1. School of Physics, Northwest University, Xi'an 710127, China
2. Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi'an 710127, China
3. Department of Physics, Beijing Normal University, Beijing 100875, China
4. Key Lab of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), Beijing Key Lab of Nanophotonics & Ultrafine Optoelectronic Systems, and School of Physics, Beijing Institute of Technology, Beijing 100081, China