Domain-structure relaxation in the tetragonal-to-orthorhombic phase transition of the layered perovskite Sr1.8 La0.2 Mn1-y Fey O4

Wataru Norimatsu, Yasumasa Koyama

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    9 Citations (Scopus)

    Abstract

    An in situ observation of the tetragonal-to-orthorhombic phase transition in Fe-substituted Sr1.8 La0.2 Mn O4 by transmission electron microscopy revealed that the domain structure changes, as a relaxation phenomenon, took place during the aging for the formation of the orbital ordered state. At each aging temperature, the final banded domain structure could be produced from any starting state. The characteristic features of the domain-structure relaxation found in this study are also discussed in terms of a coupling between the local Jahn-Teller and long-range dilational distortions.

    Original languageEnglish
    Article number104416
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume75
    Issue number10
    DOIs
    Publication statusPublished - 2007 Mar 21

    Fingerprint

    Perovskite
    Aging of materials
    Phase transitions
    Transmission electron microscopy
    orbitals
    transmission electron microscopy
    Temperature
    perovskite
    temperature

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

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    abstract = "An in situ observation of the tetragonal-to-orthorhombic phase transition in Fe-substituted Sr1.8 La0.2 Mn O4 by transmission electron microscopy revealed that the domain structure changes, as a relaxation phenomenon, took place during the aging for the formation of the orbital ordered state. At each aging temperature, the final banded domain structure could be produced from any starting state. The characteristic features of the domain-structure relaxation found in this study are also discussed in terms of a coupling between the local Jahn-Teller and long-range dilational distortions.",
    author = "Wataru Norimatsu and Yasumasa Koyama",
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    T1 - Domain-structure relaxation in the tetragonal-to-orthorhombic phase transition of the layered perovskite Sr1.8 La0.2 Mn1-y Fey O4

    AU - Norimatsu, Wataru

    AU - Koyama, Yasumasa

    PY - 2007/3/21

    Y1 - 2007/3/21

    N2 - An in situ observation of the tetragonal-to-orthorhombic phase transition in Fe-substituted Sr1.8 La0.2 Mn O4 by transmission electron microscopy revealed that the domain structure changes, as a relaxation phenomenon, took place during the aging for the formation of the orbital ordered state. At each aging temperature, the final banded domain structure could be produced from any starting state. The characteristic features of the domain-structure relaxation found in this study are also discussed in terms of a coupling between the local Jahn-Teller and long-range dilational distortions.

    AB - An in situ observation of the tetragonal-to-orthorhombic phase transition in Fe-substituted Sr1.8 La0.2 Mn O4 by transmission electron microscopy revealed that the domain structure changes, as a relaxation phenomenon, took place during the aging for the formation of the orbital ordered state. At each aging temperature, the final banded domain structure could be produced from any starting state. The characteristic features of the domain-structure relaxation found in this study are also discussed in terms of a coupling between the local Jahn-Teller and long-range dilational distortions.

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