1. School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
2. Department of Physics, Applied Physics & Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
3. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
4. School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
5. Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China