Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/96072
Type: Artigo de periódico
Title: Magnetic Properties And Giant Magnetoresistance In Melt-spun Co-cu Alloys
Author: Yu R.H.
Zhang X.X.
Tejada J.
Knobel M.
Tiberto P.
Allia P.
Abstract: Magnetic, structural, and transport properties of as-quenched and annealed Co10Cu90 samples have been investigated using x-ray diffraction and a SQUID magnetometer. The largest value of MR change was observed for the as-quenched sample annealed at 450°C for 30 min. The magnetic and transport properties closely correlate with the microstructure, mainly with Co magnetic particle size and its distribution. For thermal annealing the as-quenched samples below 600°C, the Co particle diameters increase from 4.0 to 6.0 nm with a magnetoresistance (MR) drop from 33.0% to 5.0% at 10 K. Comparison with the theory indicates that the interfacial electron spin-dependent scattering mechanism correlates with GMR for Co particle diameters up to about 6.0 nm. © 1995 American Institute of Physics.
Editor: 
Rights: aberto
Identifier DOI: 10.1063/1.360613
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0001464461&partnerID=40&md5=462028d620d1cc6b892ce15c9b6da5c9
Date Issue: 1995
Appears in Collections:Unicamp - Artigos e Outros Documentos

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