1. College of Physics Science and Technology, Yangzhou University, Jiangsu 225009, China
2. China Rare Earth Group Research Institute, Ganzhou, 341000, China
3. Key Laboratory of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China
4. Advanced Copper Industry College, Jiangxi University of Science and Technology, Yingtan 335000, China