1. International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
2. Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
3. International Center for Young Scientists, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
4. Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
5. School of Material Science, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa 923-1211, Japan
6. Hitachi Cambridge Laboratory, Hitachi Europe Ltd., J. J. Thomson Avenue, Cambridge CB30HE, United Kingdom
7. Faculty of Engineering, Gunma University, Kiryu, Gunma 376-8515, Japan