Title of article
Double-peak resistivity transport properties of La0.67Ca0.33MnO3 ceramics
Author/Authors
Surthi، نويسنده , , Shyam and Kotru، نويسنده , , Sushma and Pandey، نويسنده , , R.K. and Fournier، نويسنده , , Patrick، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
4
From page
107
To page
110
Abstract
Polycrystalline samples of La0.67Ca0.33MnO3 were prepared by solid-state reactions by varying the pelletization force and the sintering temperature. Lowering the sintering temperature gave rise to smaller grains and increased the overall resistivity of the ceramic. Partial melting was observed in the ceramics sintered at higher temperatures (1400–1500 °C). Additionally, these ceramics showed two distinct resistivity peaks. The resistivity peak near the magnetic transition (TC) was sharp, whereas the second peak was a broad one observed below TC.
Keywords
B. Solid state reaction , A. Perovskite oxides , D. Resistivity transport , C. Grain boundaries
Journal title
Solid State Communications
Serial Year
2003
Journal title
Solid State Communications
Record number
1787720
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