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arxiv: 1405.3543 · v1 · pith:VGG2AFR5new · submitted 2014-05-14 · ❄️ cond-mat.supr-con

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
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Saleem James Denholme Hiroyuki Okazaki Masaya Fujioka Takahide Yamaguchi Hiroyuki Takeya Yoshihiko Takano
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classification ❄️ cond-mat.supr-con
keywords reactionbattery-likefete0inducedsuperconductingsuperconductivityvoltageacid
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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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