1. Department of Physics, Harbin Institute of Technology, Harbin 150001, PR China
2. Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, PR China
3. Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, PR China
4. Centre for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150001, PR China
5. Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, PR China
6. School of Advanced Study, Taizhou University, Taizhou, 317000, China