1. Department
of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
2. Materials
Research Institute, Pennsylvania State University, University Park, Pennsylvania 16802, United States
3. Geophysical
Laboratory, Carnegie Institution of Washington, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
4. Department
of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, United States
5. Department
of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
6. Department
of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
7. Neutron
Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
8. European Spallation Source, ESS ERIC, SE-22100 Lund, Sweden
9. High
Pressure Collaborative Access Team, Geophysical Laboratory, Carnegie
Institution of Washington, Argonne National Laboratory, Argonne, Illinois 60439, United States