Review Article

Electronic Structure of Strongly Correlated Systems

Figure 11

Partial DOS obtained from the LSDA+ 𝑈 calculations with 𝑈 = 5  eV and 𝐽 = 1  eV for the 𝑃 2 / 𝑐 phase of F e 3 O 4 [155]. The Fermi level shown by dotted lines. A charge-ordered insulating solution is obtained. Fe 3 𝑑 minority states corresponding to 𝐵 1 and 𝐵 4 sites are occupied ( F e 2 + ) and located just below the Fermi level, whereas 𝐵 2 and 𝐵 3 are empty ( F e 3 + ). The charge difference between 2+ and 3+ F e 𝐵 cations is found to be 0 . 2 3 𝑒 .
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