1) Crystal structure investigation of inorganic compounds – minerals and synthetic phases, structural isomorphism 2) X-ray single crystal diffraction experiment, including precise data collection 3) Crystal chemical description and systematic of structures, OD theory, polytypism 4) Charge density in minerals, including containing 3d-elements 5) Phase transition, structure-properties relationship for nonlinear optic, ferroelectric, piezoelectric crystals 6) Search of new structures in borates, phosphates, silicates etc. and structure-properties relation |