1. Research Institute of Physics, Southern Federal University, Rostov-on-Don 344002, Russia
2. Tananaev Institute of Chemistry—Subdivision of the Federal Research Centre, Kola Science Centre of the Russian Academy of Sciences, Apatity 184209, Russia
3. Institute of High Technology and Piezo Technic, Southern Federal University, Rostov-on-Don 344002, Russia
4. Faculty of Physics, Southern Federal University, Rostov-on-Don 344002, Russia