Pb displacements in Pb(ZrTi)O3 (PZT)

T. R. Welberry, K. Z. Baba-Kishi, R. L. Withers

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    1 Citation (Scopus)

    Abstract

    Structured diffuse scattering has been observed in selected area electron diffraction patterns of PbZr1-xTixO3 (PZT). This scattering is most evident in the rhombohedral (Zr-rich) phase but has also been observed for a range of compositions including in the important morphotropic phase boundary (MPB) region as well as in the tetragonal (Ti-rich) phase. Monte Carlo computer simulation has been used to show that the scattering originates from the correlation between the displacements of cations in chains running along all four of the cubic <111>c directions. The transverse polarised nature of the scattering means that the ionic shifts are also directed along <111>c. The results are difficult to reconcile with current structural models for the low temperature phases of PZT. It is conjectured that these phases must still contain significant remnants of the disorder present in the high-temperature paraelectric cubic phase.

    Original languageEnglish
    Title of host publicationAsian Ceramic Science for Electronics III and Electroceramics in Japan XII
    PublisherTrans Tech Publications Ltd.
    Pages389-394
    Number of pages6
    ISBN (Print)0878493069, 9780878493067
    DOIs
    Publication statusPublished - 2010
    Event6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan - Tsukuba, Japan
    Duration: 22 Oct 200824 Oct 2008

    Publication series

    NameKey Engineering Materials
    Volume421-422
    ISSN (Print)1013-9826
    ISSN (Electronic)1662-9795

    Conference

    Conference6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan
    Country/TerritoryJapan
    CityTsukuba
    Period22/10/0824/10/08

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