Affiliation: | a Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan;b Research and Development Division, Tokuyama., Co. Ltd., ICR-building, Minamiyoshinari, Aoba-ku, Sendai, Japan;c Institute of Physics, The Academy of Sciences of the Czech Republic, Cukrovarnicka 10, 162 00 Prague 6, Czech Republic;d New Industry Creation Hatchery Center (NICHe), 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan |