Journal of Sol-Gel Science and Technology

, Volume 8, Issue 1–3, pp 311–314 | Cite as

Investigation of the nature of iron oxide species present in ruby glasses prepared by the sol-gel method

  • M. G. Ferreira Da Silva
  • C. Bender Koch
Article

Abstract

Mössbauer spectroscopy in an external magnetic field, electron diffraction microscopy and electron spin resonance (ESR) measurements were used in an attempt to characterize the iron oxide particles present in ruby glasses prepared by the sol-gel method. The obtained results lead to the conclusion that particles are present as a ferromagnetic phase that shows superparamagnetic behaviour.

Keywords

iron oxide ruby glass Mössbauer spectroscopy electron diffraction microscopy electron spin resonance 

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Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • M. G. Ferreira Da Silva
    • 1
  • C. Bender Koch
    • 2
  1. 1.Departamento de Engenharia Cerâmica e do VidroUniversidade de AveiroAveiroPortugal
  2. 2.Physics DepartmentTechnical University of DenmarkLyngbyDenmark

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