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Type: Artigo de periódico
Title: Magnetic Properties In Granular Co10cu90 Alloys: The Effect Of Random Anisotropy And Interparticle Interactions
Author: Nunes W.C.
Novak M.A.
Knobel M.
Hernando A.
Abstract: The magnetization curves of Co10Cu90 as-cast and annealed melt-spun ribbons were measured for 4.2 < T < 600K. The narrow hysteresis found in these systems present an unusual temperature dependence of the coercive field Hc(T), in most samples with a decrease in the low T region due to superparamagnetic unblocking followed by an increase in T and a maximum around room temperature. These results are explained in analogy to soft nanocrystalline alloys using the random anisotropy model and the existence of interparticle interactions. © 2001 Elsevier Science B.V. All rights reserved.
Rights: fechado
Identifier DOI: 
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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