1. Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2. School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
3. Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
4. Beijing Key Laboratory for Advanced Functional Materials and Structure Research, Beijing 100190, China
5. School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, China