Electrical Properties and Cation Valencies in Mn3O4

S. E. DORRIS*, T. O. MASON

*Corresponding author for this work

Research output: Contribution to journalArticle

161 Scopus citations

Abstract

The electrical conductivity and thermopower of Mn3O4 were measured in the temperature range 920° to 1530°C. Electrical conduction in cubic Mn3O4 is explained by the small polaron hopping of electron holes between Mn4+ and Mn3+ on octahedral sites. The concentrations of Mn4+ and Mn3+ are governed by the disproportionation equilibrium 2Mnoct3+⇄Mnoct4++ Mnoct2+. This model also explains the electrical behavior of NiMn2O4 and CuMn2O4.

Original languageEnglish (US)
Pages (from-to)379-385
Number of pages7
JournalJournal of the American Ceramic Society
Volume71
Issue number5
DOIs
StatePublished - May 1988

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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