论文标题
铁磁性双歧杆菌的非偏置动力学
Nonreciprocal dynamics of ferrimagnetic bimerons
论文作者
论文摘要
磁性双层是在拓扑上是非平凡的自旋纹理，它可以用作粒子样信息载体。在这里，我们报告了一项关于由自旋电流诱导的非对称铁磁（FIM）bimerons的非偏位动力学的理论研究。 FIM Bimerons具有以每秒公里的速度移动，并且在角动量补偿点上没有显示Skyrmion Hall效应。我们的微磁模拟和分析结果表明，即使系统处于角动量补偿点，旋转电流也能够诱导非偏位转运和FIM Bimeron的漂移运动。通过分析电流诱导的有效场，我们发现非逆转录转运归因于比梅隆结构的不对称性。我们的结果对于理解铁ima虫中Bimeron的物理学很有用，并且可能为构建基于Bimeron的Spintronic设备提供指南。
Magnetic bimerons are topologically nontrivial spin textures in in-plane easy-axis magnets, which can be used as particle-like information carriers. Here, we report a theoretical study on the nonreciprocal dynamics of asymmetrical ferrimagnetic (FiM) bimerons induced by spin currents. The FiM bimerons have the ability to move at a speed of kilometers per second and do not show the skyrmion Hall effect at the angular momentum compensation point. Our micromagnetic simulations and analytical results demonstrate that spin currents are able to induce the nonreciprocal transport and a drift motion of the FiM bimeron even if the system is at the angular momentum compensation point. By analyzing the current-induced effective fields, we find that the nonreciprocal transport is attributed to the asymmetry of the bimeron structure. Our results are useful for understanding the physics of bimerons in ferrimagnets and may provide guidelines for building bimeron-based spintronic devices.
