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

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

doi:10.1023/A:1013170305526

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 journal › Article › peer-review

13 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. SrTi_0.80Ru_0.20O_3-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 language	English
Article number	385606
Pages (from-to)	107-111
Number of pages	5
Journal	Journal of Electroceramics
Volume	7
Issue number	2
DOIs	https://doi.org/10.1023/A:1013170305526
Publication status	Published - 2001
Externally published	Yes

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

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title = "Mixed electronic-ionic conduction in Ru-doped SrTiO3 at high temperature",

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.",

author = "Hiroshige Matsumoto and Daisuke Murakami and Tetsuo Shimura and Hashimoto, \{Shin Ichi\} and Hiroyasu Iwahara",

note = "Funding Information: This work was supported by CREST of JST (Japan Science and Technology). Prof. T. Yogo and Ms.",

year = "2001",

doi = "10.1023/A:1013170305526",

language = "English",

volume = "7",

pages = "107--111",

journal = "Journal of Electroceramics",

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publisher = "Springer Netherlands",

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TY - JOUR

T1 - Mixed electronic-ionic conduction in Ru-doped SrTiO3 at high temperature

AU - Matsumoto, Hiroshige

AU - Murakami, Daisuke

AU - Shimura, Tetsuo

AU - Hashimoto, Shin Ichi

AU - Iwahara, Hiroyasu

N1 - Funding Information: This work was supported by CREST of JST (Japan Science and Technology). Prof. T. Yogo and Ms.

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

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U2 - 10.1023/A:1013170305526

DO - 10.1023/A:1013170305526

M3 - Article

AN - SCOPUS:0035520220

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VL - 7

SP - 107

EP - 111

JO - Journal of Electroceramics

JF - Journal of Electroceramics

IS - 2

M1 - 385606

ER -

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

Abstract

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