Effect of Mg2+ on the magnetic compensation of lithium-chromium ferrite

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Abstract

Mg-substituted ferrite Li0.5MgxFe1.25-(2/3)xCr1.25O4 (0 ≤ x ≤ 0.3) was studied using X-ray diffraction, Mössbauer spectroscopy and magnetic measurements. X-ray diffraction patterns show that all samples have cubic spinel structure. The temperature-dependent magnetic measurements revealed that the compensation point TK of Li0.5Cr1.25O4 starts to approach the Neel temperature TN as Mg2+ substitution of Fe3+ increases, until the compensation disappears at x = 0.3. This effect is investigated in relation to the cation distribution established using the Mössbauer study of this system.

Original languageEnglish
Pages (from-to)229-234
Number of pages6
JournalHyperfine Interactions
Volume156-157
Issue number1-4
Publication statusPublished - Mar 2004

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Keywords

  • Magnetic compensation
  • Mössbauer spectroscopy
  • X-ray diffraction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

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