Accurate evaluation of magnetic coupling between atoms with numerous open-shells : an ab-initio method
Résumé
We propose a new ab initio method designed for the accurate calculation of effective exchange integrals between atoms with numerous open-shells. This method applies to ferromagnetic as well as antiferromagnetic exchange, direct or ligand-mediated exchange. Test calculations on high spin transition metal oxides such as KNiF3, Ba2CoS3 or YMnO3 exhibit a very good accuracy compared either to the best ab initio calculations ---when those are feasible--- and with experimental evaluations.
Origine : Fichiers produits par l'(les) auteur(s)
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