1. Institute of Physics of Materials, Czech Academy of Sciences, Zizkova 513/22, 61600 Brno, Czech Republic
2. ENET Centre─Research Centre of Energy Units for Utilization of Non Traditional Energy Sources, VSB-TUO, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
3. CEITEC-Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic, EU
4. Department of Functional and Constructional Materials Technology, Vladimir State University Named after Alexander and Nikolay Stoletovs, 600000 Vladimir, Russia