In the first topic the research encompasses several topical fields as e.g. surface magnetism, magnetic exchange coupling and spin-dependent transport in multilayered systems, magnetic properties of amorphous materials, solute segregation in bulk disordered alloys and at grain boundaries and computer simulations of atomic configurations of defects. Quantum-mechanical and quantum-statistical methods are applied to these problems, and most studies are performed from the first principles.

The second of the mentioned topics is based on broad experimental macroscopic and micro- scopic investigations of crystal structure in relation to electrical and magnetic properties, both integral and microscopic. Predominate amount of results has been obtained from applications of Mossbauer spectroscopy. Crystalline, microcrystalline, nanocrystalline and amorphous materials have been investigated. The main idea is to obtain a deeper understanding of relations between changes in crystalline structure in dependence on heat and mechanical treatment, and electrical and magnetic properties.