Superconductivity in electron-doped layered TiNCl with variable interlayer coupling

Physical Reviews B 86 巻 2 号 024516- 頁 2012 発行
アクセス数 : 662
ダウンロード数 : 230

今月のアクセス数 : 2
今月のダウンロード数 : 1
ファイル情報(添付)
PhysRevB_86_24516.pdf 1.12 MB 種類 : 全文
タイトル ( eng )
Superconductivity in electron-doped layered TiNCl with variable interlayer coupling
作成者
Zhang Shuai
Tanaka Masashi
収録物名
Physical Reviews B
86
2
開始ページ 024516
抄録
Titanium nitride chloride (TiNCl), a band semiconductor with the a-form layered structure, becomes a superconductor with a transition temperature T-c approximate to 18.0 K by electron doping via alkali-metal intercalation. Upon cointercalation of various kinds of organic solvent molecules with alkali atoms, the superconducting layered crystals are swelled to different extents adjusting to the size of the molecules, and the T-c decreases linearly down to 6.5 K as a function of 1/d, where d is the interlayer separation (basal spacing) of the expanded nitride layers, implying the importance of the Coulomb interlayer coupling for superconductivity. This is in strong contrast to a previous finding that the T-c of the electron-doped ZrNCl and HfNCl with the beta-form layered structure rather increases with the increase of d upon a similar cointercalation of solvent molecules.
NDC分類
化学 [ 430 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2012
権利情報
(c) 2012 American Physical Society
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.86.024516
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.86.024516