论文标题
由周期性基材调制的二维Yukawa固体中的动力学重点效应
Dynamical commensuration effect in a two-dimensional Yukawa solid modulated by periodic substrates
论文作者
论文摘要
使用langevin动力学模拟研究了在纵向方向上由恒定力驱动的二维尘埃等离子体固体的横向stresseverning动力学。在增加比率（颗粒与底物电位孔的数量比）的增加期间，观察到关键横向脱位力的非单调变化趋势。发现关键的横向繁殖力的局部最大值和最小值分别对应于动态的相应和不相当的条件。从稳定的一维通道粒子轨迹和高度有序的结构中也清楚地表明了动力学的相应效应，但是，粒子的轨迹和结构在不稳定的条件下都更加无序。临界横向滴定力的非单调变化归因于各种重量比率下晶格结构的稳定性。
Transverse depinning dynamics of a periodic-square-substrate modulated two-dimensional dusty plasma solid driven by a constant force in the longitudinal direction are investigated using Langevin dynamical simulations. During the increase of the commensuration ratio (the number ratio of particles to substrate potential wells), the nonmonotonic variation trend of the critical transverse depinning force is observed. It is found that the local maxima and minima of the critical transverse depinning force just correspond to the dynamical commensurate and incommensurate conditions, respectively. The dynamical commensurate effect is also clearly exhibited from the stable one-dimensional channel particle trajectories and the highly ordered structure, however, both the particle trajectories and the structure are more disordered under the incommensurate conditions. The nonmonotonic variation of the critical transverse depinning force is attributed to the stability of the lattice structure under various commensuration ratios.
