1. Division of Physics School of Science Walailak University Thai Buri, Tha Sala Nakhon Si Thammarat 80160 Thailand
2. Functional Materials and Nanotechnology Center of Excellence Walailak University Nakhon Si Thammarat 80160 Thailand
3. The Institute for the Promotion of Teaching Science and Technology (IPST) 924 Sukhumvit Road, Phra Khanong Klong Toei Bangkok 10110 Thailand
4. Thailand Center of Excellence in Physics (ThEP) Ministry of Higher Education, Science, Research and Innovation 328 Si Ayutthaya Road Bangkok 10400 Thailand
5. Department of Physics Faculty of Science Kasetsart University Bangkok 10900 Thailand