1. Department of Physics, Cracow University of Technology, 1, Podchorazych Str., 30-084 Cracow, Poland
2. Faculty of Materials Engineering, Cracow University of Technology, Al. Jana Pawla II 37, 31-864 Cracow, Poland
3. DIAEE Department of Astronautical, Electrical and Energy Engineering, “Sapienza” University of Rome, Via Eudossiana 18, 00184 Rome, Italy
4. Faculty of Chemical Engineering and Technology, Cracow University of Technology, 24, Warszawska Str., 31-155 Cracow, Poland
5. Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland
6. Institute of Physics of the Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland