7 SCIENTIFIC HIGHLIGHT OF THE MONTH : ” Recent Developments in KKR Theory ” Recent Developments in KKR Theory

In contrast to its original version that deals with the band structure of periodically ordered solids more or less like any other all-electron band structure method, the modern version of the KKR (Korringa-Kohn-Rostoker) method represents the electronic structure of a system directly and efficiently in terms of its single-particle Green’s function (GF). This appealing feature and the wide applicability connected with it, is achieved by the use of multiple scattering theory (MST) for the electronic structure calculations. The basic ideas behind the resulting KKR-GF-method are outlined and the various techniques to deal with the underlying multiple scattering problem are reviewed. The second part of the contribution presents various applications of the KKR-GF-method meant to demonstrate its great flexibility and wide applicability. These should also reflect the many developments of the KKR-GF-method or methods based on it, respectively, that were made during the last years by many work groups.