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 language | English |
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Pages (from-to) | 775-781 |
Number of pages | 7 |
Journal | Journal of Physics and Chemistry of Solids |
Volume | 47 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1986 |
Keywords
- clusters
- defect clusters
- Defects
- electrical conductivity
- Seebeck coefficient
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics