Apparent colossal dielectric relaxation in SrTiO3 at high temperature

Mamoru Fukunaga*, Yoshiaki Uesu, Wataru Kobayashi, Ichiro Terasaki

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)


    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
    Issue number9 B
    Publication statusPublished - 2005 Sept 22


    • Dielectric relaxation
    • Heterogeneity
    • SrTiO

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)


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