1. National Engineering Research Center for Rare Earth Materials
2. General Research Institute for Nonferrous Metals
3. and Grirem Advanced Materials Co., Ltd.
4. Beijing 100088
5. People's Republic of China
6. Department of Physical Chemistry
7. University of Science & Technology Beijing
8. Beijing 100083
9. Department of Electrical & Electronic Engineering
10. Southern University of Science and Technology
11. Shenzhen
12. China