11:15 AM - 11:30 AM [16a-F201-8] First principles studies on CuIn5Se8, CuGa5Se8, CuIn5S8, CuGa5S8 〇(PC)Tsuyoshi Maeda1, Seitarou Nakashima1, Takahiro Wada1 (1.Ryukoku Univ.)