A novel approach for preparing Fe(Te xS y) superconducting films: Solid phase epitaxial growth from amorphous precursors

T. Yoshimoto, Y. Fujii, R. Teranishi, K. Kurumi, K. Yoshida, Y. Yoshida, Y. Ichino, T. Nishiyama, S. Munetoh, K. Kaneko

    研究成果: ジャーナルへの寄稿学術誌査読

    4 被引用数 (Scopus)

    抄録

    Fe(Te xS y) films were fabricated on (100) SrTiO 3 substrates from Fe(Te 0.65S 0.16) amorphous precursors by a solid phase epitaxial growth process under various background atmospheric conditions. Structural analysis by x-ray diffraction showed strong peaks corresponding to Fe(Te xS y) phases, when the amorphous precursors were heated with Fe(Te 0.8S 0.2) sintered pellets. The crystallinity of the films deteriorated at longer periods of heating but the compositional shifts were found to have decreased. Consequently, the critical temperature, T Czero, of the Fe(Te xS y) film with minimum compositional shift was found to be 9.0K and critical current density, J C, of the film was about 1.4×10 4Acm 2.

    本文言語英語
    論文番号105013
    ジャーナルSuperconductor Science and Technology
    25
    10
    DOI
    出版ステータス出版済み - 10月 1 2012

    All Science Journal Classification (ASJC) codes

    • セラミックおよび複合材料
    • 凝縮系物理学
    • 金属および合金
    • 電子工学および電気工学
    • 材料化学

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