Aging of Sr<inf>2</inf>FeMoO<inf>6</inf> and related oxides

J. Navarro, C. Frontera, D. Rubi, N. Mestres, J. Fontcuberta

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    27 Citations (Scopus)

    Abstract

    The structural stability of the ferromagnetic and metallic double perovskites such as Sr2FeMoO6 has been explored using X-ray diffraction and Raman spectroscopy. It is found that under air atmosphere, at room temperature, the unit cell expands with time and gradually decomposes into SrMoO4. At higher temperatures the decomposition proceeds faster. Whereas in sintered pellets, the effect of this structural transformation on the transport properties is moderate, it becomes dramatic on granular thick films prepared by screen printing. The relevance of these findings for possible technological applications of Sr2FeMoO 6 is discussed. © 2003 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    Pages (from-to)1477-1486
    JournalMaterials Research Bulletin
    Volume38
    Issue number9-10
    DOIs
    Publication statusPublished - 2 Sep 2003

    Keywords

    • A. Magnetic materials
    • C. Raman spectroscopy
    • C. X-ray diffraction
    • D. Electronical properties
    • D. Microstructure

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