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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  KAKEN_name
Author's alias: Yonezawa, Shingo
Issue Date: Jun-2017
Publisher: 京都大学物性科学センター
Journal title: 京都大学物性科学センター : 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
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