著者 |
Nagira, Ei
Interdisciplinary Faculty of Science and Engineering, Shimane University, Matsue 690-8504,Japan
Kusunose, Hiroshi
Department of Physics, Ehime University, Matsuyama 790-8577, Japan
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内容記述(抄録等) | A simple effective scheme to improve the self energy obtained by the dynamical mean field theory is proposed, in which a feedback of magnetic fluctuations is taken into account. We demonstrate effectiveness of the scheme for the two-dimensional periodic Anderson model by investigating the effect of the magnetic fluctuation in the formation of heavy quasiparticles. It is found that the spectral intensity near the Fermi level is strongly suppressed by the antiferromagnetic fluctuation slightly above the magnetic instability.
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掲載誌情報 |
Journal of Physics: Conference Series
391
, 012160_1
- 012160_4
, 2012-9-3
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出版者 | IOP Publishing
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