1. Department of Physics, Ho Chi Minh City University of Technology and Education, 700000 Hochiminh, Vietnam
2. Department of Physical Chemistry, Plovdiv University “Paisii Hilendarski”, 24 Tzar Asen Str., 4000 Plovdiv, Bulgaria
3. Faculty of Engineering Physics and Nanotechnology, VNU-University of Engineering and Technology, 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam
4. Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 449-791, South Korea
5. Leibniz IFW Dresden, Institute for Complex Materials, D-01069, Dresden, Germany
6. Institute of Low Temperature and Structure Research, PAS, Okólna 2, 50-422 Wroclaw, Poland
7. Phenikaa University Nano Institute (PHENA), Phenikaa University, Hanoi 12116, Vietnam
8. Faculty of Environmental and Natural Sciences, Duy Tan University, 550000 Danang, Vietnam
9. Laboratory Center, Duy Tan University, 550000 Danang, Vietnam
10. Institute of Research and Development, Duy Tan University, 550000 Danang, Vietnam