1. School of Physics Zhengzhou University Zhengzhou 450001 China
2. College of Science Henan University of Engineering Zhengzhou 451191 China
3. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy of Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan 430071 China
4. Research Center for Quantum Precision Measurement, Institute of Industry Technology Guangzhou and Chinese Academy of Sciences Guangzhou 511458 China