2011 Fiscal Year Final Research Report
Preparation of New High-Tc Superconducting Multinary Oxynitrides by Ammonolysis through Citrate Route
| Project/Area Number |
21245047
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Hokkaido University |
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Principal Investigator |
KIKKAWA Shinchi 北海道大学, 大学院・工学研究院, 教授 (10127219)
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| Co-Investigator(Kenkyū-buntansha) |
MOTOHASHI Terkuki 北海道大学, 大学院・工学研究院, 准教授 (00323840)
MASUBUCHI Yuji 北海道大学, 大学院・工学研究院, 助教 (80466440)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 金属酸窒化物 / 超伝導体 / 欠陥構造 / 層状構造 / ゲル化窒化 / インタカレーション / 中性子回折 |
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| Research Abstract |
Niobium nitride in rock salt type structure had been known as a superconductor with Tc=17K. New superconductors were obtained in niobium oxynitrides or nitride in ammonolyses either of homogeneously mixed amorphous oxides or ternary oxide as follows ; (1)rock salt type (Nb_<0.95>Mg_<0.05>)(N_<0.92>O_<0.08>), (Nb_<0.89>Al_<0.11>)(N_<0.84>O_<0.16>),(Nb_<0.87>Si_<0.09>□_<0.04>)(N_<0.87>O_<0.13>),(2)LiTa_3N_4 type (Li_<0.88>□_<0.12>)Nb_3(N_<0.87>O_<0.13>)_4,(3)platy crystals of rock salt type (Nb_<0.5>Ti_<0.5>)N
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Research Products
(23 results)
