Abstract
Mn, Co, and Ni-doped La0.5Sr0.5FeO3thin films were prepared by the sol-gel technique. The structure and dielectric properties of the films were studied by XRD, SEM, and electrical measurements. The morphology observation demonstrated these films had uniform grain size and smooth surface. The dielectric properties of La0.5Sr0.5FeO3films were improved by the replacement of Fe with Mn, Co, and Ni. The doping amount of Mn, Co, and Ni for the optimal dielectric properties of La0.5Sr0.5FeO3films is 5%, 2%, and 3%, respectively. The observed pure perovskite phase of the doped films suggested the dissolution of Mn, Co, and Ni in La0.5Sr0.5FeO3crystal lattice.
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