Tailoring Helicity Angle of Twisted Skyrmions in Multilayered Nanostructures,Physica Status Solidi-Rapid Research Letters

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Tailoring Helicity Angle of Twisted Skyrmions in Multilayered Nanostructures
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2021-04-30 , DOI: 10.1002/pssr.202100076
Lan Bo ₁ , Chenglong Hu _{1,

2} , Lianze Ji _{1,

2} , Lingwen Kong ₁ , Rongzhi Zhao _{1,

2} , Xuefeng Zhang _{1,

2}

Affiliation

Twisted skyrimons (TSs) are intermediate states between Bloch skyrmions and Néel skyrmions, and can emerge in multilayered systems due to the competition between Dzyaloshinskii–Moriya interaction and magnetic dipole–dipole interaction. Herein, TSs are investigated in terms of helicity angle variation and layer dependence in both three layer and general multilayer nanostructures. The tailoring of helicity angle from 0 to π is achieved by stacking the number of magnetic layers and controlling the relative position of each layer. In addition, the precise spatial range where TSs exist stably and the influence of layer and spacer thickness are also discussed. The results provide a fundamental understanding of TSs in multilayered nanostructures, which is significant for the development of skyrmion-based devices.

中文翻译：

调整多层纳米结构中扭曲 Skyrmions 的螺旋角

Twisted skyrimions (TSs) 是 Bloch skyrmions 和 Néel skyrmions 之间的中间状态，由于 Dzyaloshinskii-Moriya 相互作用和磁偶极-偶极相互作用之间的竞争，它可以出现在多层系统中。在此，根据三层和一般多层纳米结构中的螺旋角变化和层依赖性研究了 TS。螺旋角从 0 到π的剪裁是通过堆叠磁性层的数量并控制每层的相对位置来实现的。此外，还讨论了TSs稳定存在的精确空间范围以及层和间隔层厚度的影响。该结果提供了对多层纳米结构中 TS 的基本理解，这对于开发基于斯格明子的器件具有重要意义。

更新日期：2021-04-30

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