2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/134571We present one inherent shortcoming of the LDA+U method in respect of its self-interaction correction of the LDA. By reexamining the mean-field approximation on the Hubbard energy in the Hartree-Fock form, we have derived a new expression for the ``double-counting'' energy which led to a more reasonable self-interaction correction in an alternative LDA+U scheme. For the bulk Gd metal, the new scheme resulted in electronic properties more consistent with experiments in comparison to the LDA and the existing LDA+U schemes.4 pages, 3 figures and 1 table. 4 files in the uploaded zip fileStrongly Correlated ElectronsMaterials Sciencetext