DC and AC electrical properties of Sr2-xLixFeMnO 6 compound

A. Sellai; H. Widatallah; O. A. Yassin; M. Elzain

doi:10.4028/0-87849-473-1.150

DC and AC electrical properties of Sr_2-xLi_xFeMnO ₆ compound

A. Sellai^*, H. Widatallah, O. A. Yassin, M. Elzain

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The variations of dc conductivities (σ) of the Sr _2-xLi_xFeMnO₆ double perovskite system over a range of temperatures (100 - 300 K) and for several concentrations (0≤ × ≤ 0.4) of incorporated Li⁺ ions are well described by the equation σ = (B/T) exp(-E_a/kT) and show a decrease with decreasing temperature for a given doping. At a given temperature, a tends to decrease with increasing x. The derived activation energy shows a gradual increase with x with a range of values that are lower than what is usually reported. The measured ac impedance is used to extract the relaxation frequencies as a function of composition and temperature.

Original language	English
Pages (from-to)	150-153
Number of pages	4
Journal	Key Engineering Materials
Volume	368-372 PART 1
DOIs	https://doi.org/10.4028/0-87849-473-1.150
Publication status	Published - 2008

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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abstract = "The variations of dc conductivities (σ) of the Sr 2-xLixFeMnO6 double perovskite system over a range of temperatures (100 - 300 K) and for several concentrations (0≤ × ≤ 0.4) of incorporated Li+ ions are well described by the equation σ = (B/T) exp(-Ea/kT) and show a decrease with decreasing temperature for a given doping. At a given temperature, a tends to decrease with increasing x. The derived activation energy shows a gradual increase with x with a range of values that are lower than what is usually reported. The measured ac impedance is used to extract the relaxation frequencies as a function of composition and temperature.",

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T1 - DC and AC electrical properties of Sr2-xLixFeMnO 6 compound

AU - Sellai, A.

AU - Widatallah, H.

AU - Yassin, O. A.

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PY - 2008

Y1 - 2008

N2 - The variations of dc conductivities (σ) of the Sr 2-xLixFeMnO6 double perovskite system over a range of temperatures (100 - 300 K) and for several concentrations (0≤ × ≤ 0.4) of incorporated Li+ ions are well described by the equation σ = (B/T) exp(-Ea/kT) and show a decrease with decreasing temperature for a given doping. At a given temperature, a tends to decrease with increasing x. The derived activation energy shows a gradual increase with x with a range of values that are lower than what is usually reported. The measured ac impedance is used to extract the relaxation frequencies as a function of composition and temperature.

AB - The variations of dc conductivities (σ) of the Sr 2-xLixFeMnO6 double perovskite system over a range of temperatures (100 - 300 K) and for several concentrations (0≤ × ≤ 0.4) of incorporated Li+ ions are well described by the equation σ = (B/T) exp(-Ea/kT) and show a decrease with decreasing temperature for a given doping. At a given temperature, a tends to decrease with increasing x. The derived activation energy shows a gradual increase with x with a range of values that are lower than what is usually reported. The measured ac impedance is used to extract the relaxation frequencies as a function of composition and temperature.

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DC and AC electrical properties of Sr_2-xLi_xFeMnO ₆ compound

Abstract

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