论文标题
磁性晶格的排序阶段阶段
Late stages in the ordering of magnetic skyrmion lattices
论文作者
论文摘要
通过广泛的langevin分子动力学模拟,对相互作用的磁空的后期排序进行了数值研究。定义Skyrmion位移,以改变在Voronoi Tesselation作为事件中获得的细胞的连通性,我们研究事件直方图是自准备系统以及连续事件的直方图以及将这两个事件分开的时间的函数以来所经过的时间的函数。这些直方图在Skyrmion物质的订购过程中为瞬态特性提供了独特的见解,它显示了一种特征行为,使Magnus-Force主导的政权(Magnus Force加速了放松过程)可以与噪声主导的态度区分开来,在那里Magnus力量增强了热噪声的影响。在Magnus-Force主导的制度中,不同的直方图显示了幂律的尾巴,其指数取决于马格努斯力的强度。
The late-stage ordering of interacting magnetic skyrmions is studied numerically through extensive Langevin molecular dynamics simulations. Defining skyrmion displacements that change the connectivity of cells obtained in a Voronoi tesselation as events, we investigate event histograms as a function of the time elapsed since preparing the system as well as the histograms of consecutive events as a function of the time separating these two events. These histograms, which provide unique insights into the transient properties during the ordering process of skyrmion matter, show a characteristic behavior that allows the Magnus-force dominated regime, where the Magnus force accelerates the relaxation process, to be distinguished from the noise-dominated regime, where the Magnus force enhances the effects of thermal noise. In the Magnus-force dominated regime the different histograms display power-law tails with exponents that depend on the strength of the Magnus force.