1. Department of Physics
2. Beihang University
3. Beijing 100191
4. P. R. China
5. King Abdullah University of Science and Technology (KAUST)
6. Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science
7. School of Mathematics and Physics
8. University of Science and Technology Beijing
9. Beijing 100083
10. Physical Science and Engineering Division (PSE)
11. Thuwal 23955-6900
12. Saudi Arabia