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LiMn2O4 thin films were deposited by pulsed laser deposition techniques, two types of substrates were used: LaAlO3 (100) monocrystalline and stainless steel.XRD and SEM results show that the film grown on LaAlO3 (100) shown very good preferred orientations, and the surface texture is very smooth.The LiMn2O4 nano-crystal of the film grown on stainless steel is grain like scattered on the surface, and the size of the nano-crystal is about 300 to 500 nm.