A structural and mössbauer study of Y3Fe5O 12 nanoparticles prepared with high energy ball milling and subsequent sintering

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Abstract

The influence of ball milling and subsequent sintering of a 3:5 molar mixture of Y2O3 and α-Fe2O3 on the formation of nanocrystalline Y3Fe5O12 (YIG) particles is studied. Pre-milling the mixture for 100 h lowers the onset temperature at which the material forms to 900°C which is 200°C lower than that reported when a similar mixture of reactants was premilled for shorter times. A single-phased nanocrystalline Y3Fe5O 12 phase develops as a sole product when the pre-milled mixture is heated at 1,000°C (12 h). This temperature is ~300-400°C lower than those used to prepare the material conventionally. The bulk and surface crystal structure of the nanoparticles is studied with X-ray diffraction, Mössbauer spectroscopy, Atomic Force Microscope (AFM) and X-ray photoelectron spectroscopy.

Original languageEnglish
Pages (from-to)87-92
Number of pages6
JournalHyperfine Interactions
Volume183
Issue number1-3
DOIs
Publication statusPublished - Apr 2008

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Keywords

  • AFM
  • Ball milling
  • Mössbauer spectroscopy
  • XPS
  • XRD
  • YIG

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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