1. School of Mathematics and Physics, Key Laboratory for Ionospheric Observation and Simulation, Guangxi University for Nationalities, Nanning 530006, China
2. State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
3. School of Physics and Electronic Information, Baicheng Normal University, Baicheng 137000, China
4. Center for Advanced High-Pressure Science and Technology Research, Shanghai 201203, China