FM/AFM双层中的交换偏置研究：原子模拟

Q2 Physics and Astronomy

Physics Open Pub Date : 2025-04-14 DOI:10.1016/j.physo.2025.100265

Junaid Ul Ahsan

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引用次数: 0

摘要

利用Landau-Lifshitz-Gilbert方程和Heisenberg自旋模型模拟了铁磁体/反铁磁体双层体系中的交换偏置（EB）效应，其中界面附近的反铁磁体层通过扰乱AFM顺序而被改变。由于原子力显微镜秩序的干扰，双分子层的M-H环变宽，也变得不对称。因此，人工异质结构表现出偏置场，为科学应用提供了一种调整交换偏置效应的方法。

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Exchange bias study in FM/AFM bilayers: Atomistic simulations

The exchange bias (EB) effect has been studied through simulations utilizing the Landau–Lifshitz–Gilbert equation and the Heisenberg spin model in a Ferromagnet/Antiferromagnet bilayer system where the Antiferromagnet layer near the interface is modified by disturbing the AFM order. As an immediate effect of the disturbance of AFM order, the M-H loop of the bilayer broadens and also becomes asymmetric. Therefore the artificial heterostructure exhibits the bias field, suggesting a way to tune the exchange bias effect for scientific applications.

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来源期刊

Physics Open Physics and Astronomy-Physics and Astronomy (all)

CiteScore

3.20

自引率

0.00%

发文量

审稿时长

9 weeks