1. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People’s Republic of China
2. School of Physics and Electronics, Shandong Normal University, Jinan, Shandong 250014, People’s Republic of China
3. School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People’s Republic of China