Enhancement of the magnetocaloric properties of a composite based on Pr0.5Sr0.5MnO3 and Pr0.4Gd0.1Sr0.5MnO3 compounds

被引：2

作者：

Kharrat, A. Ben Jazia ^{[1
]}

Boujelben, W. ^{[1
]}

机构：

[1] Univ Sfax, Fac Sci Sfax, Lab Phys Mat, BP 1171, Sfax 3000, Tunisia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2024年 / 1003卷

关键词：

Manganite compound; Composite; Magnetocaloric effect; Critical behaviour; EQUATION-OF-STATE; GD;

D O I：

10.1016/j.jallcom.2024.175701

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present study, we investigate the magnetocaloric properties of Pr0.5Sr0.5MnO3 and Pr0.4Gd0.1Sr0.5MnO3 polycrystalline compounds, which were elaborated via the solid-state reaction method, to prepare a composite with a high relative cooling power (RCP). Theoretical calculations were used to predict the proportions of the selected sample. Our composite was found to be active over a very wide temperature range and is characterized by an improvement in the RCP. The obtained results allow us to conclude that our compound may be a promising candidate for magnetic refrigeration. In addition, the critical behavior of our selected sample was studied, and the critical exponents were determined. All results were discussed.

引用

页数：10

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