1. Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai 201203, People's Republic of China
2. College of Material and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China
3. Key Laboratory of High-Temperature and High-Pressure Study of the Earth's Interion, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, People's Republic of China
4. Hawaii Institute of Geophysics & Planetology, University of Hawaii Manoa, Honolulu, Hawaii 96822, USA
5. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China