Transversely modulated crystal structure of charge-orbital ordered manganites (formula presented) (formula presented) 3/4)

T. Nagai, T. Kimura, Atsushi Yamazaki, T. Asaka, K. Kimoto, Y. Tokura, Y. Matsui

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The crystallographic superstructures of the charge-orbital ordered phases were investigated for layered manganites, (formula presented) (formula presented) 3/4), by high-resolution electron microscopy (HREM) at low temperature. Transverse and sinusoidal structural distortion giving rise to the superstructure were successfully observed in HREM images at 80 K. We also performed the simulations of electron diffraction patterns and HREM images, which support the transverse modulations. The observation implies that a new kind of “Wigner-crystal” model-accompanied with a charge-density wave (CDW) of (formula presented) electrons-best explains the charge-orbital ordered state in the manganites.

    Original languageEnglish
    Pages (from-to)1-4
    Number of pages4
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume65
    Issue number6
    DOIs
    Publication statusPublished - 2002 Jan 1

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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