[1] SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia
[2] SB RAS, Baikal Inst Nat Management, Lab Oxide Syst, Ulan Ude 670047, Russia
[3] SB RAS, Inst Automat & Electrometry, Lab Condensed Matter Spect, Novosibirsk 630090, Russia
[4] SB RAS, Inst Semicond Phys, Lab Nanodiagnost & Nanolithog, Novosibirsk 630090, Russia
[5] SB RAS, Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia