Features of the rhombohedral-to-orthorhombic structural phase transition in La1-xSrxMnO3

M. Arao, Yasumasa Koyama, Y. Inoue, Y. Moritomo

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    The R3̄c-to-Pbnm structural phase transition in La1-xSrxMnO3, Which is characterized by changes in the rotational displacement of the MnO6 octahedra and in the crystal system, has been investigated by transmission electron microscopy. The experimental data indicate that the former change results in the appearance of thé antiphase boundary and the latter produces the {110} and {112} twin structures. In addition, the structural phase transition can be reproduced on the basis of the Landau theory, in which a normal structure and an order parameter are, respectively, assumed to be the Pm3m structure and normal coordinates of the rotational displacements.

    Original languageEnglish
    Pages (from-to)5399-5405
    Number of pages7
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume62
    Issue number9
    DOIs
    Publication statusPublished - 2000 Sep 1

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    Phase transitions
    antiphase boundaries
    Transmission electron microscopy
    transmission electron microscopy
    Crystals
    crystals

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Features of the rhombohedral-to-orthorhombic structural phase transition in La1-xSrxMnO3 . / Arao, M.; Koyama, Yasumasa; Inoue, Y.; Moritomo, Y.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 62, No. 9, 01.09.2000, p. 5399-5405.

    Research output: Contribution to journalArticle

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