9:30 AM - 9:45 AM [16a-Z23-3] High Refractive Index and Low Extinction Coefficient in Infrared Spectrum of Polycrystalline β-FeSi2 Thin Film Prepared by Co-sputtering 〇(M2)Xuanwei Zhang1, Kyoko Namura1, Motofumi Suzuki1 (1.Kyoto Univ.)