Review Article

Electronic Structure of Strongly Correlated Systems

Figure 10

Total DOS and band structure of the 𝑃 2 / 𝑐 phase of F e 3 O 4 self-consistently obtained by the LSDA+ 𝑈 with 𝑈 = 5  eV and 𝐽 = 1  eV [155]. The Fermi level is denoted by the horizontal line and is taken as the zero of energy. A bandgap of 0.18 eV opens between M and Γ symmetry points. The energy bands predominantly originating from the F e 𝐵 3 + 𝑡 2 𝑔 and 𝑒 𝑔 states are shown in dark gray (red) and light gray (green) colors, respectively, whereas the gray (blue) color corresponds to F e 𝐵 2 + 𝑡 2 𝑔 bands. For the majority spin an energy gap of ~2 eV opens between F e 𝐵 2 + 𝑒 𝑔 and F e 𝐴 bands shown in dark gray (red) and light gray (green) colors, respectively. The corresponding contributions to the total DOS are shown (a).
298928.fig.0010a
(a)
298928.fig.0010b
(b)