Advances in Condensed Matter Physics

Review Article

Electronic Structure of Strongly Correlated Systems

Figure 29

(a) The dispersion of the V 𝑑 𝑥 𝑦 bands calculated from the extended TB model with four hopping terms 𝑡 V O 𝑅 = 1 . 7 eV,  𝑡 V O 𝐿 = 1 . 0 eV,  𝑡 O 𝐿 O 𝐿 = 0 . 6  eV, and 𝑡 V V = 0 . 0 3 2 eV (see text). (b) The same as (a) but with additional hopping terms 𝑡 O 𝑅 O 𝐿 = 0 . 8 eV, 𝑡 O 𝑅 O 𝑅 = 0 . 4 eV, and 𝑡 V O 𝑅 = 0 . 0 2 5 eV which suppress the dispersion of the upper pair of the bands [245].
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