1. Chemical Resources Laboratory, Tokyo Institute of Technology, R1-21, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, “Creation of bio-devices and bio-systems with chemical and biological molecules for medical use”, CREST, Japan Science and Technology Agency (JST), Japan, Department of Physics, Okayama University, Tsushimanaka 3-1-1, Okayama 700-8530, Japan, and Materials and Structures Laboratory, Tokyo Institute of Technology, R3-7, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan