Article (Scientific journals)
Magnetocaloric effect in nano- and polycrystalline manganite La0.7Ca0.3MnO3
Pekala, Marek; Drozd, V.; Fagnard, Jean-François et al.
2008In Applied Physics. A, Materials Science and Processing, 90 (2), p. 237-241
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Keywords :
magnetic measurements; manganites; magnetocaloric effect
Abstract :
[en] La0.7Ca0.3MnO3 samples were prepared in nano- and polycrystalline forms by the sol-gel and solid state reaction methods, respectively, and structurally characterized by synchrotron X-ray diffraction. The magnetic properties determined by ac susceptibility and dc magnetization measurements are discussed. The magnetocaloric effect in this nanocrystalline manganite is spread over a broader temperature interval than in the polycrystalline case. The relative cooling power of the poly- and nanocrystalline manganites is used to evaluate a possible application for magnetic cooling below room temperature.
Research center :
SUPRATECS - Services Universitaires pour la Recherche et les Applications Technologiques de Matériaux Électro-Céramiques, Composites, Supraconducteurs - ULiège
Disciplines :
Materials science & engineering
Physics
Author, co-author :
Pekala, Marek;  University of Warsaw
Drozd, V.;  Kiev National Taras Shevchenko University
Fagnard, Jean-François  ;  Université de Liège - ULiège > Dép. d'électric.
Vanderbemden, Philippe  ;  Université de Liège - ULiège > Capteurs et systèmes de mesures électriques
Ausloos, Marcel ;  Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux
Language :
English
Title :
Magnetocaloric effect in nano- and polycrystalline manganite La0.7Ca0.3MnO3
Publication date :
February 2008
Journal title :
Applied Physics. A, Materials Science and Processing
ISSN :
0947-8396
eISSN :
1432-0630
Publisher :
Springer, Berlin, Germany
Volume :
90
Issue :
2
Pages :
237-241
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
CGRI - Commissariat général aux Relations internationales [BE]
MNiSW - Polish Ministry of Science and Higher Education [PL]
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Kasa Mianowskiego (Poland)
Commentary :
The original publication is available at http://springerlink.com/content/a61u73m710512760/.
Available on ORBi :
since 17 September 2009

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