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|Type:||Artigo de periódico|
|Title:||The effect of particle size and surface-to-volume ratio distribution on giant magnetoresistance (GMR) in melt-spun Cu-Co alloys|
|Abstract:||Giant magnetoresistance (GMR), magnetization and structure of granular Cu90Co10 alloy were investigated. The annealed sample is inhomogeneous with respect to the Go-particle sizes and interparticles distances and, therefore, not all particles behave superparamagnetically. The ob served deviation from the expected theoretically quadratic dependence of GMR on magnetization can be attributed to differentiated surface-to-volume ratio of superparamagnetic particles as well as to the presence of a small amount of ferromagnetic phase which is created by relatively large Go-rich regions. (C) 1999 Elsevier Science B.V. All rights reserved.|
|Editor:||Elsevier Science Bv|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
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