1. Natural Science Research Center, Harbin Institute of Technology, Harbin 150080, China
2. Lujan Neutron Scattering Center, Los Alamos National Laboratory, MS-H805, Los Alamos, New Mexico 87545, United States
3. HPSynC, Carnegie Institution of Washington, Argonne, Illinois 60439, United States
4. High Pressure Science and Engineering Center, University of Nevada, Las Vegas, Nevada 89154, United States