Evidence of inhomogeneous superconductivity in FeTe 1-xSe x by scotch-tape method

Hiroyuki Okazaki, Tohru Watanabe, Takahide Yamaguchi, Yasuna Kawasaki, Keita Deguchi, Satoshi Demura, Toshinori Ozaki, Saleem J. Denholme, Yoshikazu Mizuguchi, Hiroyuki Takeya, Yoshihiko Takano

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    Abstract

    We have fabricated thin films of FeTe 1-xSe x using a scotch-tape method. The superconductivities of the thin films are different from each other although these films were fabricated from the same bulk sample. The result clearly presents the inhomogeneous superconductivity in FeTe 1-xSe x. The difference might arise from inhomogeneity due to the excess Fe concentration. The resistivity of a thin film with low excess Fe shows good superconductivity with the sharp superconducting-transition width and more isotropic superconductivity.

    Original languageEnglish
    Article number113707
    Journaljournal of the physical society of japan
    Volume81
    Issue number11
    DOIs
    Publication statusPublished - 2012 Nov 1

    Keywords

    • FeTe Se
    • Inhomogeneous superconductivity
    • Iron-based superconductor
    • Scotch-tape method
    • Thin film

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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    Okazaki, H., Watanabe, T., Yamaguchi, T., Kawasaki, Y., Deguchi, K., Demura, S., Ozaki, T., Denholme, S. J., Mizuguchi, Y., Takeya, H., & Takano, Y. (2012). Evidence of inhomogeneous superconductivity in FeTe 1-xSe x by scotch-tape method. journal of the physical society of japan, 81(11), [113707]. https://doi.org/10.1143/JPSJ.81.113707