1. Department of Physics, Faculty of Science, Kasetsart University, Chatuchak, Bangkok10900, Thailand
2. Department of Materials Science and Engineering, University of Delaware, Newark, Delaware19716, United States
3. Electroceramics Research Laboratory, College of Materials Innovation and Technology, King Mongkut’s Institute of Technology Ladkrabang, Ladkrabang, Bangkok10520, Thailand
4. School of Physics, Institute of Science, and Center of Excellence in Advanced Functional Materials, Suranaree University of Technology, Muang, Nakhon Ratchasima30000, Thailand