〇(DC)Anh Tung Doan^1,2, Thang Duy Dao¹, Dang Hai Ngo^1,2, Orjan Handegard^1,2, Thien Duc Ngo^1,2, Satoshi Ishii¹, Tadaaki Nagao^1,2 (1.Photonics Nano-engineering Group, Materials Architectonics, National Inst. for Materials Science, Japan, 2.Department of Condensed Matter Physics, Graduate School of Science, Hokkaido Univ., Japan)