Review Article

Electronic Structure of Strongly Correlated Systems

Figure 34

The optical conductivity 𝜎 𝑥 𝑥 (c) and 𝜎 𝑦 𝑦 (d) of 𝛼 - N a V 2 O 5 determined by LDA and LDA+ 𝑈 band structure calculations with 𝑈 e = 0 (dotted line), 2 (solid line), and 3 eV (dashed line) compared with those derived from the experiment ((a) and (b)). The theoretical curves are broadened with a Lorentzian of 0.2 eV width. The vertical dotted lines illustrate the correspondence of the peak positions.
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