1. Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
2. School of Physical Sciences, Great Bay University, Dongguan 523429, China
3. School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China
4. School of Electronics and Information Engineering, Tiangong University, Tianjin 300387, China
5. Core Research Facilities, Southern University of Science and Technology, Shenzhen 518055, China
6. School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China