1. Department of Chemistry
2. Keio University
3. Yokohama
4. Japan
5. Institute of Materials Structure Science
6. High Energy Accelerator Research Organization, and The Graduate University for Advanced Studies
7. Ibaraki 305-0801
8. Department of Physics and Photon Science
9. Gwangju Institute of Science and Technology
10. Gwangju 500-712
11. Republic of Korea