1. Synchrotron Light Research Institute (Public Organization), 111 University Avenue, Muang District, Nakhon Ratchasima 30000, Thailand
2. Thailand Center of Excellence in Physics, CHE, Bangkok 10400, Thailand
3. Department of Physics, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
4. Department of Physics, Srinakharinwirot University, Wattana, Bangkok 10110, Thailand
5. School of Physics, Suranaree University of Technology, 111 University Avenue, Muang District, Nakhon Ratchasima 30000, Thailand
6. Department of Applied Physics, Tokyo University of Science, Shinjuku-ku, Tokyo 162-8601, Japan
7. Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan