Characterization of FeCo-SiO2 nanocomposite films prepared by sol-gel dip coating

M. F. Casula, A. Corrias*, Andrea Falqui, V. Serin, D. Gatteschi, C. Sangregorio, C. De Julián Fernández, G. Battaglin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

FeCo-SiO2 nanocomposite films on silica glass substrates were prepared by the sol-gel method and characterized by X-ray diffraction, transmission electron microscopy, Rutherford backscattering spectrometry, extended X-ray absorption fine structure spectroscopy, and magnetic susceptibility measurements. FeCo alloy nanoparticles with average sizes around 10 nm were obtained which are well dispersed in the silica matrix and show superparamagnetic behavior. The experimental conditions of the sol-gel preparation influence the thickness and homogeneity of the films. The magnetic properties are also affected by preparation conditions.

Original languageEnglish (US)
Pages (from-to)2201-2207
Number of pages7
JournalChemistry of Materials
Volume15
Issue number11
DOIs
StatePublished - Jun 3 2003

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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