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Solid-State Electrochemical Switch of Superconductor–Metal–Insulators
| Title: | Solid-State Electrochemical Switch of Superconductor–Metal–Insulators |
| Authors: | Zhang, Xi Browse this author | | Kim, Gowoon Browse this author | | Yang, Qian Browse this author | | Wei, Jiake Browse this author | | Feng, Bin Browse this author | | Ikuhara, Yuichi Browse this author | | Ohta, Hiromichi Browse this author →KAKEN DB |
| Keywords: | YBa2Cu3O7-delta | | superconductor-metal-insulator transition | | oxygen deficiency | | electrochemical redox reaction | | yttria-stabilized zirconia |
| Issue Date: | 17-Nov-2021 |
| Publisher: | American Chemical Society |
| Journal Title: | ACS applied materials & interfaces |
| Volume: | 13 |
| Issue: | 45 |
| Start Page: | 54204 |
| End Page: | 54209 |
| Publisher DOI: | 10.1021/acsami.1c17014 |
| Abstract: | Controlling the oxygen content can manipulate the electrical conductivity of transition metal oxides (TMOs). Although the superconductor-metal-insulator transition is useful for functional devices, an electrical path must be developed to manipulate the oxygen deficiency (delta) while maintaining the solid state. YBa2Cu3O7-delta (YBCO, 0 <= delta <= 1) is a high transition temperature (T-c) TMO that can be modulated from a superconductor (T-c approximate to 92 K when delta = 0) to an insulator (delta approximate to 1). Here, we show a simple and efficient way to manipulate delta in YBCO films using a solid-state electrochemical redox treatment. Applying a negative voltage injects oxide ions to the YBCO films, increasing T-c. Employing a positive voltage suppresses the superconducting transition and modulates the electrical conductivity. The present results demonstrate that the superconductor-metal-insulator transition of YBCO is modulated electrochemically in the solid state, opening possibilities of superconducting oxide-based device applications. |
| Rights: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © 2021 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/articlesonrequest/AOR-PRAGDVAUNK2B4RR5DGMQ. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/87258 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 太田 裕道
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