1. Technical Division, Kumamoto University, Kumamoto 860-8555, Japan
2. Graduate School of Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
3. Institute of Industrial Nanomaterials, Kumamoto University, Kumamoto 860-8555, Japan
4. Fujitsu Laboratories Ltd., Kawasaki, Kanagawa 211-8588, Japan
5. Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
6. Department of Complexity Science and Engineering, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan