Electronic excitations in NiO
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Manabu Takahashi; Jun-Ichi Igarashi
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Article
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2010
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John Wiley and Sons
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English
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A many-body theory for a multi-orbital tight-binding model is developed by taking account of local three-body correlations. The theory is applied to the antiferromagnetic NiO. The multiplet structures of hree-particle states are fully taken into account. It is shown that the self-energy correction l