2009 Fiscal Year Final Research Report
Preparation and Characterization of New Exotic Superconductors Having Porous Frameworks
| Project/Area Number |
19105006
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Hiroshima University |
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Principal Investigator |
YAMANAKA Shoji Hiroshima University, 大学院・工学研究科, 教授 (90081314)
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| Co-Investigator(Kenkyū-buntansha) |
TOU Hideki 神戸大学, 大学院・理学研究科, 教授 (60295467)
EKINO Toshikazu 広島大学, 大学院・総合科学研究科, 教授 (40185103)
INUMARU Kei 広島大学, 大学院・工学研究科, 准教授 (80270891)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 超伝導 / 層状構造 / カゴ状構造 / 高圧合成 / 核磁気共鳴 / トンネル分光 / 薄膜 |
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| Research Abstract |
New exotic superconductors with layered or cage-like structures have been developed, and characterized on their physical properties. The layer structured nitride TiNCl with a two-dimensional orthogonal network was intercalated with alkali metals as well as organic bases, which was changed into superconductors with T_<CS>=8.6-16.4K. The electron-doped β-HfNCl and β-ZrNCl with double honey-comb layered structures were swelled with organic solvent molecules, and the effect of swelling (co-intercalation) on superconductivity was studied by measuring magnetic susceptibility and NMR. New silicon clathrate superconductors have been prepared under high pressure and high-temperature conditions.
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