标题： 一种在反铁磁纳米条中的基于磁振子的二极管状器件的建议 显示英文标题

标题： A proposal for skyrmion-based diode-like device in antiferromagnetic nanostripe

摘要： 微磁学模拟被用于研究反铁磁纳米条带中单个自旋涡旋的动力学，该纳米条带具有空间设计的磁性特性。 本研究调查了在具有增强磁各向异性的梯形区域工程化处理的反铁磁纳米条带中的自旋涡旋运动，通过选择性地引导自旋涡旋运动实现二极管-like 功能。 我们的研究结果表明，自旋涡旋可以在一个方向上跨越这些障碍物，而在相反方向上被阻挡，模仿二极管行为。 详细分析了几何参数，如梯形障碍物的倾斜角度，如何影响自旋涡旋运动和器件效率。 此外，我们揭示了电流密度和各向异性之间的最佳组合对于在纳米条带中实现高效自旋涡旋传输至关重要，而不会发生反向运动或湮灭。 这项工作推动了基于自旋涡旋的器件在自旋电子学应用中的发展。 它为设计利用受控拓扑动力学的结构提供了有价值的见解。 显示英文摘要

摘要： Micromagnetic simulations were employed to investigate the dynamics of a single skyrmion within an antiferromagnetic nanostripe with spatially engineered magnetic properties. This study investigates skyrmion motion within an antiferromagnetic nanostripe engineered with trapezoidal regions of enhanced magnetic anisotropy, enabling diode-like functionality by selectively directing skyrmion movement. Our findings demonstrate that skyrmions can cross these barriers in one direction while being obstructed in the reverse direction, mimicking diode behavior. A detailed analysis is presented on how geometric parameters, such as the inclination angle of the trapezoidal barriers, impact skyrmion motion and device efficacy. Additionally, we reveal that an optimal combination of current density and anisotropy is essential to facilitate efficient skyrmion transport through the nanostripe without reverse movement or annihilation. This work advances the development of skyrmion-based devices for spintronic applications. It provides valuable insights into designing structures that harness controlled topological dynamics