詳細

     
URIhttp://ousar.lib.okayama-u.ac.jp/metadata/51905
フルテキストURLPhysRevB.88.094521.pdf ( 1.2MB ) 公開日 2013-11-28
タイトルSuperconductivity in (NH3)(y)Cs0.4FeSe
著者
著者
AuthorZheng Lu
著者
AuthorIzumi Masanari
著者
AuthorSakai Yusuke
著者
AuthorEguchi Ritsuko
著者
AuthorGoto Hidenori
著者
AuthorTakabayashi Yasuhiro
著者
AuthorKambe Takashi
著者
AuthorOnji Taiki
著者
AuthorAraki Shingo
著者
AuthorKobayashi Tatsuo C.
著者
AuthorKim Jungeun
著者
AuthorFujiwara Akihiko
著者
AuthorKubozono Yoshihiro
抄録Alkali-metal-intercalated FeSe materials, (NH3)(y)M0.4FeSe (M: K, Rb, and Cs), have been synthesized using the liquid NH3 technique. (NH3)(y)Cs0.4FeSe shows a superconducting transition temperature (T-c) as high as 31.2 K, which is higher by 3.8 K than the T-c of nonammoniated Cs0.4FeSe. The T(c)s of (NH3)(y)K0.4FeSe and (NH3)(y)Rb0.4FeSe are almost the same as those of nonammoniated K0.4FeSe and Rb0.4FeSe. The T-c of (NH3)(y)Cs0.4FeSe shows a negative pressure dependence. A clear correlation between T-c and lattice constant c is found for ammoniated metal-intercalated FeSe materials, suggesting a correlation between Fermi-surface nesting and superconductivity.
発行日2012-09-30
出版物タイトルPhysical Review B
88
9
出版者The American Physical Society
ISSN1098-0121
資料タイプ学術雑誌論文
オフィシャル URLhttp://link.aps.org/doi/10.1103/PhysRevB.88.094521
本文言語英語
OAI-PMH Set岡山大学
著作権者© 2013 The American Physical Society
論文のバージョンpublisher
DOI10.1103/PhysRevB.88.094521
Web of Sience KeyUT000325172900007
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