Electrodeposition as a new route to synthesize superconducting FeSe

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

    Research output: Contribution to journalArticlepeer-review

    24 Citations (Scopus)

    Abstract

    We have successfully synthesized FeSe films by the electrochemical deposition in the electrolyte containing FeCl2·4H 2O, SeO2 and Na2SO4. The composition ratio of Fe and Se was controlled by the synthesis voltage and pH value. The FeSe film with the composition ratio of Fe:Se=1:1 is fabricated at a voltage of -0.9 V and pH 2.1 in our electrochemical deposition. This sample has a highly crystalline tetragonal FeSe structure and exhibits a superconducting transition at 8.1 K, comparable to FeSe synthesized by other methods.

    Original languageEnglish
    Pages (from-to)40-42
    Number of pages3
    JournalSolid State Communications
    Volume154
    Issue number1
    DOIs
    Publication statusPublished - 2013 Jan

    Keywords

    • A. Iron-based superconductor
    • A. Superconductor
    • B. Electrochemical synthesis

    ASJC Scopus subject areas

    • Chemistry(all)
    • Condensed Matter Physics
    • Materials Chemistry

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