Abstract
In this paper, we investigate the effect of nonmagnetic YSZ and magnetic Fe3O4 addition on the magnetocaloric properties of the La0.67Ca0.33MnO3 composite. The temperature dependences of the magnetization for pure LCMO and the impurity doped LCMO composite upon 0.1, 0.3, and 1 T magnetic field were simulated. By the help of the phenomenological model, magnetic entropy change and specific heat for magnetic field variation are predicted. The values of maximum magnetic entropy change, full-width at half-maximum, and relative cooling power were calculated at several magnetic fields. The ΔS M value is 2.45, 2.39, and 5.58 J kg−1 K−1 at 1 T for pristine LCMO, LCMO/YSZ, and LCMO/Fe3O4, respectively.
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This study was supported by the Tunisian Ministry of Higher Education and Scientific Research.
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M’nassri, R., Cheikhrouhou, A. Magnetocaloric Effect in Different Impurity Doped La0.67Ca0.33MnO3 Composite. J Supercond Nov Magn 27, 421–425 (2014). https://doi.org/10.1007/s10948-013-2278-1
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DOI: https://doi.org/10.1007/s10948-013-2278-1