Effect of titanium substitution on the structural, magnetic and magnetocaloric properties of La0.67Ba0.25Ca0.08MnO3 perovskite manganites

Bourguiba, Marwa; Gdaiem, Mohamed Amara; Chafra, Moez; Hlil, E.K.; Belmabrouk, Hafedh; Bajahzar, Abdullah

doi:10.1007/s00339-019-2665-y

Cited by 10 publications

(1 citation statement)

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“…To verify the nature of the magnetic phase transition, it is necessary that the plots ΔSM(T), measured indifferent µ0H, should collapse on a single curve with a second-order phase transition, which suggested by Franco et al [32,33]. So by analogy with the MCE, the universal phenomenological ∆S ′ curve can be determined by the normalization of −∆S E [34,35]:…”

Section: Simulationmentioning

confidence: 99%

Theoretical Investigation of the Electrocaloric Properties of Lead-free Ferroelectric Ceramic

Kacem

Dhahri

Gdaiem

et al. 2020

Preprint

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BaTi0.91Sn0.09O3 (BST) sample was prepared by the solid-state reaction method. The structural, morphological and electrocaloric properties were studied. The sample crystallized in the tetragonal structure with P4mm space group. Based on mapping image, the sensitivity and spatial resolution of the different elements in our sample were improved. According to the variation of polarization as function of temperature, our sample had a paraelectric-ferroelectric phase transition, around room temperature. The electrocaloric properties of our sample were investigated using theoretical approaches. The important parameters such as maximum entropy change, relative cooling power and full width at half maximum were explained qualitatively. These results make our sample promising candidate for refrigeration domain.

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Section: Simulationmentioning

confidence: 99%