1. State
Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
2. Key
Laboratory of Advanced Technologies of Materials (Ministry of Education),
School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
3. Department
of Mathematics and Physics, Officers College of the Chinese People’s Armed Police Forces, Chengdu 610213, China