1. Technological Design Institute of Scientific Instrument Engineering SB RAS 1 , 41b Russkaya Str., Novosibirsk 630058, Russia
2. Rzhanov Institute of Semiconductor Physics SB RAS 2 , 13 Lavrentieva Ave., Novosibirsk 630090, Russia
3. Tomsk State University 3 , 36 Lenina Ave., Tomsk 634050, Russia
4. Novosibirsk State University 4 , 2 Pirogova str., Novosibirsk 630090, Russia