Wiggling Skyrmions Confined in a Linear Potential Well,Physica Status Solidi-Rapid Research Letters

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Wiggling Skyrmions Confined in a Linear Potential Well
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2020-05-26 , DOI: 10.1002/pssr.202000214
Rongzhi Zhao _{1,

2} , Chenglong Hu _{1,

2} , Lianze Ji _{1,

2} , Wenchao Chen ₂ , Xuefeng Zhang _{1,

2}

Affiliation

The motion of skyrmions in confined geometry has promising potential for the next generation spintronics in information processing. However, the existence of the edge can affect the trajectory of motion by confining skyrmions to a potential well. Herein, a wiggling behavior of skyrmions in a magnetic nanodot with the average velocity of 6 m s⁻¹ under zero magnetic field is presented, and the coupling of motion and breathing of skyrmions in the absence of spin‐transfer‐torque is found. Such a motion of skyrmions can physically originate from the magnetostatic interaction between the edge and the skyrmions and can also be manipulated by controlling the ratio of D_s/D₀ (<0.3) under perpendicular static magnetic field, where D_s and D₀ are skyrmions diameter and nanodots diameter, respectively.

中文翻译：

限制在线性势阱中的摆动Skyrmions

天体离子在受限几何形状中的运动对于下一代自旋电子学在信息处理中具有广阔的发展潜力。但是，边缘的存在会通过将天体约束到势阱中而影响运动轨迹。在此，提出了在零磁场下平均速度为6 m s ^-1的磁性纳米点中天体离子的摆动行为，并且发现了在没有自旋传递转矩的情况下天体离子的运动与呼吸的耦合。天体离子的这种运动可以物理地起源于边缘和天体离子之间的静磁相互作用，也可以通过控制垂直静磁场下的D _s / D ₀（<0.3）的比率来控制，D _s和D ₀分别是天体直径和纳米点直径。

更新日期：2020-05-26

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