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Title of Journal: J Supercond Nov Magn

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Abbravation: Journal of Superconductivity and Novel Magnetism

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Springer US

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DOI

10.1007/bf01084478

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ISSN

1557-1947

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Effect of Elaborating Technique on the Structural

Authors: S Choura Maatar W CheikhrouhouKoubaa M Koubaa A Cheikhrouhou
Publish Date: 2016/03/10
Volume: 29, Issue: 7, Pages: 1871-1877
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Abstract

In this study we investigated the effect of structural magnetic and magnetocaloric properties of La08Ca01Na01MnO3 LCNMO prepared using both the conventional solidstate method with a consolidation stage at 1000 ∘C and the wellknown sol–gel method combined to a sintering treatment at 950 ∘C Rietveld refinement of the Xray diffraction patterns indicates a rhombohedral structure with R3C space group in both cases It was also found that the magnetocaloric properties of LCNMO are strongly depended on the synthesis technique In fact a global magnetization reduction and a decrease in paramagneticferromagnetic PMFM transition temperature T C associated to an enhancement of the relative cooling power were noticed in sol–gel synthesized sample making it more suitable for magnetic refrigeration applications

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