Abstract
While the 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 we show that enhances the Stoner factor, while reducing the density of states. Arguably the most important correlation effects in metals, fluctuation-induced mass renormalization, and suppression of the Stoner factor, are missing from On the other hand, for moderately correlated metals may be useful. With this in mind, we derive a version of that is consistent with the Hohenberg-Kohn theorem and can be formulated as a constrained density functional theory. We illustrate all of the above on concrete examples, including the controversial case of magnetism in FeAl.
- Received 15 January 2003
DOI:https://doi.org/10.1103/PhysRevB.67.153106
©2003 American Physical Society