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- W2783648379 abstract "We have investigated the correlation between magnetocaloric and electrical properties of La0.47Pr0.2Pb0.33MnO3 perovskite prepared using the sol–gel method. Rietveld analysis of X-ray diffraction (XRD) pattern shows pure crystalline phase with rhombohedral R3¯c structure. Magnetic entropy change, relative cooling power (RCP) and specific heat were predicted from M(T, μ0H) data at different magnetic fields with the help of the phenomenological model. The magnetic entropy change reaches a maximum value | ΔSMmax| of about 3.96 J kg−1 K−1 for μ0H = 5 T corresponding to RCP of 183 J kg−1. These values are relatively higher, making our sample a promising candidate for the magnetic refrigeration. Electrical-resistivity measurements were well fitted with the phenomenological percolation model, which is based on the phase segregation of ferromagnetic-metallic clusters and paramagnetic-semiconductor regions. The temperature and magnetic field dependences of resistivity data, ρ(T, μ0H), allowed us to determine the magnetic entropy change (ΔSM). Results show that the as-obtained magnetic entropy change values are similar to those determined from the phenomenological model." @default.
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- W2783648379 date "2018-01-16" @default.
- W2783648379 modified "2023-10-14" @default.
- W2783648379 title "Correlation between magnetocaloric and electrical properties based on phenomenological models in La<sub>0.47</sub>Pr<sub>0.2</sub>Pb<sub>0.33</sub>MnO<sub>3</sub> perovskite" @default.
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- W2783648379 doi "https://doi.org/10.1080/01411594.2018.1424336" @default.
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