The optical properties of rare-earth multi-ferroelectric thin-film LuFeO 3 and LuFe 1-x Mn x O 3 fabricated with Sol-gel method

Abstract

RMO 3 (R=rare earth, M=Fe, Mn, Ni) is a kind of multi-ferroelectric material 1 while Lu is a element which has been widely used in electroluminescence area. Material constituted with Fe and Lu is thought to have special properties on electromagnetic coupling due to the reactivity of Lu and the magnetism of Fe. For example, LuFe 2 O 4 is a new type of electric ferroelectric material which has become more and more concerned after Ikeda reported it in the Nature magazine in 2005. 2 We successfully fabricated another LuFeO 3 thin film with sol-gel method on Si substrates with different constituents, and analyzed the structural, optical properties of the samples. We investigated the optical properties with UV-Vis, PL, etc. After Mn was doped, the properties were compared with the previous ones.