1. Rzhanov Institute of Semiconductor Physics SB RAS, 13 Lavrentiev ave., 630090 Novosibirsk, Russia
2. Novosibirsk State University, 2 Pirogov str., 630090 Novosibirsk, Russia
3. Sobolev Institute of Geology and Mineralogy SB RAS, 3 Koptyug ave., 630090 Novosibirsk, Russia