1. State Key Laboratory of Physical Chemistry of Solid Surface Fujian Provincial Key Laboratory of Materials Genome and College of Materials Xiamen University Simingnan‐Road 422 Xiamen 361005 China
2. Baotou Research Institute of Rare Earths Huanghe‐Avenue 36 Baotou 014060 China
3. iRay Technology Company Limited Jinhai‐Road 1000 Shanghai 201206 China
4. iRay Technology (Taicang) Limited Xinggang‐Road 33 Taicang 215434 China