1. School of Materials Science and Engineering, Jingdezhen Ceramic University 1 , Jingdezhen 333001, China
2. National Engineering Research Center for Domestic & Building Ceramics 2 , Jingdezhen 333001, China
3. Department of Physics, Huaiyin Institute of Technology 3 , Huaian 223003, China
4. School of International Studies, Jingdezhen Ceramic University 4 , Jingdezhen 333001, China
5. School of Physics, State Key Laboratory for Crystal Materials, Shandong University 5 , Jinan 250100, China
6. National Laboratory of Solid State Microstructures, Nanjing University 6 , Nanjing 210093, China