Some electrical characteristics of Li0.5CrxFe 2.25-xO4 spinel structures

A. Sellai*, H. M. Widatallah

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)

Abstract

Some of the electrical properties of chromium-substituted spinel Li 0.5CrxFe2.25-xO4 with 0.15≤ x ≤1.85, synthesized at 1200 °C for 12 h, are examined through impedance measurements and analysis. The electrical resistivity, relaxation frequencies and dielectric constant of Li0.5CrxFe 2.25-xO4 have been investigated versus the composition x. The behavior of these can be satisfactorily described by a hopping mechanism of charge carriers between Fe2+ and Fe3+ ions on octahedral sites of the spinel lattice.

Original languageEnglish
Pages (from-to)1347-1352
Number of pages6
JournalCeramics International
Volume30
Issue number7
DOIs
Publication statusPublished - 2004
Externally publishedYes
Event3rd Asian Meeting on Electroceramics - Singapore, Singapore
Duration: Dec 7 2003Dec 11 2003

Keywords

  • Impedance analysis
  • Lithium ferrites
  • Spinel structures

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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