Doping effect on ferroelectric microstructure in YMn 1-xTi xO 3

S. Mori, J. Tokunaga, Y. Horibe, T. Asada, Yasumasa Koyama, Takuro Katsufuji

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

    3 Citations (Scopus)

    Abstract

    We have investigated microstructures related to anomalous ferroelectric properties such as the magnetocapacitance effect in magnetic ferroelectric compounds YMn1 - xTixO3 and (Y,A)Mn0.825Ti0.175O3 (A = La, Ca, Zr) mainly by the transmission electron microscopy. It is found that the size of the ferroelectric domains in YMn1 - xTixO3 depends strongly on the Ti concentration (x) and the size is estimated to be about 10-20 nm in the x = 0.175 compound. In addition, structural change from the ferroelectric P63 cm phase to the rhombohedral one was found in the x = 0.40 compound. On the other hand, characteristic diffuse scattering elongating along both the [001] and [110] direction was found in (Y,Zr)Mn0.825Ti0.175O3, which is similar to that found in the x = 0.175 compound. It is revealed that the partial substitution in YMnO3 breaks the long-ranged FE ordering and structural fluctuation is induced, which should be responsible for the anomalous FE behaviors in these compounds.

    Original languageEnglish
    Title of host publicationFerroelectrics
    Pages170-176
    Number of pages7
    Volume348
    DOIs
    Publication statusPublished - 2007
    Event8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8 - Tsukuba, Japan
    Duration: 2006 May 152006 May 19

    Other

    Other8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8
    CountryJapan
    CityTsukuba
    Period06/5/1506/5/19

    Fingerprint

    Ferroelectric materials
    Doping (additives)
    microstructure
    Microstructure
    substitutes
    transmission electron microscopy
    scattering
    Substitution reactions
    Scattering
    Transmission electron microscopy

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Electronic, Optical and Magnetic Materials

    Cite this

    Mori, S., Tokunaga, J., Horibe, Y., Asada, T., Koyama, Y., & Katsufuji, T. (2007). Doping effect on ferroelectric microstructure in YMn 1-xTi xO 3 In Ferroelectrics (Vol. 348, pp. 170-176) https://doi.org/10.1080/00150190701196393

    Doping effect on ferroelectric microstructure in YMn 1-xTi xO 3 . / Mori, S.; Tokunaga, J.; Horibe, Y.; Asada, T.; Koyama, Yasumasa; Katsufuji, Takuro.

    Ferroelectrics. Vol. 348 2007. p. 170-176.

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

    Mori, S, Tokunaga, J, Horibe, Y, Asada, T, Koyama, Y & Katsufuji, T 2007, Doping effect on ferroelectric microstructure in YMn 1-xTi xO 3 in Ferroelectrics. vol. 348, pp. 170-176, 8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8, Tsukuba, Japan, 06/5/15. https://doi.org/10.1080/00150190701196393
    Mori, S. ; Tokunaga, J. ; Horibe, Y. ; Asada, T. ; Koyama, Yasumasa ; Katsufuji, Takuro. / Doping effect on ferroelectric microstructure in YMn 1-xTi xO 3 Ferroelectrics. Vol. 348 2007. pp. 170-176
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    abstract = "We have investigated microstructures related to anomalous ferroelectric properties such as the magnetocapacitance effect in magnetic ferroelectric compounds YMn1 - xTixO3 and (Y,A)Mn0.825Ti0.175O3 (A = La, Ca, Zr) mainly by the transmission electron microscopy. It is found that the size of the ferroelectric domains in YMn1 - xTixO3 depends strongly on the Ti concentration (x) and the size is estimated to be about 10-20 nm in the x = 0.175 compound. In addition, structural change from the ferroelectric P63 cm phase to the rhombohedral one was found in the x = 0.40 compound. On the other hand, characteristic diffuse scattering elongating along both the [001] and [110] direction was found in (Y,Zr)Mn0.825Ti0.175O3, which is similar to that found in the x = 0.175 compound. It is revealed that the partial substitution in YMnO3 breaks the long-ranged FE ordering and structural fluctuation is induced, which should be responsible for the anomalous FE behaviors in these compounds.",
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    AU - Koyama, Yasumasa

    AU - Katsufuji, Takuro

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