Roles of ferroelectricity, antiferroelectricity, and rotational displacement in the ferroelectric incommensurate phase of Pb(Zr1−xTix)O3

S. Watanabe, Yasumasa Koyama

    Research output: Contribution to journalArticle

    14 Citations (Scopus)


    Crystallographic features of the ferroelectric incommensurate phase in Pb(Zr1−xTix)O3 have been investigated by transmission electron microscopy, mainly using x = 0.05 samples obtained by cooling from a high-temperature paraelectric phase under an electric field of 500 V/cm. The present experimental data clearly indicate that the incommensurate and ferroelectric domains coexist independently, and that the incommensurate structure is characterized by not only a periodic-microdomain structure consisting of two M3 variants, but also a periodic array of antiphase boundaries for the M′5 antiferroelectric displacement. These observations suggest that the normal structure of the incommensurate structure should be ferroelectric and that the rotational angle of the M3 rotational displacement can be identified as a modulation mode. In addition, the antiphase boundary of the M′5 antiferroelectric displacement may play the role of discommensuration with a phase slip of Π.

    Original languageEnglish
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Issue number13
    Publication statusPublished - 2001 Jan 1


    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Cite this