Reference : Magnetocaloric and transport study of poly- and nanocrystalline composite manganites La0...
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/129246
Magnetocaloric and transport study of poly- and nanocrystalline composite manganites La0.7Ca0.3MnO3/La0.8Sr0.2MnO3
English
Pekala, M [University of Warsaw > > > >]
Pekala, K [Warsaw Technical University > > > >]
Drozd, V [Florida International University, Miami, USA > Center for the Study Matter at Extreme Conditions > > >]
Staszkiewicz, K [University of Warsaw > > > >]
Fagnard, Jean-François [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques >]
Vanderbemden, Philippe mailto [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques >]
2012
Journal of Applied Physics
American Institute of Physics
112
023906
Yes (verified by ORBi)
International
0021-8979
Melville
NY
[en] magnetocaloric effect ; manganites ; magnetic measurements
[en] Magnetocaloric and transport properties are reported for novel poly- and nanocrystalline double composite manganites, La0.8Sr0.2MnO3/La0.7Ca0.3MnO3, prepared by the sol-gel method. Magnetic field dependence of magnetic entropy change is found to be stronger for the nano- than the polycrystalline composite. The remarkable broadening of the temperature interval, where the magnetocaloric effect occurs in poly- and nanocrystalline composites, causes the relative cooling power (RCP(S)) of the nanocrystalline composite to be reduced by only 10% compared to the Sr based polycrystalline phase. The RCP(S) of the polycrystalline composite becomes remarkably enhanced. The low temperature magnetoresistance is enhanced by 5% for the nanostructured composite.

© 2012 American Institute of Physics
Services Universitaires Pour la Recherche et les Applications Technologiques de Matériaux Électro-Céramiques, Composites, Supraconducteurs - SUPRATECS
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Researchers ; Professionals
http://hdl.handle.net/2268/129246
10.1063/1.4739262
http://jap.aip.org/resource/1/japiau/v112/i2/p023906_s1
Copyright (2012) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
The following article appeared in J. Appl. Phys. 112, 023906 (2012) and may be found at http://jap.aip.org/resource/1/japiau/v112/i2/p023906_s1.

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