标题： 电流诱导的布洛赫壁二元子动力学 显示英文标题

标题： Current-induced Dynamics of Bloch Domain-wall Bimerons

摘要： 畴壁双半子是通过将双半子嵌入铁磁材料中的畴壁内形成的复合拓扑结构，这些材料具有面内各向异性。 这些混合纹理由于在赛道存储器应用中的潜力，最近引起了广泛关注。 在这项工作中，我们系统地研究了单畴壁双半子和双半子链在自旋转移扭矩（STT）和自旋轨道扭矩（SOT）作用下的电流驱动动力学。 我们发现，当自旋电流注入或极化方向垂直于畴壁时，双半子霍尔效应促进了沿畴壁的有效运动。 相比之下，注入或极化方向平行于畴壁的自旋电流抑制了横向运动，导致双半子 霍尔角显著减小。 这种各向异性响应对于STT和SOT驱动机制都存在。 此外，我们发现增加畴壁内的双半子数量会降低它们的整体移动性。 这些结果为畴壁双半子的动力学提供了关键见解，并为它们在基于双半子的自旋电子器件中的集成提供了指导。 显示英文摘要

摘要： Domain-wall bimerons are composite topological structures formed by embedding bimerons within domain walls in ferromagnets with in-plane anisotropy. These hybrid textures have recently attracted significant attention due to their promise for racetrack memory applications. In this work, we systematically investigate the current-driven dynamics of single domain-wall bimerons and bimeron chains under spin-transfer torque (STT) and spin-orbit torque (SOT). We show that when the spin current is injected or polarized perpendicular to the domain wall, the bimeron Hall effect facilitates efficient motion along the wall. In contrast, spin currents injected or polarized parallel to the wall suppress transverse motion, leading to a significant reduction in the bimeron Hall angle. This anisotropic response is observed for both STT and SOT driving mechanisms. Furthermore, we find that increasing the number of bimerons within a domain wall diminishes their collective mobility. These results provide key insights into domain-wall bimeron dynamics and offer guidance for their integration into bimeron-based spintronic devices.