| Affiliation: | 1. Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226‐8503 (Japan);2. Current address: Department of Physics, Nagoya University, Furo‐cho, Chikusa, Nagoya 464‐8602 (Japan);3. Nanostructures Research Laboratory (Japan) Fine Ceramics Center, Nagoya 456‐8587 (Japan);4. Japan Synchrotron Radiation Research Institute, Sayo‐gun, Hyogo 679‐5198 (Japan);5. Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277‐8561 (Japan);6. Department of Energy Science, Sungkyunkwan University, Jangan‐Gu, Suwon 440‐746 (Korea);7. Department of Materials Science, Osaka Prefecture University, Sakai, Osaka 599‐8531 (Japan);8. RIKEN Harima Institute, Sayo‐gun, Hyogo 679‐5148 (Japan);9. Frontier Research Center, Tokyo Institute of Technology, Yokohama 226‐8503 (Japan);10. Faculty of Science, Gakushuin University, Toshima‐ku, Tokyo 171‐8588 (Japan) |
