Microwave synthesis of magnetoresistive La0.7Ba0.3MnO3 using inorganic precursors

摘要: We report here the use of inorganic precursors as good microwave absorbers, by virtue its polarity and high dielectric constant, to synthesize temperature stable rare earth manganite, La0.7Ba0.3MnO3. Compared other wet chemical methods, oxides prepared assisted route give fine particle (<30 nm) with effective BET surface area ∼25 m2/g. Two factors contribute rapid synthesis these phases. Firstly, constant employed increases power loss in material this leads a local heating effect. Secondly decomposition precursors, lead formation finely divided often accompanied an exothermic reaction which provides needed energy effect product. This method offers new approach employ starting materials realize fast synthesis.