Title of article
Extrinsic properties of colossal magnetoresistive samples
Author/Authors
Lisboa-Filho، نويسنده , , P.N. and Mombrْ، نويسنده , , A.W. and Pardo، نويسنده , , H. and Leite، نويسنده , , E.R. and Ortiz، نويسنده , , W.A، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
6
From page
31
To page
36
Abstract
In this work, we report a study on the extrinsic properties of La0.7Ca0.3MnOy samples and their relation with the microstructural configuration. Precursor powders and polycrystalline samples were prepared using three different methods. Comparative results of X-ray diffraction associated with Rietveld refinement, scanning electron microscopy and AC magnetic susceptibility measurements were employed to investigate the influence of grain morphology and the effect of boundaries in the competition between intrinsic and extrinsic properties in these compounds that are known to present the colossal magnetoresistance phenomenon.
Keywords
B. Chemical synthesis , C. Grain boundaries , D. Electronic transport , A. Magnetically ordered materials
Journal title
Solid State Communications
Serial Year
2004
Journal title
Solid State Communications
Record number
1762895
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