Low-temperature synthesis of ordered L10-FePtCu nanoparticles with high coercivity

Han Wool Ryu, Kazuhisa Sato, Yoshihiko Hirotsu

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Oriented and densely dispersed L10-FePtCu nanoparticles have been directly synthesized by co-evaporation of Fe, Pt and Cu using rf-magnetron sputtering onto NaCl substrate kept at 563-613K without any post-deposition annealing. Under as low a substrate temperature as 563K, superlattice reflections of the L10 phase appeared in selected area electron diffraction pattern, while the intensity was quite weak. As the substrate temperature increased from 563K to 613K, 〈100〉 oriented growth as well as the atomic ordering were promoted, resulted in a large increase of coercivity.

    Original languageEnglish
    Title of host publicationAdvances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia
    PublisherTrans Tech Publications Ltd
    Pages855-858
    Number of pages4
    EditionPART 1
    ISBN (Print)3908451310, 9783908451310
    DOIs
    Publication statusPublished - 2007
    EventIUMRS International Conference in Asia 2006, IUMRS-ICA 2006 - Jeju, Korea, Republic of
    Duration: 2006 Sep 102006 Sep 14

    Publication series

    NameSolid State Phenomena
    NumberPART 1
    Volume124-126
    ISSN (Print)1012-0394

    Other

    OtherIUMRS International Conference in Asia 2006, IUMRS-ICA 2006
    CountryKorea, Republic of
    CityJeju
    Period06/9/1006/9/14

    Keywords

    • FePtCu nanoparticles
    • Low temperature ordering
    • Sputtering
    • TEM

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Materials Science(all)
    • Condensed Matter Physics

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