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
Externally publishedYes

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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