RMO3 (R=rare earth, M=Fe, Mn, Ni) is a kind of multi-ferroelectric material1 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, LuFe2O4 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 LuFeO3 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.
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