Apparent colossal dielectric relaxation in SrTiO3 at high temperature

Mamoru Fukunaga, Yoshiaki Uesu, Wataru Kobayashi, Ichiro Terasaki

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    Complex dielectric constants of SrTiO3 ceramics and single crystals were measured in the temperature range of 303 K to 673 K and the frequency range of 100mHz to 100 kHz. It was found that the ceramic sample exhibits a steplike colossal dielectric relaxation similar to the distorted perovskite CaCu3Ti4O12, while the single crystal exhibits a relaxor-like relaxation. Both features can be explained with a heterogeneous structure model.

    Original languageEnglish
    Pages (from-to)7141-7143
    Number of pages3
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume44
    Issue number9 B
    DOIs
    Publication statusPublished - 2005 Sep 22

    Fingerprint

    Dielectric relaxation
    Single crystals
    ceramics
    single crystals
    Model structures
    Perovskite
    Permittivity
    frequency ranges
    permittivity
    Temperature
    crystals
    temperature

    Keywords

    • Dielectric relaxation
    • Heterogeneity
    • SrTiO

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Apparent colossal dielectric relaxation in SrTiO3 at high temperature. / Fukunaga, Mamoru; Uesu, Yoshiaki; Kobayashi, Wataru; Terasaki, Ichiro.

    In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 44, No. 9 B, 22.09.2005, p. 7141-7143.

    Research output: Contribution to journalArticle

    Fukunaga, Mamoru ; Uesu, Yoshiaki ; Kobayashi, Wataru ; Terasaki, Ichiro. / Apparent colossal dielectric relaxation in SrTiO3 at high temperature. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2005 ; Vol. 44, No. 9 B. pp. 7141-7143.
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