Superconductivity in Fe1+d Te0.9Se0.1 induced by deintercalation of excess Fe using alcoholic beverage treatment

K. Deguchi, S. Demura, T. Yamaki, H. Hara, S. J. Denholme, M. Fujioka, H. Okazaki, H. Takeya, T. Yamaguchi, Y. Takano

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    Superconductivity in polycrystalline Fe1+d Te 0.9Se0.1 was enhanced by heating in alcoholic beverages. We found that part of the excess Fe was deintercalated from the interlayer sites by the treatment and the shielding volume fractions were increased with the reduction of excess Fe content in sample. This behavior is similar to the case of Fe1+d Te1-x S x Thus the technique of alcoholic beverage treatment can be applied generally to the Fe-chalcogenide superconductors.

    Original languageEnglish
    Pages (from-to)305-308
    Number of pages4
    JournalJournal of Superconductivity and Novel Magnetism
    Issue number2
    Publication statusPublished - 2014 Feb


    • Alcoholic beverage treatment
    • Deintercalation
    • Excess Fe
    • Fe-based superconductivity
    • FeTe Se

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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