具有空间调制单轴各向异性的手性铁磁薄膜中的天电离状态的可能结构。

IF 2.3 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

Journal of Physics: Condensed Matter Pub Date : 2024-11-15 DOI:10.1088/1361-648X/ad8ea1

R M Vakhitov, A A Akhmetova, M A Filippov

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引用次数: 0

摘要

本文基于微磁建模，研究了中心有柱状缺陷的单轴多层圆盘中可能存在的涡状不均匀体（包括 kπ-skyrmions k = 0、1、2、3、4）的稳定条件、结构和性质。确定了它们取决于 Dzyaloshinskii-Moriya 相互作用、磁各向异性大小和缺陷参数的稳定性图。发现了可能出现在此类样品中的新型涡旋状不均匀性。所获得的数据可用于创建磁天幕的人工成核、捕获和钉扎区域，从而提高自旋电子逻辑器件中数据存储的可靠性。

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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Possible structures of skyrmion states in chiral ferromagnetic films with spatially modulated uniaxial anisotropy.

In this paper, the stabilization conditions, structure, and properties of possible vortex-like inhomogeneities, including kπ-skyrmionsk= 0, 1, 2, 3, 4, in a uniaxial multilayer disk with a columnar defect in the center are investigated based on micromagnetic modeling. Their stability diagrams depending on the Dzyaloshinskii-Moriya interaction, the magnitude of magnetic anisotropy and the defect parameters are determined. New types of vortex-like inhomogeneities that can arise in such samples are found. The obtained data can be used to create artificial regions of nucleation, capture and pinning of magnetic skyrmions, which can provide greater reliability of data storage in spintronic logical devices.

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来源期刊

Journal of Physics: Condensed Matter 物理-物理：凝聚态物理

CiteScore

5.30

自引率

7.40%

发文量

1288

审稿时长

2.1 months

期刊介绍： Journal of Physics: Condensed Matter covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of materials preparation or properties of materials without novel condensed matter content will not be accepted.