Characterization of electrodeposited Co-Pt nanodot array at initial deposition stage

Siggi Wodarz, Tomohiro Otani, Hiroki Hagiwara, Takayuki Homma

    研究成果: Conference contribution

    2 引用 (Scopus)

    抜粋

    We have fabricated Co-Pt nanodot arrays by electrochemical process for the application of bit patterned media (BPM), which is proposed as a key technology for future recording media. Since formation of uniform nanodot arrays is required for BPM, controlling the initial stages of electrodeposition is significant. In this work, we analyzed the effects of applied potential and size of nano-patterns on initial stages of Co-Pt electrodeposition. As a result, number of Co-Pt nuclei decreased in smaller nano-pore. In particular, formation of Co-Pt single grains, which exhibit high and uniform coercivity, was expected with low overpotential in nanopore with 10 nm diameter. Furthermore, coercivities of Co-Pt films at the initial stage increased with lower overpotential, since Co-Pt nucleated and grew along with Ru underlayer with high orientation. These results indicate that magnetic properties of Co-Pt nanodot arrays can be optimized by controlling the nucleation and growth behavior of Co-Pt.

    元の言語English
    ホスト出版物のタイトルECS Transactions
    出版者Electrochemical Society Inc.
    ページ99-105
    ページ数7
    64
    エディション45
    ISBN(印刷物)9781607685395
    DOI
    出版物ステータスPublished - 2015
    イベントSymposium on Student Poster General Session - 2014 ECS and SMEQ Joint International Meeting - Cancun, Mexico
    継続期間: 2014 10 52014 10 9

    Other

    OtherSymposium on Student Poster General Session - 2014 ECS and SMEQ Joint International Meeting
    Mexico
    Cancun
    期間14/10/514/10/9

    ASJC Scopus subject areas

    • Engineering(all)

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  • これを引用

    Wodarz, S., Otani, T., Hagiwara, H., & Homma, T. (2015). Characterization of electrodeposited Co-Pt nanodot array at initial deposition stage. : ECS Transactions (45 版, 巻 64, pp. 99-105). Electrochemical Society Inc.. https://doi.org/10.1149/06445.0099ecst