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

Research output: Contribution to journalArticle

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

Fingerprint

Charge carriers
Chromium
Electric properties
Permittivity
Ions
Chemical analysis
spinell

Keywords

  • Impedance analysis
  • Lithium ferrites
  • Spinel structures

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Some electrical characteristics of Li0.5CrxFe 2.25-xO4 spinel structures. / Sellai, A.; Widatallah, H. M.

In: Ceramics International, Vol. 30, No. 7, 2004, p. 1347-1352.

Research output: Contribution to journalArticle

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AB - 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.

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