1. Beijing National Laboratory for Condensed Matter Physics, 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. Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
4. Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China