1. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People’s Republic of China
2. Laboratory of High Pressure Physics and Material Science, School of Physics and Physical Engineering, Qufu Normal University, Qufu 273100, People’s Republic of China
3. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China