Dynamic magnetic behavior of cluster-glass ZnFe2O4 nanosystem

H. M. Widatallah, I. A. Al-Omari, F. Sives, M. B. Sturla, S. J. Stewart

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Abstract

We present an investigation on the dynamic magnetic behavior of nanosized zinc ferrites with different grain sizes (∼6-13 nm) and degree of inversion (∼0.2-0.4). We show that the observed behavior can be interpreted through the progressive blocking and freezing of interacting magnetic clusters formed due to the random non-equilibrium distribution of cations. Furthermore, the glassy character is more pronounced as the ferrite is more inverted, and this coincides with the grain/particle size increment.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume320
Issue number14
DOIs
Publication statusPublished - Jul 2008

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Keywords

  • ac Susceptibility
  • Cluster glass
  • Nanoparticles
  • Zinc ferrite

ASJC Scopus subject areas

  • Condensed Matter Physics

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