Meng Ju , Yang iao ,MingMin Zhong , Weiguo Sun , Xinxin Xia , Yau-Yuen Yeung , Cheng Lu. New Theoreticallnsights into the Crystal-Field Splitting and Transition Mechanism for Nd 3+ Doped Y3Al5012. ACS AppliedMaterials & Interfaces 11(11)(2019)