1. Department of Physics, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397
2. CREST, JST (Japan Science and Technology Corporation)
3. JAIST, Tatsunokuchi, Ishikawa 923-1292
4. Department of Chemistry, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397
5. Department of Applied Physics, Nagoya University, Nagoya 464-8603
6. SPring-8, 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5198