1. August Chełkowski Institute of Physics
2. University of Silesia in Katowice
3. 41-500 Chorzów
4. Poland
5. Department of Experimental Physics
6. Wrocław University of Science and Technology
7. Wrocław
8. Faculty of Physics
9. Vilnius University
10. LT-10222 Vilnius
11. Lithuania
12. Institute of Chemistry
13. LT-10257 Vilnius
14. Center for Physical Sciences and Technology (FTMC)
15. Institute of Low Temperature and Structure Research
16. Polish Academy of Sciences
17. 50-950 Wrocław 2
18. Institute of Materials Engineering
19. Department of Physics