Mixed electronic-ionic conduction in Ru-doped SrTiO3 at high temperature

Hiroshige Matsumoto, Daisuke Murakami, Tetsuo Shimura, Shin Ichi Hashimoto, Hiroyasu Iwahara

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The electronic and ionic conduction behavior of Ru-doped SrTiO3 at high temperature was investigated. The conductivity increased significantly with increasing Ru content. SrTi0.80Ru0.20O3-δ exhibits fairly high conductivities, e.g., 3 S cm-1 at 1000°C, and 2 S cm-1 at 600°C. The conductivity had only a slight dependence on the partial pressure of oxygen over a wide range and was largely attributed to n-type electronic conduction. Ru-doped SrTiO3 showed mixed oxide-ionic and electronic conduction under reducing atmospheres. The mechanism of the electronic and ionic conduction is discussed.

Original languageEnglish
Article number385606
Pages (from-to)107-111
Number of pages5
JournalJournal of Electroceramics
Volume7
Issue number2
DOIs
Publication statusPublished - Jan 1 2001
Externally publishedYes

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Ionic conduction
conduction
electronics
Partial pressure
conductivity
Oxides
Oxygen
Temperature
mixed oxides
partial pressure
atmospheres
strontium titanium oxide
oxygen

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Mixed electronic-ionic conduction in Ru-doped SrTiO3 at high temperature. / Matsumoto, Hiroshige; Murakami, Daisuke; Shimura, Tetsuo; Hashimoto, Shin Ichi; Iwahara, Hiroyasu.

In: Journal of Electroceramics, Vol. 7, No. 2, 385606, 01.01.2001, p. 107-111.

Research output: Contribution to journalArticle

Matsumoto, H, Murakami, D, Shimura, T, Hashimoto, SI & Iwahara, H 2001, 'Mixed electronic-ionic conduction in Ru-doped SrTiO3 at high temperature', Journal of Electroceramics, vol. 7, no. 2, 385606, pp. 107-111. https://doi.org/10.1023/A:1013170305526
Matsumoto, Hiroshige ; Murakami, Daisuke ; Shimura, Tetsuo ; Hashimoto, Shin Ichi ; Iwahara, Hiroyasu. / Mixed electronic-ionic conduction in Ru-doped SrTiO3 at high temperature. In: Journal of Electroceramics. 2001 ; Vol. 7, No. 2. pp. 107-111.
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