1. Phenikaa University Nano Institute (PHENA), Phenikaa University, Hanoi 12116, Vietnam
2. Institute of Physics at Ho Chi Minh City, Vietnam Academy of Science and Technology (VAST), Ho Chi Minh 70000, Vietnam
3. Department of Physics, Tien Giang University, My Tho city 84100, Tien Giang Province, Vietnam
4. International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology, Hanoi 10000, Vietnam
5. Graduate University of Science and Technology (GUST) and Institute for Materials Science (IMS), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi 10000, Vietnam
6. Faculty of Materials Science and Engineering, Phenikaa University, Hanoi 12116, Vietnam