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Type: Artigo de periódico
Title: Giant Magnetoresistance In Melt-spun Granular Cu100-xcox Alloys With Correlated Magnetic Moments
Author: Tiberto P.
Vinai F.
Allia P.
Knobel M.
Abstract: A study of giant magnetoresistance (GMR) has been performed on melt-spun ribbons of Cu100-xCox (5 ≤ x ≤ 20) subjected to DC Joule heating in order to optimise the GMR response. The GMR results, plotted as functions of the reduced magnetisation, exhibit significant deviations from the parabolic behavior predicted in the case of no correlation among magnetic moments. A simple theory of the GMR in Cu-Co granular systems, taking explicitly into account the correlation existing among the magnetic particles, is highlighted. The effect of both Co content and degree of magnetic correlation on the maximum GMR values attained for each composition is briefly discussed. © 1996 IEEE.
Rights: fechado
Identifier DOI: 10.1109/20.539124
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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