1. Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod 603950, Russia
2. NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
3. South Ural State University, Lenin pr. 76, Chelyabinsk 454080, Russia
4. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye shosse 31, Moscow 115409, Russia