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 100190, China.
3. Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China.
4. Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (Ministry of Education), School of Physics, Beijing Institute of Technology, Beijing 100081, China.