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

A. Sellai; H. M. Widatallah

doi:10.1016/j.ceramint.2003.12.109

Some electrical characteristics of Li_0.5Cr_xFe _2.25-xO₄ spinel structures

A. Sellai^*, H. M. Widatallah

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Conference article › peer-review

8 Citations (Scopus)

Abstract

Some of the electrical properties of chromium-substituted spinel Li _0.5Cr_xFe_2.25-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 Li_0.5Cr_xFe _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 language	English
Pages (from-to)	1347-1352
Number of pages	6
Journal	Ceramics International
Volume	30
Issue number	7
DOIs	https://doi.org/10.1016/j.ceramint.2003.12.109
Publication status	Published - 2004
Event	3rd Asian Meeting on Electroceramics - Singapore, Singapore Duration: Dec 7 2003 → Dec 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

Access to Document

10.1016/j.ceramint.2003.12.109

Cite this

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title = "Some electrical characteristics of Li0.5CrxFe 2.25-xO4 spinel structures",

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.",

keywords = "Impedance analysis, Lithium ferrites, Spinel structures",

author = "A. Sellai and Widatallah, {H. M.}",

year = "2004",

doi = "10.1016/j.ceramint.2003.12.109",

language = "English",

volume = "30",

pages = "1347--1352",

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note = "3rd Asian Meeting on Electroceramics ; Conference date: 07-12-2003 Through 11-12-2003",

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TY - JOUR

T1 - Some electrical characteristics of Li0.5CrxFe 2.25-xO4 spinel structures

AU - Sellai, A.

AU - Widatallah, H. M.

PY - 2004

Y1 - 2004

N2 - 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.

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.

KW - Impedance analysis

KW - Lithium ferrites

KW - Spinel structures

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DO - 10.1016/j.ceramint.2003.12.109

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AN - SCOPUS:4344598293

SN - 0272-8842

VL - 30

SP - 1347

EP - 1352

JO - Ceramics International

JF - Ceramics International

IS - 7

T2 - 3rd Asian Meeting on Electroceramics

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