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- W2073811127 abstract "Strongly correlated 3d-transition-metal oxides show a variety of interesting magnetic and electronic properties which make them potential candidates in the new field of spintronics. Due to strong on-site Coulomb-repulsions of 3d-electrons, density functional theory in local spin-density approximation (DFT–LSD) fails in giving an adequate electronic structure of these materials. Self-interacton corrected (SIC)–DFT–LSD strongly improves the description of such systems. Here we study the magnetic interactions in NiO and the NiO (100) surface in the framework of SIC–LSD. We extract exchange interaction constants of these systems by mapping total energies of different magnetic configurations onto a Heisenberg-Hamiltonian. Further we have investigated the effect of creating cation-vacancies in such systems. We find half-metallic behaviour for Mn0.97O and Ni0.97O. In particular, for NiO we find a half-metallic antiferromagnet which might have potential application in spintronics." @default.
- W2073811127 created "2016-06-24" @default.
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- W2073811127 date "2004-01-01" @default.
- W2073811127 modified "2023-09-23" @default.
- W2073811127 title "Electronic structure and magnetic interactions in strongly correlated transition-metal oxides" @default.
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- W2073811127 doi "https://doi.org/10.1080/01411590310001623201" @default.
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