1. A.M. Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilov str., Moscow, 119991 Russia
2. National University of Science and Technology MISIS, Moscow, 119049 Russia
3. Moscow Institute of Physics and Technology, 9 Institutsky per., Dolgoprudny, Moscow Region, 141700 Russia
4. Frantsevich Institute for Problems of Materials Science, NASU, 3 Krzhizhanovsky str., Kyiv, 03142 Ukraine
5. Institute of Experimental Physics, SAS, 47 Watsonova str., Košice, 04001 Slovakia