1. Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam
2. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
3. Duy Tan University, Da Nang, Viet Nam
4. Institute of Low Temperatures and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
5. Science and Technology Advances, Van Lang University, Ho Chi Minh city, Binh Thach, Vietnam
6. Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 17035, Republic of Korea
7. Department of Physics, University of South Florida, Tampa, FL 33620, USA