Environmental effect on the magnetic properties of Fe ions in glasses and ceramics

Kh A. Ziq, A. Mekki*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations


The effect of the environment on the magnetic properties of Fe-ions in a sodium germanate glass, a sodium silicate glass, and in the same devitrified glasses has been studied. In the four samples investigated, the inverse magnetic susceptibility (χ-1) follows a Curie-Weiss law behavior with a negative Curie temperature θp indicating an antiferromagnetic interaction in the four samples. The measurements also revealed that |θp| in both glass matrices is relatively low (<10 K) while in the crystalline samples it increased by 4-fold in the silicate and by about 20-fold in the germanate. The molecular field coefficients γm are negative for all four samples. The γm values for the Fe-germanate glass and the crystalline sample are 3 and 10 times larger than the corresponding values for Fe-silicate. These results reflect a stronger exchange interaction in the germanate (glass and crystalline) than the silicate samples.

Original languageEnglish
Pages (from-to)688-692
Number of pages5
JournalJournal of Non-Crystalline Solids
Issue number1
StatePublished - Nov 2001

Bibliographical note

Funding Information:
The authors would like to acknowledge the support of King Fahd University of Petroleum and Minerals.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry


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