Electron/hole and ion transport in La1-xSrxFeO3-δ

M. V. Patrakeev, J. A. Bahteeva, E. B. Mitberg, I. A. Leonidov, V. L. Kozhevnikov, Kenneth R Poeppelmeier

Research output: Contribution to journalArticle

152 Citations (Scopus)

Abstract

The conductivity of the entire solid solution La1-xSrxFeO3-δ, where x=0.2, 0.4, 0.5, 0.7 and 0.9, in the oxygen partial pressure range 10-19-0.5atm and temperatures between 750°C and 950°C is reported. The partial contributions from different charge carriers and the energetic parameters governing transport of charged species reveal that the lanthanum-strontium ferrites can be characterized as mixed, ion-electron conductors in the low oxygen pressure/high oxygen deficiency limit. The partial contributions to conductivity from oxygen ions, electrons and holes increase with strontium content and attain maximal values at x=0.5. Further increase in doping results in development of oxygen vacancy ordering phenomena and deterioration of conducting properties.

Original languageEnglish
Pages (from-to)219-231
Number of pages13
JournalJournal of Solid State Chemistry
Volume172
Issue number1
DOIs
Publication statusPublished - Apr 2003

Fingerprint

strontium
Ions
Oxygen
high pressure oxygen
conductivity
Strontium
Electrons
hypoxia
oxygen
oxygen ions
deterioration
lanthanum
partial pressure
charge carriers
ferrites
ions
electrons
solid solutions
conductors
conduction

Keywords

  • Electron conductivity
  • Lanthanum-strontium ferrite
  • Oxygen conductivity
  • Oxygen ordering

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Patrakeev, M. V., Bahteeva, J. A., Mitberg, E. B., Leonidov, I. A., Kozhevnikov, V. L., & Poeppelmeier, K. R. (2003). Electron/hole and ion transport in La1-xSrxFeO3-δ Journal of Solid State Chemistry, 172(1), 219-231. https://doi.org/10.1016/S0022-4596(03)00040-9

Electron/hole and ion transport in La1-xSrxFeO3-δ . / Patrakeev, M. V.; Bahteeva, J. A.; Mitberg, E. B.; Leonidov, I. A.; Kozhevnikov, V. L.; Poeppelmeier, Kenneth R.

In: Journal of Solid State Chemistry, Vol. 172, No. 1, 04.2003, p. 219-231.

Research output: Contribution to journalArticle

Patrakeev, MV, Bahteeva, JA, Mitberg, EB, Leonidov, IA, Kozhevnikov, VL & Poeppelmeier, KR 2003, 'Electron/hole and ion transport in La1-xSrxFeO3-δ ', Journal of Solid State Chemistry, vol. 172, no. 1, pp. 219-231. https://doi.org/10.1016/S0022-4596(03)00040-9
Patrakeev, M. V. ; Bahteeva, J. A. ; Mitberg, E. B. ; Leonidov, I. A. ; Kozhevnikov, V. L. ; Poeppelmeier, Kenneth R. / Electron/hole and ion transport in La1-xSrxFeO3-δ In: Journal of Solid State Chemistry. 2003 ; Vol. 172, No. 1. pp. 219-231.
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