As spins move through a chiral electric field, the resulting spin current can acquire chirality through a spin–orbit interaction. Such spin currents are highly useful in creating spin–orbit torques that can be used to manipulate chiral topological magnetic excitations, for example, chiral magnetic domain walls or skyrmions. When the chiral domain walls form composite domain walls, via an antiferromagnetic exchange coupling, novel phenomena, including an exchange coupling torque and domain wall drag, are observed. Here, we review recent progress in the generation and functionalities of spin currents derived from or acting on chiral structures. By bringing together advances in chiral molecules, chiral magnetic structures and chiral topological matter, we provide an outlook towards potential applications.

当自旋通过手性电场移动时，产生的自旋电流可以通过自旋-轨道相互作用获得手性。这种自旋电流在产生可用于操纵手性拓扑磁激发（例如，手性磁畴壁或天体离子）的自旋轨道转矩中非常有用。当手性畴壁通过反铁磁交换耦合形成复合畴壁时，观察到包括交换耦合转矩和畴壁阻力的新现象。在这里，我们回顾了自手性结构衍生或作用于手性结构的自旋电流的产生和功能的最新进展。通过将手性分子，手性磁性结构和手性拓扑物质方面的进展综合起来，我们提供了潜在应用前景。