Introduction of artificial pinning centers to improve Je properties of REBa2Cu3Oy films under magnetic fields-microstructures of impurity nanorods and their growth mechanism-

Ataru Ichinose, Kaname Matsumoto, Masashi Mukaida, Yutaka Yoshida, Ryusuke Kita, Shigeru Horii

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    1 Citation (Scopus)

    Abstract

    Microstructures of impurity nanorods as a c-axis correlation pinning centers in REBa2Cu3Oy, films (RE: rare earth elements) have been examined by transmission electron microscopy (TEM). On the basis of the microstructure analyses, the possibility of controlling nanorod structures such as diameter and density was discussed. Furthermore, narnorod growth mechanism was discussed in relation with superconducting film growth. As a result, the formation of nanorods was affected by the stress fields generated by differences of crystal length between the superconductors and impurity materials. The various nanorod structures by changing impurity materials or growth conditions could be explained using the segregation coefficient.

    Original languageEnglish
    Pages (from-to)409-415
    Number of pages7
    JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
    Volume74
    Issue number7
    DOIs
    Publication statusPublished - Jul 2010

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics
    • Mechanics of Materials
    • Metals and Alloys
    • Materials Chemistry

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