1. High Pressure Science
and Engineering Center, University of Nevada, Las Vegas, Nevada 89154, United States
2. High Pressure Synergetic Consortium, Geophysical Laboratory, Carnegie Institution of Washington, Argonne, Illinois 60439, United States
3. School of
Physics, Astronomy, and Computational Sciences, George Mason University, Fairfax, Virginia 22030, United States
4. CAS Key Laboratory of Materials for Energy
Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences (CAS), Shanghai 200050, People’s Republic of China
5. Electron Microscopy Center, Argonne National Laboratory, Argonne, Illinois 60439, United States