Title of article
Structure and transport in rare-earth ferrates
Author/Authors
Berenov، نويسنده , , Andrey and Angeles، نويسنده , , Eloisa and Rossiny، نويسنده , , Jeremy and Raj، نويسنده , , Edwin and Kilner، نويسنده , , John and Atkinson، نويسنده , , Alan، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2008
Pages
4
From page
1090
To page
1093
Abstract
The Rare-Earth ferrates REFeO3 (RE = La, Pr, Sm, Gd, Ho) were prepared by the citric acid route. The distortion in the FeO6 octahedron decreased with the decrease in the ionic radii (except for Ho) and the angle between adjacent FeO6 octahedra decreased with the ionic radius of the rare earth. Electrical conductivity showed semiconducting behaviour with a complex dependence of the activation energy on the ionic radii of RE ion. Fast oxygen desorption was observed above 300 °C. No effect of A-site cation on the coefficients of thermal expansion was observed.
Keywords
Perovskite , Cation disorder , electrical conductivity , crystal structure
Journal title
Solid State Ionics
Serial Year
2008
Journal title
Solid State Ionics
Record number
1720709
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