Magnetic properties of spinel oxides, InFeMO4 (M=Mg, Co and Ni)

M. Matvejeff*, J. Lindén, T. Motohashi, M. Karppinen, H. Yamauchi

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

The impact of cation composition on the magnetic properties in the InFeMO4 mixed spinel system (M=Mg,Co,Ni) has been studied by means of AC/DC magnetization and 57Fe Mössbauer spectroscopy measurements. Existence of a glassy state was confirmed for InFeCoO4 by AC magnetization measurement, whereas the shape of the hysteresis loop in M - H measurement suggests the presence of strong interactions between the magnetic clusters. Soft magnet-type behaviour was observed for InFeNiO4 with the value of saturation magnetization suggesting the presence of canted spin structure as a consequence of the presence of nonmagnetic indium. In the case of InFeMgO4 the further magnetic dilution due to nonmagnetic magnesium was observed to lead to clear decay in long-range magnetic order, although the presence of short-range magnetic order was confirmed by M - H and 57Fe Mössbauer measurements.

Original languageEnglish
Pages (from-to)249-254
Number of pages6
JournalSolid State Communications
Volume144
Issue number5-6
DOIs
Publication statusPublished - Nov 2007
MoE publication typeA1 Journal article-refereed

Keywords

  • A. Disordered systems
  • A. Magnetically ordered materials
  • A. Spin glasses
  • D. Exchange and superexchange

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