1. School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710119, China
2. School of Physics, Northwest University, Xi’an 710069, China
3. School of Mechanical and Material Engineering, Xi’an University, Xi’an 710065, China
4. School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
5. Vacuum Interconnected Nanotech Workstation (Nano-X), Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS), Suzhou 215123, China