1. International Center for Young Scientists (ICYS) National Institute for Materials Science (NIMS) Tsukuba 305‐0044 Japan
2. Nanomaterials Research Institute National Institute of Advanced Industrial Science and Technology AIST Central 5 Tsukuba 305‐8564 Japan
3. Center for Green Research on Energy and Environmental Materials (GREEN) National Institute for Materials Science (NIMS) Tsukuba 305‐0044 Japan
4. International Center for Materials Nanoarchitectonics (WPI‐MANA) National Institute for Materials Science (NIMS) Tsukuba 305‐0044 Japan
5. Department of Physics Tokyo Metropolitan University Hachioji 192‐0397 Japan
6. Institute of Materials Research and Engineering Agency for Science Technology and Research Singapore 138634 Singapore
7. Institute of Chemical Biology and Nanomedicine (ICBN) College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P. R. China
8. Research Center for Functional Materials National Institute for Materials Science (NIMS) Tsukuba 305‐0044 Japan