Cation distribution and magnetic properties of nickel-chromium ferrites NiCrxFe2-xO4 (0 ≤ x ≤ 1.4)

A. Rais*, A. M. Gismelseed, I. A. Al-Omari

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Nickel-chromium ferrites NiCrxFe2-xO4 (0 ≤ x ≤ 1.4) 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 = 0.9, 1.2 and 1.4. 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)1497-1503
Number of pages7
JournalPhysica Status Solidi (B) Basic Research
Volume242
Issue number7
DOIs
Publication statusPublished - Jun 2005

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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