1. Anhui Province Key Laboratory of Low-Energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of Sciences, Hefei, Anhui 230031, China
2. Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, Anhui 230026, China
3. Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang, Sichuan 621908, China