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Correlated metals and the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">LDA</mml:mi><mml:mo>+</mml:mo><mml:mi>U</mml:mi></mml:math>method
While the $\mathrm{LDA}+U$ method is well established for strongly correlated materials with well localized orbitals, its application to weakly correlated metals is questionable. By extending the LDA Stoner approach onto $\mathrm{LDA}+U,$ we show that $\mathrm{LDA}+U$ enhances the Stoner factor, while reducing the density of states. Arguably the most important correlation …