1. State Key Laboratory of Superhard Materials, Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, People's Republic of China
2. Tianjin Key Laboratory of Advanced Electrical Engineering and Energy Technology, School of Electrical Engineering and Automation, Tianjin Polytechnic University, Tianjin 300387, People's Republic of China
3. Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas 79409, USA
4. Center for High Pressure Science and Technology Advanced Research, Changchun 130012, People's Republic of China