Superconductivity in electron-doped layered TiNCl with variable interlayer coupling
Physical Reviews B 86 巻 2 号
024516- 頁
2012 発行
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PhysRevB_86_24516.pdf
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種類 :
全文
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タイトル ( eng ) |
Superconductivity in electron-doped layered TiNCl with variable interlayer coupling
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作成者 |
Zhang Shuai
Tanaka Masashi
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収録物名 |
Physical Reviews B
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巻 | 86 |
号 | 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.
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NDC分類 |
化学 [ 430 ]
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言語 |
英語
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資源タイプ | 学術雑誌論文 |
出版者 |
American Physical Society
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発行日 | 2012 |
権利情報 |
(c) 2012 American Physical Society
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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
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