Affiliation: | 1.Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” Russian Academy of Sciences, 119333, Moscow, Russia ;2.National Research Centre “Kurchatov Institute”, 123182, Moscow, Russia ;3.Mokerov Institute of Ultra High Frequency Semiconductor Electronics, Russian Academy of Sciences, 117105, Moscow, Russia ;4.St. Petersburg State University, 199034, St. Petersburg, Russia ; |