Inherent nanoscale bend of crystal lattice in Fe-doped calcium copper titanate

Sung Yoon Chung, Si Young Choi, Takahisa Yamamoto, Yuichi Ikuhara

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    Utilizing high-resolution electron microscopy and image simulation, it is demonstrated that some of the crystal lattices of Fe-doped CaCu 3Ti4O12 are intrinsically bent at the nanometer scale. A comparison between experimentally obtained and simulated images indicates that the bending angle is of a few milliradians, which is remarkable in a brittle oxide. Despite such lattice distortion, much of the lattice strain induced by the distortion appears to be released at the domain walls where a number of misfit dislocations are present.

    Original languageEnglish
    Article number121903
    JournalApplied Physics Letters
    Volume89
    Issue number12
    DOIs
    Publication statusPublished - 2006

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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