1. Faculty of Materials Science and Engineering Phenikaa University Hanoi 12116 Vietnam
2. Phenikaa Institute for Advanced Study Phenikaa University Hanoi 12116 Vietnam
3. Institute of Physics Vietnam Academy of Science and Technology 10 Dao Tan Hanoi 12116 Vietnam
4. School of Engineering Physics Hanoi University of Science and Technology 1 Dai Co Viet Hanoi 10000 Vietnam
5. Faculty of Physics Thai Nguyen University of Education Thai Nguyen 24000 Vietnam