1. Ceramics and Biomaterials Research Group, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
2. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
3. Department of Physics, Hanoi National University of Education, 136 Xuan Thuy Street, Cau Giay District, Hanoi, Vietnam
4. International Training Institute for Materials Science, Hanoi University of Science and Technology, No. 1, Dai Co Viet Street, Hai Ba Trung Dist, Hanoi, Vietnam