1. Department of Molecular Compounds Physics, State Research Institute Centre for Physical Sciences and Technology, Saulėtekio av. 3, Vilnius, 10257, Lithuania
2. Department of Computer Modelling, Physics Faculty, Belarusian State University, Nezavisimosti av. 4, Minsk, 220030, Belarus
3. Laboratory of Nanoelectromagnetics, Institute for Nuclear Problems of Belarusian State University, Bobruiskaya str. 11, Minsk, 220006, Belarus