1. Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.
2. Department of Physics, Hangzhou Normal University, Hangzhou 311121, China.
3. University of Chinese Academy of Sciences, Beijing 100049, China.
4. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, Liaoning, China.
5. School of Materials Science and Engineering, University of Science and Technology of China, Hefei, China.