Magnetic properties of Fe ions in a silicate glass and ceramic

  • A. Mekki*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

A homogeneous glass with composition 0.60SiO2-0.3Na2O-0.10Fe2O3 was prepared and devitrified to produce a glass ceramic having a single crystalline phase of formula Na5Fe(SiO3)4. The dc magnetic susceptibility measurements performed on the glass and the heat-treated sample have shown that the magnetic exchange interaction is antiferromagnetic and of equal strength in both samples investigated. It was shown that M versus H data at different temperatures do not collapse to a single curve in the M versus H/T representation for both the glass and the heat-treated sample, further indicating an antiferromagnetic interaction in both materials. The M versus H data for the glass sample was fitted with Brillouin function by keeping the total number of magnetic ions constant and varying the proportion of ferrous ions until a best fit was achieved. The [Fe2+]/[Fetotal] concentration ratio obtained from the fit is in good agreement with the value obtained from X-ray photoelectron spectroscopy (XPS) performed on the glass sample.

Original languageEnglish
Pages (from-to)327-333
Number of pages7
JournalPhysica Status Solidi (A) Applied Research
Volume184
Issue number2
DOIs
StatePublished - 2001

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Magnetic properties of Fe ions in a silicate glass and ceramic'. Together they form a unique fingerprint.

Cite this