A spin-polarized scheme for obtaining quasi-particle energies within the density functional theory

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/139787We discuss an efficient scheme for obtaining spin-polarized quasi-particle excitation energies within the general framework of the density functional theory (DFT). Our approach is to correct the DFT eigenvalues via the electrostatic energy of a majority or minority spin electron resulting from its interaction with the associated exchange and correlation holes by using appropriate spin-resolved pair correlation functions. A version of the method for treating systems with localized orbitals, including the case of partially filled metallic bands, is considered. Illustrative results on Cu are presented.6 pages, 3 figures, to appear in J. Phys. Chem. SolidsStrongly Correlated ElectronsMaterials ScienceA spin-polarized scheme for obtaining quasi-particle energies within the density functional theorytext