1. Department of Physics, Xiamen University, Xiamen 361005, China
2. Jiujiang Research Institute of Xiamen University, Jiujiang 332000, China
3. Shenzhen Research Institute of Xiamen University, Shenzhen 518057, China
4. School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, China
5. School of Science, Jiangnan University, Wuxi 214122, China