Magnetic interaction in ferrous antimonite, FeSb2O4, and some derivatives

R D Bayliss, F J Berry, B P De Laune, C Greaves, Ö Helgason, J F Marco, M F Thomas, L Vergara, M J Whitaker

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8 Citations (Scopus)


Ferrous antimonite, FeSb2O4, which is isostructural with Pb3O4, and some lead- and cobalt-doped variants of composition FeSb1.5Pb0.5O4 and Co0.5Fe0.5Sb1.5Pb0.5O4 have been examined by 57Fe and 121Sb Mössbauer spectroscopy. Antimony is present as Sb3+. The presence of Pb2+ on the antimony site induces partial oxidation of Fe2+ to Fe3+. There is no Verwey-type transition in which electrons are shared between iron in different oxidation states. The quasi-one-dimensional magnetic structure gives rise to situations in which weakly coupled Fe2+ ions can coexist in a non-magnetic state alongside Fe3+ ions in a magnetically ordered state.

Original languageEnglish
Pages (from-to)276001
JournalJournal of Physics: Condensed Matter
Issue number27
Publication statusPublished - 19 Jun 2012


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