1. Department of Applied Chemistry; Faculty of Science and Engineering; Waseda University; Ohkubo-3 Shinjuku-ku Tokyo 169-8555 Japan), Fax: (+81) 3-5286-3199
2. National Institute for Materials Science (NIMS); International Center for Materials Nanoarchitechtonics (MANA); Namiki-1 Tsukuba Ibaraki 305-0044 Japan
3. Department of Physics; Nagoya University; Furo-cho Chikusa-ku, Nagoya Aichi 464-8602 Japan
4. Kagami Memorial Research Institute for Materials Science and Technology; Waseda University; Nishiwaseda-2 Shinjuku-ku Tokyo 169-0051 Japan