First Principle Band Calculations for Ce and Yb Compounds
| 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 |
|---|
| 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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Report
(4 results)
Research Products
(30 results)
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[Presentation] 希土類化合物Ce3Pd20Si6の近藤効果II2011
Author(s)
阿野元貴,藤田雅也,三本啓輔,赤津光洋,根本祐一,後藤輝孝,小野宏基,武田直也,酒井治, Andreas Donni,北澤英明
Organizer
日本物理学会2011年度秋季大会
Place of Presentation
富山大学五福キャンパス(富山市)
Year and Date
2011-09-24
Related Report
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[Presentation] 超音波によるCe_3Pd_20Si_6の近藤効果の研究2011
Author(s)
松尾一穂,藤田雅也,阿野元貴,荒木幸治,立川喜章,三本啓輔,赤津光洋,根本祐一,後藤輝孝,武田直也,酒井治, Andreas Donni,北澤英明
Organizer
日本物理学会第66回年次大会
Place of Presentation
新潟大学五十嵐キャンパス(新潟市)
Year and Date
2011-03-25
Related Report
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[Presentation] DMFTの現状と課題2010
Author(s)
酒井治
Organizer
日本物理学会2010年第65回年次大会
Place of Presentation
岡山大学津島キャンパス(岡山市)
Year and Date
2010-03-21
Related Report
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