Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/22071
Title: Magnetic properties and giant magnetoresistance in melt-spun CoCu alloys
Author: Yu, Ronghai
Zhang, Xixiang
Tejada Palacios, Javier
Knobel, M.
Tiberto, P.
Allia, P.
Keywords: Aliatges coure-cobalt
Propietats magnètiques
Magnetoresistència
Materials granulars
Copper-cobalt alloys
Magnetic properties
Magnetoresistance
Granular materials
Issue Date: 1995
Publisher: American Institute of Physics
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.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1063/1.360613
It is part of: Journal of Applied Physics, 1995, vol. 78, núm. 1, p. 392-397
URI: http://hdl.handle.net/2445/22071
ISSN: 0021-8979
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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