1. School of Physics and Center of Excellence on Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
2. A.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania 19104, USA
3. Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, USA
4. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
5. State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
6. Synchrotron Light Research Institute, Nakhon Ratchasima 30000, Thailand
7. The Institute for the Promotion of Teaching Science and Technology, Bangkok 10110, Thailand
8. Thailand Center of Excellence in Physics (ThEP), MHESI, Bangkok 10400, Thailand