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
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Condensed matter physics II
|
|---|
| Research Institution | Shimane University |
|---|
Principal Investigator |
MUTOU Tetsuya Shimane University, 総合理工学部, 准教授 (50312244)
|
|---|
| Project Period (FY) |
2007 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥3,680,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥480,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,600,000 (Direct Cost: ¥1,600,000)
|
|---|
| 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 / 磁性イオン希釈効果 / 金属強磁性 / ハバードモデル / 修正逐次摂動理論 / 周期的Andersonモデル / Hubbardモデル |
|---|
| 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.
|
Report
(4 results)
Research Products
(15 results)
