Yao Xiaoyan, Hu Di, Dong Shuai
School of Physics, Southeast University, Nanjing 211189, P. R. China.
iScience. 2023 Mar 2;26(4):106311. doi: 10.1016/j.isci.2023.106311. eCollection 2023 Apr 21.
The intrinsic magnetism observed in two-dimensional (2D) van der Waals (vdW) materials provides a unique opportunity for exploring the 2D topological magnetic textures, in particular skyrmionic magnetic textures (SMTs) including skyrmion and its topological equivalents. Since the experimental discovery of skyrmions in the 2D vdW materials and their heterostructures, a critical challenge lies in the control of these SMTs to translate their intriguing features into spintronic applications. Here, we review the recent experimental and theoretical progress on the modulations of SMTs in 2D vdW monolayer materials and their heterostructures. Besides well-established basic modulation factors including temperature, magnetic field and sample thickness, we present the experimental realization of mobility and transition driven by electric current, and the theoretical prediction of diverse magnetoelectric modulations by electric field. Considering the 2D character of vdW layered materials, strain and stacking style are also efficient approaches to tune the magnetic textures.
在二维（2D）范德华（vdW）材料中观察到的本征磁性为探索二维拓扑磁结构提供了独特的机会，特别是包括斯格明子及其拓扑等效物的斯格明子磁结构（SMTs）。自从在二维vdW材料及其异质结构中通过实验发现斯格明子以来，一个关键挑战在于控制这些SMTs，以便将其引人入胜的特性转化为自旋电子学应用。在这里，我们回顾了二维vdW单层材料及其异质结构中SMTs调制的近期实验和理论进展。除了包括温度、磁场和样品厚度等已确立的基本调制因素外，我们还介绍了由电流驱动的迁移率和转变的实验实现，以及电场对各种磁电调制的理论预测。考虑到vdW层状材料的二维特性，应变和堆叠方式也是调节磁结构的有效方法。
