1. Research Center for Physics, Indonesian Institutes of Sciences, Tangerang Selatan, Banten 15314, Indonesia
2. Materials Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung 40132, Indonesia
3. Division of Materials Science, Faculty of Advanced Science and Technology (Department of Applied Chemistry & Biochemistry), Kumamoto University, Kumamoto 860-8555, Japan
4. Research Center for Nanoscience and Nanotechnology, Institut Teknologi Bandung, Bandung 40132, Indonesia