Superconductivity in FeTe{1-x}S_x induced by electrochemical reaction using ionic liquid solution

Abstract

Superconductivity in FeTe0.8S0.2 is successfully induced by an electrochemical reaction using an ionic liquid solution. A clear correlation between the Fe concentration in the solution and the manifestation of superconductivity was confirmed, suggesting that superconductivity was induced by the deintercalation of excess iron.

14 pages, 4 figures

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