Giant magnetoresistance in melt spun Cu85Co10Ni5

Stefano Curiotto, Erik Johnson, Federica Celegato, Marco Coisson, Nini Pryds

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    Abstract

    CuCoNi rapidly solidified alloys are interesting because they display giant magnetoresistance (GMR). In the present work a Cu85Co10Ni5 alloy has been synthesized by melt spinning and analysed for GMR. The ribbons obtained have been annealed at different temperatures and the evolution of the crystal structure with annealing has been studied by X-ray diffraction. The. ne microstructure has been observed by TEM and related to the magnetic properties, investigated in a vibrating sample magnetometer. In the studied composition the magnetoresistance was found to be lower than in binary CuCo alloys without Ni addition. (C) 2008 Elsevier B.V. All rights reserved.
    Original languageEnglish
    JournalJournal of Magnetism and Magnetic Materials
    Volume321
    Issue number3
    Pages (from-to)131-136
    ISSN0304-8853
    DOIs
    Publication statusPublished - 2009

    Keywords

    • Magnetic refrigeration
    • Fuel Cells and hydrogen
    • Superconducting materials for the energy sector

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