| Project/Area Number |
21540372
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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 | National Institute for Materials Science |
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Principal Investigator |
YANAGIMACHI Osamu 独立行政法人物質・材料研究機構, 量子ビームユニット, NIMS特別研究員 (60005957)
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| Co-Investigator(Renkei-kenkyūsha) |
KITAZAWA Hideaki 独立行政法人物質・材料研究機構, 量子ビームユニット, ユニット長 (00195257)
SUZUKI Hiroyuki 独立行政法人物質・材料研究機構, 量子ビームユニット, 主幹研究員 (60354370)
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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 |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 強相関系 / バンド計算 / 物性理論 / 磁性 / 強相関 / 強相関電子 |
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| Research Abstract |
The first principle band calculation method for 4f electron systems is developed based on dynamical mean field theory. The calculations take into account the crystal-field splitting, the spin-orbit interaction and the exchange process of f^1→f^0, f^2 virtual excitations. Applications to Ce compounds with the AuCu_3-type structure(CePd_3, CeRh_3, CeIn_3, CeSn_3) are carried out, and calculation know-how's are accumulated. Kondo temperatures of these compounds are reasonable reproduced. The Fermi surfaces are obtained to be almost identical to those of bands calculated by the local density approximation except for CeIn_3.For CeIn_3, experimental results of de Haas-van Alphen effect are reproduced including the results of cyclotron masses.
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