Synthesis, crystal structure, and magnetic order of the layered iron oxycarbonate Sr4Fe2O6CO3

K. Yamaura, Q. Huang, J. W. Lynn, R. W. Erwin, R. J. Cava

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The iron oxycarbonate Sr4Fe2O6CO3 is reported. The crystal structure and magnetic order were determined by magnetic susceptibility, powder neutron diffraction, and neutron scattering studies. The structure is tetragonal between 10 and 400 K (I4/mmm, a = 3.88907(4) Å and c = 27.9818(4) Å at 295 K), and is related to a 4:3 type Ruddlesden-Popper phase with CO3 plaques in place of the middle layer of transition metal octahedra. The three-dimensional magnetic ordering transition temperature is 361 K. The magnetic order is antiferromagnetic within the FeO2/SrO/SrO/FeO2 blocks and ferromagnetic between blocks. (C) 2000 Academic Press.

Original languageEnglish (US)
Pages (from-to)374-380
Number of pages7
JournalJournal of Solid State Chemistry
Issue number2
StatePublished - 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

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


  • Layered oxycarbonates
  • Neutron scattering
  • Powder neutron diffraction
  • Ruddlesden-Popper phases
  • SrFeOCO


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