Scientific research in Department of Applied Physics
The scientific research conducted by the employees of the Department of Applied Physics mainly concerns the issue of the solid-state physics and materials science. The research combines the scientific purposes as well as practical aspects. The main interest of the scientific research are the materials with ferroelectric and antiferroelectric properties of perovskite and ilmenite structure, including; NaNbO3, LiNbO3, AgNbO3, BaTiO3, PbTiO3, PbZrO3, PbHfO3, LNN, NBT, KBT, PMN, PSN, PLuN, PZT, PLZT, PZS, BZT, BST, BGT, BHT, BFO.
The range of the conducted research:
elaborating development technology of new ferroelectric materials in monocristalline and ceramic state,
analysis of material microstructure using Scanning Electron Microscope (SEM), and the qualitative and quantitative chemical analysis using x-ray micro-analyzer (EDS, EPMA),
analysis of dielectric properties (electric permittivity, dielectric losses, electric polarisation, electric conduction of direct and alternating current)
analysis of pyroelectric properties,
the effect of axis pressure (1÷ 1000bar) on dielectric properties,
analysis of electromechanical properties (electrostriction, piezoelectric effect)
defining the effect of isovalent and heterovalent substitutions in ferroelectric materials of perovskite structure on the character of phase change
analysis of the selected ferroelectric crystals of perovskite structure using ab initio method of calculation