1. Institute of Electrophysics UrB RAS, 106 Amundsena St., Ekaterinburg 620012, Russia
2. Ural Federal University, 19 Mira St., Ekaterinburg 620002, Russia
3. Institute of High Current Electronics SD RAS, 2/3 Akademichesky Avenue, 634055 Tomsk, Russia
4. National Research Tomsk Polytechnic University, 30 Lenin Avenue, 634050 Tomsk, Russia