用于磁制冷应用的半休斯勒合金 MnCoBi 的磁性和磁致性理论研究

IF 2.3 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physics Letters A Pub Date : 2024-10-28 DOI:10.1016/j.physleta.2024.130007

E.M. Jalal , H. Kerrai , H. Saadi , N. Hachem , A. Hasnaoui , M. El Bouziani

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引用次数: 0

摘要

在这项研究中，我们利用平均场近似法研究了锰钴铍半赫斯勒合金的磁性、磁致性和磁滞特性。我们首先详细介绍了钴锰合金的模型、方法和磁稳定性。我们的分析表明居里温度 (TC) 为 459 K，这与之前的研究一致。此外，在 1.4 T 的外加磁场下，合金的相对冷却功率 (RCP) 为 564.87 J/kg，磁致效应为 19.726 J/kg.K。此外，我们还研究了温度对磁滞行为的影响，发现在 T > TC 时，化合物从铁磁相转变为顺磁相。这些结果表明，锰钴铋半赫斯勒合金可用于各种应用。

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Theoretical investigation of magnetic and magnetocaloric properties of the half-Heusler alloy MnCoBi for magnetic refrigeration applications

In this work, we studied the magnetic, magnetocaloric, and hysteresis properties of the MnCoBi half-Heusler alloy using mean field approximation. We first detailed the model, method, and magnetic stability of MnCoBi. Our analysis revealed a Curie temperature (T_C) of 459 K, which is consistent with previous studies. Additionally, the alloy exhibited a relative cooling power (RCP) of 564.87 J/kg and a magnetocaloric effect of 19.726 J/kg.K at an applied magnetic field of 1.4 T. Furthermore, we examined the influence of temperature on the hysteresis behavior, finding that the compound transitions from a ferromagnetic phase to a paramagnetic phase for T > T_C. These results suggest that the MnCoBi half-Heusler alloy could be useful for various applications.

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来源期刊

Physics Letters A 物理-物理：综合

CiteScore

5.10

自引率

3.80%

发文量

493

审稿时长

30 days

期刊介绍： Physics Letters A offers an exciting publication outlet for novel and frontier physics. It encourages the submission of new research on: condensed matter physics, theoretical physics, nonlinear science, statistical physics, mathematical and computational physics, general and cross-disciplinary physics (including foundations), atomic, molecular and cluster physics, plasma and fluid physics, optical physics, biological physics and nanoscience. No articles on High Energy and Nuclear Physics are published in Physics Letters A. The journal''s high standard and wide dissemination ensures a broad readership amongst the physics community. Rapid publication times and flexible length restrictions give Physics Letters A the edge over other journals in the field.