| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Reis, Ms
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2019Multicaloric effect in a multiferroic composite of Gd-5(Si,Ge)(4) microparticles embedded into a ferroelectric PVDF matrixcitations
- 2018Lanthanum Dilution Effects on the Giant Magnetocaloric Gd5Si1.8Ge2.2 Compoundcitations
- 2009Percolation processes and spin-reorientation of PrNi5-xCoxcitations
- 2006Preparation and properties of new superconductor material MgB2
- 2006Tuning of magnetocaloric effect in ferromagnetic La-Sr manganites through Er and Eu doping
Places of action
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article
Tuning of magnetocaloric effect in ferromagnetic La-Sr manganites through Er and Eu doping
Abstract
Colossal magnetoresistive manganites have attracted renewed interest in research due to their potential application as active magnetic materials in magnetic refrigeration tech- niques. For optimal thermal performace, a careful control of the efficiency peak at the Curie temperature (TC) is needed. La0.70Sr0.30MnO3 (LSMO) is an optimally doped ferromagnetic material manganite that presents considerable magnetocaloric effect. However, the operating temperature (TC) of LSMO is near 375 K, which limits it's applicability in room-temperature refrigeration. In light of this, we have studied solid state and sol-gel produced samples of the LSMO system where La is substituted by Er and Eu, and show that the operating temperature can be significantly controlled by substitution to values near room temperature and also that the relative cooling power (RCP) of Er and Eu substituted samples is significantly increased. The regular dependence of TC with the amount of rare-earth substitution and the increase in RCP allow the creation of composites or thermal cascades of chemically similar compounds to produce an active magnetic element with a wide temperature interval of operation (from 260 to 370 K). This work presents relatively cost-efficient materials for application in room-temperature magnetic cooling.