1. School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, China
2. School of Physics and Technology, Wuhan University, Wuhan 430072, China
3. School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
4. Department of Chemie, Ludwig-Maximilians-Universität München, München 81377, Germany
5. Institut für Physik and IRIS Adlershof, Humboldt-Universität zu Berlin, Berlin 12489, Germany
6. School of Science, Xi’an Polytechnic University, Xi’an 710048, China
7. Theoretical Materials Physics, Q-MAT, CESAM, University of Liège, B-4000 Liège, Belgium