1:30 PM - 3:30 PM [17p-PB05-1] Concentration dependence of lattice constant and Raman spectra in Y2O3 with 0.5~3.0% Er substituted at the Y site 〇(M2)Masaaki Tateno1, Suguru Azuma1, Masamichi Sakai1 (1.Saitama Univ.)