1. Department
of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083, China
2. State
Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
3. Materials
and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226-8503, Japan
4. Center for Crystal R&D, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
5. X-Ray
Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States