1. Henan International Joint Laboratory of MXene Materials Microstructure, College of Physics and Electronic Engineering, Nanyang Normal University 1 , Nanyang 473061, People's Republic of China
2. School of Physics and Technology, Key Laboratory of Artificial Micro/Nano structures of Ministry of Education, Wuhan University 2 , Wuhan 430072, China
3. Department of Physics, Shaanxi University of Science and Technology 3 , Xi'an 710021, China