Application of electrochemical method to microfabricated region in single-crystal device of FeSe1%xTex superconductors

Kazuhiro Okada, Tomohiro Takagi, Masahiro Kobayashi, Haruka Ohnuma, Takashi Noji, Yoji Koike, Shinya Ayukawa, Haruhisa Kitano

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The application of an electrochemical method to the iron-based chalcogenide superconductors has great potentials in enhancing their properties such as the superconducting transition temperature. Unfortunately, this method has been limited to polycrystalline powders or thin film samples with a large surface area. Here, we demonstrate that the electrochemical method can be usefully applied to single-crystal devices of FeSe1%xTex superconductors by combining it with the focused ion beam (FIB) microfabrication techniques. Our results open a new route to developing the high-quality superconducting devices fabricated using layered iron-based chalcogenides, whose properties are electrochemically controlled.

Original languageEnglish
Article number040305
JournalJapanese Journal of Applied Physics
Issue number4
Publication statusPublished - Apr 1 2018


ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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