Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/52912
Type: Artigo de periódico
Title: MAGNETIC-PROPERTIES AND GIANT MAGNETORESISTANCE IN MAGNETIC GRANULAR COXCU100-X ALLOYS
Author: YU, RH
ZHANG, XX
TEJADA, J
KNOBEL, M
TIBERTO, P
ALLIA, P
Abstract: Magnetic granular CoxCu100-x alloys (x = 5-20) have been prepared by melt-spinning acid subsequently annealing at 450 degrees C for 30 min, which is most appropriate for obtaining the largest MR change with magnetic field in each sample. The highest magnetoresistance (MR) change of 42.5% was observed in annealed Co15CU85 ribbons. Based on the superparamagnetic assumption, the average size of Co particles embedded in a Cu-rich matrix for different samples, ranging from 3.5 to 5.5 nm, has been estimated by simulating the magnetization curves at room temperature which is higher than the blocking temperature T-B for each sample. The value of MR change was found to strongly depend on the Co composition and annealing temperature.
Country: Inglaterra
Editor: Iop Publishing Ltd
Rights: fechado
Identifier DOI: 10.1088/0022-3727/28/9/003
Date Issue: 1995
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
WOSA1995RW62700003.pdf510.11 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.