1. Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People’s Republic of China
2. University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
3. Laboratory of Nano Oxides for Sustainable Energy, Material Science and Engineering (MSE), King Abdullah University of Science & Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
4. State Key Laboratory for Mesoscopic Physics, Collaborative Innovation Center of Quantum Matter, School of Physics, Peking University, Beijing 100871, People’s Republic of China
5. Department of Materials Science and Engineering, College of Engineering, Research Center for Wide Band Semiconductor, Peking University, Beijing 100871, People’s Republic of China