1. Institute for Molecular Science, Okazaki, 444-8585, Japan
2. The Graduate University for Advanced Studies (SOKENDAI), Okazaki, 444-8585, Japan
3. Tokyo Institute of Technology, Nagatsuta,
Yokohama 226-8503, Japan
4. MO Device Corporation, Kanazawa 920-0335, Japan
5. National Institute for Materials Science, Tsukuba 305-0003, Japan