10:45 AM - 11:00 AM △ [21a-E302-8] Characterization of 5D0→7F2 electric dipole transition of Eu3+ ions in Y3+ sites with low and high symmetries in YSiO2N 〇Yuuki Kitagawa1, Jumpei Ueda1, Setsuhisa Tanabe1 (1.Kyoto Univ.)