Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;
Key Laboratory of Electronic Materials and Devices of Tianjin, School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China;
Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;
School of Physics and Electronics, Hunan University, Changsha 410082, China;
School of Public Management, Beihang University, Beijing 100191, China;