1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
3. Songshan Lake Mat Lab, Dongguan 523808, Guangdong China
4. School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150006, China
5. Department of Applied Chemistry, Harbin Institute of Technology at Weihai, Weihai 264209, China
6. CITIC Metal, Ningbo 315812, Zhejiang China
7. Companhia Brasileira de Metalurgia e Mineração, 04538-133, São Paulo, Brazil