1. Institute of Materials Research, Slovak Academy of Sciences, Košice, Slovakia
2. Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovakia
3. CEMEA – Center of Excellence for Advanced Materials Applications, Slovak Academy of Sciences, Bratislava, Slovakia
4. Institute of Inorganic Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia
5. Bánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, Budapest, Hungary