2009 Fiscal Year Final Research Report
Study of competition between the magnetic ordering and the Kondo effect in the heavy fermion systems by the self-energy functional method
| Project/Area Number |
19740209
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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 | Shimane University |
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Principal Investigator |
MUTOU Tetsuya Shimane University, 総合理工学部, 准教授 (50312244)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 強相関電子系 / 重い電子系 / 周期的アンダーソンモデル / 磁性イオン希釈 / 自己エネルギー汎関数理論 / 動的平均場理論 / コヒーレント・ポテンシャル近似 |
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| Research Abstract |
We have tried to construct the scheme by which we can investigate characteristic properties observed in magnetic-ion diluted heavy fermion systems modeled by the periodic Anderson model. The self-energy functional theory and the dynamical mean-field theory are numerical methods by which one can treat the local quantum many-body effect correctly. It has been shown that one can treat the randomness effect of magnetic-ion diluted systems and the electron correlation effect on the same footing by using the above scheme and the coherent potential approximation.
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