Microscopic Description of Strongly Electronic Correlation Accompanied by Variation of External Parameters in Ce-and 4d-electron Superconductors
| Project/Area Number |
21540370
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | University of Hyogo |
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Principal Investigator |
KOHARA Takao 兵庫県立大学, 大学院・物質理学研究科, 教授 (70107986)
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| Co-Investigator(Kenkyū-buntansha) |
UEDA Kohichi 兵庫県立大学, 大学院・物質理学研究科, 助教 (20203440)
KOYAMA Takehide 兵庫県立大学, 大学院・物質理学研究科, 助教 (30397666)
MOTOYAMA Gaku 兵庫県立大学, 大学院・物質理学研究科, 助教 (20360050)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 核磁気共鳴 / 超伝導機構 / 核四重極共鳴 / 不純物効果 / 反転対称性 / 正・負圧力 / 格子収縮 / 非BCS機構 / 反転対称 / 4d電子系超伝導 / 臨界点近傍 / 不純物添加 |
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| Research Abstract |
We tried to improve the sample-preparation of Ce-based superconductors and some interesting superconductors with 4d-electrons and to substitute some impurities for the constituent atoms in non-centrosymmetric superconductors such as CePt3Si and CeCoSi3 in the crystal structure. After that, some kinds of measurements for superconducting properties and NMR on these materials were done. As a result, some serious problems concerning quality in Ce compounds have still remained. BCS mechanisms, however, were found to be dominant in other 4d-electron systems.
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Report
(4 results)
Research Products
(96 results)
