1. School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing 100083, People’s Republic of China
2. School
of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China
3. Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk 660036, Russia
4. Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russia
5. Functional Electronics Laboratory, Tomsk State University, Tomsk 634050, Russia
6. Laboratory of Semiconductor and Dielectric Materials, Novosibirsk State University, Novosibirsk 630090, Russia
7. Department of Chemical and Materials Engineering, The University of Auckland, PB 92019, Auckland 1142, New Zealand