Institution: | 1. Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, SORST, Japan Science and Technology Agency, Osaka 565‐0871, Japan, Fax: (+81)?6‐6879‐7370;2. Radiation Laboratory, Departments of Chemistry & Biochemistry and Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA, Fax: (+1)?574‐631‐8068;3. Current address: School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), Nomi, Ishikawa, 923‐1292, Japan |