1. Hebei Key Lab of Optic-electronic Information and Materials, The College of Physics Science and Technology, Hebei University, Baoding 071002, China.
2. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China.
3. Shanghai EBIT Lab, Institute of Modern Physics, Department of Nuclear Science and Technology, Fudan University, Shanghai 200433, China.
4. College of Science, National University of Defense Technology, Changsha, Hunan 410073, China.