1. Shenzhen Key Laboratory of Advanced Materials Department of Materials Science and Engineering Harbin Institute of Technology (Shenzhen) Shenzhen 518055 P. R. China
2. School of Materials Science and Engineering Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin 300072 P. R. China
3. Department of Physics City University of Hong Kong Hong Kong 999077 P. R. China
4. Argonne National Laboratory X‐Ray Science Division Argonne IL 60439 USA
5. Department of Materials Science and Engineering Northwestern University Argonne IL 0201 USA
6. Shenzhen Research Institute City University of Hong Kong Shenzhen 518057 P. R. China