Defect agglomeration in wüstite at high temperatures-II. An electrical conduction model

E. Gartstein*, J. B. Cohen, T. O. Mason

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

A defect/electrical conduction model based upon a mixture of 5:2 and 13:4 (vacancy-to-tetrahedral) clusters is proposed for FeO which is consistent with available diffraction, nonstoichiometry and electrical data. Conduction occurs via small polaron hopping between Fe3+ and Fe2+ on octahedral near-cluster sites with two vacancy nearest neighbors. Evidence is cited for an increase in Fe2+ on tetrahedral (interstitial) sites as temperature increases.

Original languageEnglish (US)
Pages (from-to)775-781
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume47
Issue number8
DOIs
StatePublished - 1986

Keywords

  • Defects
  • Seebeck coefficient
  • clusters
  • defect clusters
  • electrical conductivity

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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