1. Prokhorov General Physics Institute of the Russian Academy of Sciences38 Vavilova strMoscow, 119991Russian Federation
2. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)31 Kashirskoye shosseMoscow, 115409Russian Federation
3. V. A. Kotel'nikov Institute of Radio Engineering and Electronics of theRussian Academy of Sciencespl. Vvedenskogo 1FryazinoMoscow Region141190Russian Federation
4. Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics”of the Russian Academy of SciencesMoscow, 119333Russian Federation
5. National Research Centre “Kurchatov Institute”Moscow123182Russian Federation
6. University of Eastern FinlandDepartment of Physics and MathematicsJoensuu80101Finland