Structure-related transport properties of A-site ordered perovskite Sr3 ErMn4 - x Gax O10.5 - d

Wataru Kobayashi, T. Ishibashi

    Research output: Contribution to journalArticle

    Abstract

    We report X-ray diffraction, resistivity, thermopower, and magnetization of Sr3 ErMn4 - x Gax O10.5 - d, in which A-site ordered tetragonal phase appears above x = 1, and reveal that the system exhibits typical properties seen in the antiferromagnetic insulator with Mn3 +. We succeed in preparing both A-site ordered and disordered phases for x = 1 in different preparation conditions, and observe a significant decrease of the resistivity in the disordered phase. We discuss possible origins of the decrease focusing on the dimensionality and the disordered effect.

    Original languageEnglish
    Pages (from-to)353-356
    Number of pages4
    JournalJournal of Magnetism and Magnetic Materials
    Volume322
    Issue number3
    DOIs
    Publication statusPublished - 2010 Feb

    Keywords

    • New A-site ordered manganites
    • Transport and magnetic properties

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

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