Spin glass behavior in complexes of iron doped coordinated polymers

Kh A. Ziq*, H. El-Ghanem, I. Arafa, Y. Hamam

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Magnetization measurements were performed on metal polycarbosilazane complexes polymers doped with Fe(II) and Fe(III)-ions. Zero field cooled (ZFC) and field cooled (FC) magnetization for Fe(II) doped polymer were found to bifurcates at a freezing temperature Tg, showing typical spin glass behavior but at much higher fields (∼kOe) than what is commonly observed in metallic spin glass(∼Oe). However, the ZFC magnetization of Fe(III) doped polymer did not reveal any spin-glass behavior. The magnetization curves showed very little Hysteresis effects and saturate at about 40 kOe at 2 K then drops sharply at 20 K. The saturation magnetization continues to drop gradually up to room temperature ∼300 K.

Original languageEnglish
Pages (from-to)1386-1388
Number of pages3
JournalJournal of Non-Crystalline Solids
Volume354
Issue number12-13
DOIs
StatePublished - 15 Feb 2008

Keywords

  • 75.30.Hx
  • 75.50.Lk
  • Magnetic properties
  • Polymers and organics

ASJC Scopus subject areas

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

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