磁性纳米轨道中相互作用斯格明子的动力学
Dynamics of interacting skyrmions in magnetic nano-track
AI总结：
本研究针对磁性纳米轨道中多斯格明子操控需求，探究受限器件中两个相互作用斯格明子的动力学特性，揭示了其与单斯格明子不同的尺寸演化、塌缩阈值及双步湮灭机制，为斯格明子器件应用提供理论支撑。
摘要：
在纳米线中操控多个斯格明子（skyrmion）是其应用于赛道存储器（racetrack memory）或神经形态计算的关键。本文报道了受限器件中两个相互作用斯格明子的动力学行为，并与单斯格明子情形进行了对比。尽管两个斯格明子都会在边缘附近收缩并沿螺旋路径运动，但二者行为存在差异：由于前导斯格明子处于边缘与尾随斯格明子之间，其尺寸进一步减小，且在比单斯格明子情形更低的电流密度下发生塌缩。电流密度更高时，两个斯格明子都会湮灭，其中前导斯格明子通过核塌缩机制消失，随后尾随斯格明子通过泡塌缩机制消失。
英文摘要：
Controlling multiple skyrmions in nanowires is important for their implementation in racetrack memory or neuromorphic computing. Here, we report on the dynamical behavior of two interacting skyrmions in confined devices with a comparison to a single skyrmion case. Although the two skyrmions shrink near the edges and follow a helical path, their behavior is different. Because the leading skyrmion is between the edge and the trailing one, its size is reduced further and collapses at a lower current density compared to the single skyrmion case. For higher current density, both skyrmions are annihilated with a core-collapse mechanism for the leading one followed by a bubble-collapse mechanism for the trailing one.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
