On the magnetic compensation effect of lithium-chromium ferrites Li 0.5CrxFe2.5-xO4 (0 ≤ x ≤ 1.55)

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Lithium-chromium ferrites Li0.5Fe2.5-xCr xO4 (0 ≤ x ≤ 1.55) were studied using X-ray diffraction, magnetization measurements and Mössbauer spectroscopy. X-ray diffraction patterns show that all samples have cubic spinel structure. The temperature dependent magnetic measurements revealed that a magnetic compensation point appears at chromium concentration x = 1.05, 1.25 and 1.55. Moreover, it was observed that the Curie temperature TC decreases and approaches the compensation temperature TK as Cr3+ substitution for Fe3+ increases. The magnetization data at all concentrations are discussed in the light of Néel's molecular field model taking into account the cation distributions obtained using the analysis of Mössbauer spectra.

Original languageEnglish
Pages (from-to)2949-2955
Number of pages7
JournalPhysica Status Solidi (B) Basic Research
Issue number14
Publication statusPublished - Nov 2005


ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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