1. Department of Engineering Mechanics, Northwestern Polytechnical University, Xi’an 710072, China
2. Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
3. School of Science, Xi’an University of Architecture and Technology, Xi’an 710055, China
4. Institute of Theoretical Chemistry, Ulm University, 89081 Ulm, Germany
5. School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710119, China
6. Department of Physics, RPTU Kaiserslautern-Landau, P.O. Box 3049, 67653 Kaiserslautern, Germany