标题： 通过垂直注入自旋电流驱动的畴壁运动实现反铁磁中奈尔矢量的快速反转 显示英文标题

标题： Fast reversal of Néel vectors in antiferromagnets via domain-wall motion driven by vertically injected spin currents

摘要： 在这项工作中，我们研究了在垂直注入自旋流下，薄反铁磁条带中奈尔矢量的180度畴壁（180DWs）的稳定传播特性，其中自旋流具有不同的极化方向。 我们的结果显示，只有那些垂直于条带平面极化的自旋流才能确保180DWs快速且稳定的刚性流动，从而实现反铁磁材料（AFMs）中奈尔矢量的快速反转。 与仅适用于金属反铁磁材料的常规“面内电流”几何结构不同，我们正在研究的“面外电流”布局可以通过量子隧穿效应进一步应用于绝缘反铁磁材料（这在实际应用中更为常见）。 本工作的成果为精细控制金属和绝缘体反铁磁条带中的奈尔矢量提供了途径，并为进一步开发基于这些材料的新型磁性纳米器件奠定了基础。 显示英文摘要

摘要： In this work, we investigate the steady propagation of 180-degree domain walls (180DWs) of N\'{e}el vectors in thin antiferromagnetic strips under perpendicularly injected spin currents with various polarization orientations. Our results show that only spin currents polarized normally to the strip plane guarantee a quick and steady rigid flow of 180DWs, thus realize a fast reversal of N\'{e}el vectors in antiferromagnets (AFMs). Different from the common ``current-in-plane'' geometry which is feasible only for metallic AFMs, our ``current-out-of-plane'' layout under investigation can further apply to insulating AFMs (which are more common in real applications) via quantum tunneling effect. Results from this work paves the way for fine control of N\'{e}el vectors in (both metallic and insulating) AFM strips and further development of novel magnetic nanodevices based on them.