Ce(Fe0.975Cr0.025)2化合物中的磁ocaloric效应

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Bulletin of Materials Science Pub Date : 2024-05-28 DOI:10.1007/s12034-024-03183-7

Rakesh Das, S K Srivastava

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引用次数: 0

摘要

固态制冷装置具有克服使用与温室效应有关的气体或危险化学品的潜力。这些设备大多基于磁致效应（MCE）工作。Ce(Fe0.975Cr0.025)2是研究顺磁（PM）-铁磁（FM；二阶）转变和FM-反铁磁（一阶）转变产生的磁致效应的一种令人着迷的材料。在本研究中，我们研究了在氩气环境中通过弧熔法制备的 Ce(Fe0.975Cr0.025)2 化合物的 MCE。根据 M-H 曲线计算了磁熵变化（∆SM）和相对冷却功率，从而确定了 MCE 的特征。研究发现，直接和反向 MCE 与该化合物中两种不同的磁转变有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Magnetocaloric effect in Ce(Fe0.975Cr0.025)2 compound

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Magnetocaloric effect in Ce(Fe0.975Cr0.025)2 compound

A solid-state refrigerator device has the potential to overcome the use of greenhouse effect-related gases or hazardous chemicals. Most of these devices work on the basis of magnetocaloric effect (MCE). Ce(Fe_0.975Cr_0.025)₂ is an engrossing material to study MCE originating from paramagnetic (PM)–ferromagnetic (FM; second-order) transition and FM–antiferromagnetic (first-order) transition. In the present work, the MCE of Ce(Fe_0.975Cr_0.025)₂ compound, prepared in Arc melting in an argon atmosphere, has been studied. Magnetic entropy change (∆_SM) and the relative cooling power have been calculated from the M–H curves to characterize the MCE. Direct and inverse MCE are found to be linked with two different magnetic transitions in this compound.

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来源期刊

Bulletin of Materials Science 工程技术-材料科学：综合

CiteScore

3.40

自引率

5.60%

发文量

209

审稿时长

11.5 months

期刊介绍： The Bulletin of Materials Science is a bi-monthly journal being published by the Indian Academy of Sciences in collaboration with the Materials Research Society of India and the Indian National Science Academy. The journal publishes original research articles, review articles and rapid communications in all areas of materials science. The journal also publishes from time to time important Conference Symposia/ Proceedings which are of interest to materials scientists. It has an International Advisory Editorial Board and an Editorial Committee. The Bulletin accords high importance to the quality of articles published and to keep at a minimum the processing time of papers submitted for publication.