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A novel sol–gel process was developed for preparing thin films and fine powders of lanthanum manganite (LaMnO 3 ) with perovskite‐type structure. Lanthanum and manganese acetylacetonate powders could be easily dissolved in a mixed solution of methyl alcohol and ethylene glycol (or methyl alcohol and propionic acid) to give a spinnable organic solution as a starting material. Pretreatment of a substrate by poly(vinyl alcohol) (PVA) aqueous solution, a gel former, made it possible to deposit a thin film as well as to lower the sintering temperature.
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Shimizu et al. (1997) studied this question.
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