 , 59
Copyright
Copyright © Materials Research Society 1993

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References

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