期刊
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
卷 519, 期 -, 页码 104-107出版社
ELSEVIER
DOI: 10.1016/j.physc.2015.09.005
关键词
Superconductivity; Electrochemical sodium intercalation; FeSe
资金
- Grants-in-Aid for Scientific Research [15J00940] Funding Source: KAKEN
Iron-chalcogenide-based superconductors have attracted much attention due to theft relatively high superconducting transition temperatures (T-c) and their simple layered crystal structures. We have performed electrochemical co-intercalation of Na and propylene carbonate (PC) into FeSe, and successfully synthesized a new superconductor, Na-x(PC)(y)Fe2Se2, with T-c = 43 K. The type and amount of intercalated metal, and the electrolyte used in the intercalation affected the superconductivity. Our electrochemical intercalation method should be a useful tool for discovering new superconductors by controlling the intercalation conditions. (C) 2015 Elsevier B.V. All rights reserved.
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