Affiliation: | 1. National Engineering Research Center for Rare Earth Materials, GRINM Group Co., Ltd., Beijing 100088, China;2. GRIREM Advanced Materials Co., Ltd., Beijing 100088, China;3. General Research Institute for Nonferrous Metals, Beijing 100088, China;4. Rare Earth Functional Materials (Xiong''an) Innovation Center Co., Ltd., Baoding 071700, China |