Department of Physics, University of Science and Technology Beijing, Beijing 100083, China;
Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;
Department of Physics, University of Science and Technology Beijing, Beijing 100083, China;
Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;
Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;
Department of Physics, University of Science and Technology Beijing, Beijing 100083, China;
Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;
Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;
Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;
Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China;