1. College of Rare Earths Jiangxi University of Science and Technology Ganzhou China
2. Department of Physics University of Lahore Lahore Pakistan
3. Jiangxi Province Key Laboratory of Power Battery and Materials, Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and Technology Ganzhou China
4. Metallurgical Division of Materials Chemistry Jiangxi University of Science and Technology Ganzhou China