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The Generalized Gutzwiller Method for n ≥ 2 Correlated Bands: First Order Metal-Insulator Transitions

By J. Bünemann and W. Weber


We have generalized the Gutzwiller method to the cases of n ≥ 2 correlated bands and report studies on a degenerate two-band model with Hund’s rule type on-site interactions. At half band filling the metal-insulator transitions are usually of first order

Topics: Typeset using REVTEX
Year: 2008
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