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arXiv · 1405.3543

Superconductivity in FeTe0.8S0.2 induced by battery-like reaction

Aichi Yamashita·Satoshi Demura·Masashi Tanaka·Keita Deguchi·Takuma Yamaki·Hiroshi Hara·Kouji Suzuki·Yunchao Zhang·Saleem James Denholme·Hiroyuki Okazaki·Masaya Fujioka·Takahide Yamaguchi·Hiroyuki Takeya·Yoshihiko Takano
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Abstract

Superconductivity is successfully induced by utilizing a battery-like reaction found in a typical Li-ion battery. Excess Fe in FeTe0.8S0.2 is electrochemically de-intercalated by applying a voltage in a citric acid solution. The superconducting properties improve with an increase in the applied voltage up to 1.5 V. This result suggests that an electrochemical reaction can be used as a novel method to develop new superconducting materials.

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Aichi Yamashita, Satoshi Demura, Masashi Tanaka, Keita Deguchi, Takuma Yamaki, Hiroshi Hara, Kouji Suzuki, Yunchao Zhang, Saleem James Denholme, Hiroyuki Okazaki, Masaya Fujioka, Takahide Yamaguchi, Hiroyuki Takeya, Yoshihiko Takano. 2014-05-14. Superconductivity in FeTe0.8S0.2 induced by battery-like reaction. https://doi.org/10.1016/j.ssc.2014.09.014

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