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Title: | <研究ノート>アンチペロブスカイト酸化物の新超伝導体Sr(3-x)SnO |
Other Titles: | <Research Report>New superconductor: the antiperovskite oxide Sr(3-x)SnO |
Authors: | 米澤, 進吾 https://orcid.org/0000-0002-7476-3604 (unconfirmed) |
Author's alias: | Yonezawa, Shingo |
Issue Date: | Jun-2017 |
Publisher: | 京都大学環境安全保健機構 物性科学センター |
Journal title: | 京都大学物性科学センター誌 : LTMセンター誌 |
Volume: | 30 |
Start page: | 10 |
End page: | 17 |
Abstract: | The antiperovskite (inverse perovskite) oxides are charge-inverted analogues of the ordinary perovskite oxides. In this article, we explain our recent discovery of superconductivity in Sr(3-x)SnO, the first superconductor among the antiperovskite oxides. The pristine compound without Sr deficiency is a candidate of the Dirac semimetal. We found that the Sr-deficient compound exhibits superconductivity with the critical temperature of around 5 K, due to doped hole carriers. Theoretically, it is proposed that the strong mixing of d and p orbitals in the valence band can lead to topological superconductivity in Sr(3-x)SnO. |
DOI: | 10.14989/226343 |
URI: | http://hdl.handle.net/2433/226343 |
Related Link: | http://www.ltm.kyoto-u.ac.jp/centershi/ |
Appears in Collections: | 第30号 |
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