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|Type:||Artigo de periódico|
|Title:||Giant magnetoresistance in magnetic granular Co15Cu85 alloys annealed by direct-current Joule heating|
|Abstract:||We have studied the structure and giant magnetoresistance (GMR) in the Co15Cu85 granular alloys prepared by melt-spinning and annealed by the direct-current (de) Joule heating. At T= 10 K, GMR as large as 50.0% (in a magnetic field up to 30 kOe) has been observed in a sample annealed with I = 6 A. The Joule-heated samples show higher GMR than those annealed by the conventional method. It is attributed to less content of residual Co in the Cu matrix for the de Joule-heated samples than that for the samples annealed in a furnace.|
|Editor:||Elsevier Science Bv|
|Citation:||Journal Of Magnetism And Magnetic Materials. Elsevier Science Bv, v. 164, n. 41671, n. 99, n. 104, 1996.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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