* Corresponding authors

^a The Key Laboratory for Magnetism and Magnetic Materials of MOE, Department of Physics, School of Physical Science and Technology, Lanzhou University, Lanzhou, China
E-mail: qijing@lzu.edu.cn

^b School of Physics and Engineering, Sun Yat-sen University, Guangzhou, China

^c Quantum Structures Laboratory, Department of Electrical and Computer Engineering, University of California, Riverside, California, USA
E-mail: jianlin@ece.ucr.edu