1. Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR 999708, P. R. China
2. 2027 Laboratory, Tianfu Xinglong Lake Laboratory, Chengdu, Sichuan 610000, P. R. China
3. Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao SAR 999078, P. R. China