Putting DFT to the test: a first-principles study of electronic, magnetic, and optical properties of Co3O4.

作者: Vijay Singh , Monica Kosa , Koushik Majhi , Dan Thomas Major , None

DOI: 10.1021/CT500770M

关键词:

摘要: First-principles density functional theory (DFT) and a many-body Green's function method have been employed to elucidate the electronic, magnetic, and photonic properties of a spinel compound, Co3O4. Co3O4 is an antiferromagnetic semiconductor composed of cobalt ions in the Co2+ and Co3+ oxidation states. Co3O4 is believed to be a strongly correlated material, where the on-site Coulomb interaction (U) on Co d orbitals is presumably important, although this view has recently been contested. The suggested …

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