1. Department of Applied Chemistry, School of Science and Engineering, Waseda University, Shinjuku-ku, Tokyo 169-8555, Japan, Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan, CREST, JST, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan, Department of Physics, Graduate School of Science and CIR, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan, and Kagami Memorial Laboratory for Materials Science and...