论文标题
旋转轨道启用了手性自旋纹理的全电动读数
Spin-orbit enabled all-electrical readout of chiral spin-textures
论文作者
论文摘要
手性和拓扑是密切相关的基本概念，在大量探索中，可以将自旋文字作为信息技术中的潜在磁性局部建立。但是，这种野心受到抑制，因为手性属性的电读取是高度不平凡的，而常规电流垂直于平面（CPP）感应设备。在这里，我们从广泛的第一原理模拟和多个散射扩展中证明了手性自旋混合磁磁力（C-XMR）的出现，可以使高效的全电子读数分别对一维磁性状态的手性和螺旋性分别读取。与与新揭示的非本地旋转混合各向异性MR（X-AMR）相关的二次依赖性相比，它与自旋轨道耦合线性。这种运输效应是在各种非连续性磁性状态（自旋 - 螺旋和天空中）系统化的，并将其与未透明的旋转轨道无关的多站点磁路线抗性进行了比较。由于它们在随时可用的阅读设备中的简单实现，因此提出的磁性含量提供了令人兴奋和决定性的成分，可以用全电动探索拓扑和手性磁性物体的丰富物理学。
Chirality and topology are intimately related fundamental concepts, which are heavily explored to establish spin-textures as potential magnetic bits in information technology. However, this ambition is inhibited since electrical reading of chiral attributes is highly non-trivial with conventional current perpendicular-to-plane (CPP) sensing devices. Here we demonstrate from extensive first-principles simulations and multiple scattering expansion the emergence of the chiral spin-mixing magnetoresistance (C-XMR) enabling highly efficient all-electrical readout of the chirality and helicity of respectively one- and two-dimensional magnetic states of matter. It is linear with spin-orbit coupling in contrast to the quadratic dependence associated with the newly unveiled non-local spin-mixing anisotropic MR (X-AMR). Such transport effects are systematised on various non-collinear magnetic states -- spin-spirals and skyrmions -- and compared to the uncovered spin-orbit-independent multi-site magnetoresistances. Owing to their simple implementation in readily available reading devices, the proposed magnetoresistances offer exciting and decisive ingredients to explore with all-electrical means the rich physics of topological and chiral magnetic objects.
