Nonstoichiometry, cation distribution, and electrical properties in Fe3O4{single bond}CoFe2O4 at high temperature

D. S. Erickson, Thomas O Mason

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Abstract

Cation distributions in the system Fe3O4{single bond}CoFe2O4 from 600 to 1300°C were calculated from high-temperature thermopower measurements on oxygen-stoichiometric specimens. Behavior is virtually identical to that in the Fe3O4{single bond}MgFe2O4 system. Conductivity inCoxFe3-xO4 (x <1) obeys the relationshipσ = [d e / (d + e)] T- 1 exp [14.3 - 1475 T- 1 (1 + 1.189 x2)],, whered ande are the octahedral Fe2+ and Fe3+ occupancies, respectively.

Original languageEnglish
Pages (from-to)42-53
Number of pages12
JournalJournal of Solid State Chemistry
Volume59
Issue number1
DOIs
Publication statusPublished - 1985

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ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Condensed Matter Physics

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