| Project/Area Number |
20740200
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Kochi University |
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Principal Investigator |
KATO Harukazu Kochi University, 教育研究部自然科学系, 准教授 (60363272)
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| Research Collaborator |
MATSUMURA Masahiro 高知大学, 教育研究部自然科学系, 教授
NISHIOKA Takashi 高知大学, 教育研究部自然科学系, 教授
KAMBE Shinsaku 日本原子力研究開発機構, 研究員
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 強相関系 / Aサイト秩序ペロブスカイト酸化物 / 核磁気共鳴 / 電荷移動 / 物性実験 / 低温実験 / ペロブスカイト酸化物 / 強相関電子系 |
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| Research Abstract |
I have carried out nuclear magnetic resonance (NMR) studies of an A-site-ordered perovskite system A'Cu_3Ru_4O_<12>(A'=Ca,Sr,La and so on). The effective density of states in CaCu_3Ru4O_<12> and SrCu_3Ru_4O_<12> changes in its magnitude across TX～180K (Ca) and 200K (Sr). This is related to possible charge transfer between Cu and Ru ions, which might owe to electronic correlation of the Cu-3d and Ru-4d electrons.
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