标题： 约束在二维几何中的自旋涡的惯性 显示英文标题

标题： Inertia in skyrmions confined to one-dimensional geometries

摘要： 磁涡旋通常被认为具有零质量。 相反，我们表明，受限于一维几何结构的涡旋由于涡旋霍尔效应和系统的弹性共同作用，通常会获得质量（惯性）。 我们研究了无序简化周期模型中涡旋的质量行为。 我们表明，涡旋质量会降低临界脱钉力，并在涡旋速度与电流曲线中导致阶梯状行为，这最近在实验中被观察到。 有限质量还可能导致速度与电流曲线中的滞后现象。 显示英文摘要

摘要： Magnetic skyrmions are conventionally attributed to having zero mass. In contrast, we show that skyrmions confined to one-dimensional geometries generically acquire mass (inertia) due to the combined effects of the skyrmion Hall effect and the elasticity of the system. We investigate the massive behavior of the skyrmion for a simplified periodic model of the disorder. We show that skyrmion mass lowers the critical depinning force and leads to a step-like behavior in the skyrmion velocity-vs-current curves, which were recently observed in experiments. Finite mass could also lead to hysteresis in the velocity-vs-current curves.