Size effect and domain-wall contribution of barium titanate ceramics

Takuya Hoshina, Yoichi Kigoshi, Saki Hatta, Takasi Teranisi, Hiroaki Takeda, Takaaki Tsurumi

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Barium titanate (BaTiO3) ceramics with various grain sizes from 0.7 to 13 μm were prepared by a conventional sintering method and a two-step sintering method. The permittivity of the BaTiO3 ceramics with an average grain size of 1.1 μm exhibited a maximum around 8,000. By ultrawide range dielectric spectroscopy, the domain-wall contribution to the permittivity was investigated. For the BaTiO3 ceramics with grain sizes over 1 μm, the dipole and ionic polarizabilities were enhanced by the high domain density. In contrast, for the BaTiO3 ceramics with grain sizes below 1 μm, these polarizabilities were weakened.

Original languageEnglish
Pages (from-to)29-36
Number of pages8
JournalFerroelectrics
Volume402
Issue number1
DOIs
Publication statusPublished - 2010
Externally publishedYes

Fingerprint

Barium titanate
Domain walls
barium
domain wall
Permittivity
Sintering
grain size
ceramics
Dielectric spectroscopy
sintering
permittivity
dipoles
spectroscopy
barium titanate(IV)

Keywords

  • Barium titanate
  • domain wall contribution
  • size effect
  • ultrawide range dielectric spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Size effect and domain-wall contribution of barium titanate ceramics. / Hoshina, Takuya; Kigoshi, Yoichi; Hatta, Saki; Teranisi, Takasi; Takeda, Hiroaki; Tsurumi, Takaaki.

In: Ferroelectrics, Vol. 402, No. 1, 2010, p. 29-36.

Research output: Contribution to journalArticle

Hoshina, T, Kigoshi, Y, Hatta, S, Teranisi, T, Takeda, H & Tsurumi, T 2010, 'Size effect and domain-wall contribution of barium titanate ceramics', Ferroelectrics, vol. 402, no. 1, pp. 29-36. https://doi.org/10.1080/00150191003697179
Hoshina, Takuya ; Kigoshi, Yoichi ; Hatta, Saki ; Teranisi, Takasi ; Takeda, Hiroaki ; Tsurumi, Takaaki. / Size effect and domain-wall contribution of barium titanate ceramics. In: Ferroelectrics. 2010 ; Vol. 402, No. 1. pp. 29-36.
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