Study of Structural and Magnetic Properties of Antiferromagnetic Cr2MnGe Heusler Alloy

IF 1.1 4区物理与天体物理 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Magnetics Letters Pub Date : 2025-04-14 DOI:10.1109/LMAG.2025.3560867

Karthik G;Shipra Das;T. R. Naveen Kumar;K Ravichandran

引用次数: 0

Abstract

Engineered Heusler alloys have potential applications in spintronic devices owing to their fascinating properties. Therefore, we synthesized a ternary Cr₂MnGe Heusler alloy using a simple solid-state reaction. Rietveld refinement of the X-ray diffraction data confirmed the presence of a cubic Fd-3m structure, specifically the B32a disorder Heusler phase with a space group number of 227. The microstructure and chemical composition of the Cr₂MnGe sample confirmed agglomeration and adherence to the nominal composition of the Heusler alloy. Furthermore, the Cr₂MnGe sample exhibits antiferromagnetic behavior with ferromagnetic clusters due to the site swapping of Cr–Mn and Cr–Ge, which contributes to a magnetic signal in the zero-field-cooled and field-cooled measurements. These findings highlight the potential of Cr₂MnGe for application in magnetic tunnel junctions and spin valves, contributing to advancements in spintronic technologies.

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反铁磁Cr2MnGe Heusler合金的结构和磁性能研究

工程Heusler合金由于其优异的性能在自旋电子器件中具有潜在的应用前景。因此，我们采用简单的固相反应合成了一种三元Cr2MnGe Heusler合金。x射线衍射数据的Rietveld细化证实了立方Fd-3m结构的存在，特别是空间群数为227的B32a无序Heusler相。Cr2MnGe样品的显微组织和化学成分证实了Heusler合金的团聚和附属性。此外，由于Cr-Mn和Cr-Ge的位置交换，Cr2MnGe样品表现出具有铁磁团簇的反铁磁行为，这有助于在零场冷却和场冷却测量中产生磁信号。这些发现突出了Cr2MnGe在磁隧道结和自旋阀中的应用潜力，有助于自旋电子技术的进步。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Magnetics Letters PHYSICS, APPLIED-

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： IEEE Magnetics Letters is a peer-reviewed, archival journal covering the physics and engineering of magnetism, magnetic materials, applied magnetics, design and application of magnetic devices, bio-magnetics, magneto-electronics, and spin electronics. IEEE Magnetics Letters publishes short, scholarly articles of substantial current interest. IEEE Magnetics Letters is a hybrid Open Access (OA) journal. For a fee, authors have the option making their articles freely available to all, including non-subscribers. OA articles are identified as Open Access.