Many-body effects in the electronic structure of solids from first principles

Goal of this project is to continue development of selected methods for including many-body effects into ab-initio calculations of electron structure of solids and to apply them for investigating particular phenomena and features, especially in the area of magnetism and x-ray spectroscopy. We will focus on the LDA+DMFT method, on linear response theory within hte TDDFT and on the multichannel multiplescattering formalism. We intend to incorporate these methods into the SPRKKR package, which is based on the KKR-Green function formalism and is fully relativistic. A uniform implementation of the mentioned methods will allow to check better their benefits and limitations. A significant contribution will be interconnecting LDA+DMFT and TDDFT method, which will enable to calculate x-ray spectra while accounting for the interaction between the core hole and the excited electron for correlated systems as well. Owing to the relativistic formalism we can focus also on the x-ray magnetic circular dichroism spectra, XMCD).