Presence of the ferroelectric monoclinic state in the mixed ferroelectric system Ba(Ti 1-xZr x)O 3

Hirofumi Tsukasaki, Yasumasa Koyama

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Citations (Scopus)

    Abstract

    The mixed-oxide system Ba(Ti 1-xZr x)O 3 (BTZ) with the simple perovskite structure was reported to exhibit the remarkable dielectric response around x = 0.08. In order to understand the origin of the response, we have investigated the crystallographic features of ferroelectric states in BTZ with 0 ≤ x ≤ 0.15 mainly by transmission electron microscopy. According to the constructed phase diagram of BTZ, when the Zr content increases from x = 0 around 300 K, the ferroelectric tetragonal state in BaTiO3 is changed into the ferroelectric orthorhombic state around x = 0.03, and then into the ferroelectric monoclinic state around x = 0.06. That is, the monoclinic state with a polarization vector in the {110}PC planes is present in BTZ with 0.07 ≤ x ≤ 0.15, where the subscript PC denotes the paraelectric cubic state. The notable feature of the monoclinic state is that it exhibits the herringbone-type domain structure consisting of nanometer-sized ferroelectric domains. It is thus understood that the remarkable dielectric response in BTZ should be associated with the presence of nanometer-sized domains with the monoclinic symmetry.

    Original languageEnglish
    Title of host publicationAdvanced Materials Research
    Pages555-560
    Number of pages6
    Volume409
    DOIs
    Publication statusPublished - 2012
    Event7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC
    Duration: 2011 Aug 12011 Aug 5

    Publication series

    NameAdvanced Materials Research
    Volume409
    ISSN (Print)10226680

    Other

    Other7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
    CityQuebec City, QC
    Period11/8/111/8/5

    Fingerprint

    Ferroelectric materials
    Perovskite
    Phase diagrams
    Polarization
    Transmission electron microscopy
    Oxides

    Keywords

    • Ba(Ti Zr )O
    • Dielectric response
    • Ferroelectric domain structure
    • Morphotropic phase boundary
    • Transmission electron microscopy

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Tsukasaki, H., & Koyama, Y. (2012). Presence of the ferroelectric monoclinic state in the mixed ferroelectric system Ba(Ti 1-xZr x)O 3 In Advanced Materials Research (Vol. 409, pp. 555-560). (Advanced Materials Research; Vol. 409). https://doi.org/10.4028/www.scientific.net/AMR.409.555

    Presence of the ferroelectric monoclinic state in the mixed ferroelectric system Ba(Ti 1-xZr x)O 3 . / Tsukasaki, Hirofumi; Koyama, Yasumasa.

    Advanced Materials Research. Vol. 409 2012. p. 555-560 (Advanced Materials Research; Vol. 409).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Tsukasaki, H & Koyama, Y 2012, Presence of the ferroelectric monoclinic state in the mixed ferroelectric system Ba(Ti 1-xZr x)O 3 in Advanced Materials Research. vol. 409, Advanced Materials Research, vol. 409, pp. 555-560, 7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011, Quebec City, QC, 11/8/1. https://doi.org/10.4028/www.scientific.net/AMR.409.555
    Tsukasaki, Hirofumi ; Koyama, Yasumasa. / Presence of the ferroelectric monoclinic state in the mixed ferroelectric system Ba(Ti 1-xZr x)O 3 Advanced Materials Research. Vol. 409 2012. pp. 555-560 (Advanced Materials Research).
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