Synthesis, structural, and magnetic characterisation of magnesium-doped lithium ferrite of composition Li0.5Fe2.5O4

Hisham M. Widatallah, Clive Johnson, Frank Berry, Marek Pekala

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Spinel-related magnesium-doped Li0.5Fe2.5O4 has been synthesised by heating magnesium-substituted corundum-related α-Fe2O3 with Li2CO3 at 600°C which is ca. 600°C lower than the temperature normally used to prepare metal-doped Li0.5Fe2.5O4 by conventional sintering methods. Rietveld structure refinement of the X-ray powder diffraction data shows that the Mg2+ ions substitute for Fe3+ ions on the tetrahedral sites whilst the Li+ ions are located on the octahedral sites. The 57Fe Mössbauer spectrum and magnetic measurements are consistent with this structural model.

Original languageEnglish
Pages (from-to)171-175
Number of pages5
JournalSolid State Communications
Volume120
Issue number4
DOIs
Publication statusPublished - Oct 1 2001

Keywords

  • A. lithium ferrite
  • A. magnetic properties
  • C. X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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