Applied Physics A

, Volume 111, Issue 2, pp 665–669 | Cite as

On the magnetic compensation of magnesium doped Ni-Cr ferrites

  • A. Rais
  • A. Addou
  • M. Ameri
  • N. Bouhadouza
  • A. Merine
Article
First Online:
Received:
Accepted:

Abstract

Mg-substituted ferrites NiMgxFe1.1−(2/3)xCr0.9O4 (0≤x≤0.4) were 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 NiFe1.1Cr0.9O4 starts to approach the Curie temperature TC as Mg2+ substitution of Fe3+ increases, until the magnetic compensation disappears at composition x=0.4. The magnetization data at all concentrations are discussed in the light of Néel’s molecular field model given the cations distribution obtained using the Mössbauer spectra analysis.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • A. Rais
    • 1
  • A. Addou
    • 2
  • M. Ameri
    • 1
  • N. Bouhadouza
    • 1
  • A. Merine
    • 1
  1. 1.Département de Physique, Faculté des SciencesUniversité Djilali LiabesSidi Bel AbbesAlgeria
  2. 2.Laboratoire STEVA, Département de ChimieUniversité de MostaganemMostaganemAlgeria

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