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 - Sep 22 2005

Keywords

  • Dielectric relaxation
  • Heterogeneity
  • SrTiO

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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