标题： 标量自旋手性霍尔效应 显示英文标题

标题： Scalar Spin Chirality Hall Effect

摘要： 标量自旋手性，它表征非共面自旋结构的基本单元，在磁性材料丰富的手性物理中起着重要作用。 特别是，过去二十年的深入研究已经表明，标量自旋手性是固态系统中各种新颖霍尔输运的来源，为在凝聚态物理中引发手性现象提供了一条主要途径。 然而，在所有先前的研究中，标量自旋手性都被视为静态背景，在材料的输运特性中仅起到被动作用。 标量自旋手性本身是否能表现出类似霍尔的输运，仍然是一个开放问题。 在本工作中，我们证明答案是肯定的：在外部偏置下，标量自旋手性在Kagome铁磁体和反铁磁体中被霍尔输运，产生我们称之为标量自旋手性霍尔效应的现象。 值得注意的是，即使没有自旋轨道耦合，这种效应也存在。 标量自旋手性霍尔效应的分析理论得到了原子尺度自旋模拟的验证。 我们的发现要求我们摒弃传统的假设，即标量自旋手性是一个被动背景，以发现标量自旋手性在输运特性中的主动作用。 显示英文摘要

摘要： The scalar spin chirality, which characterizes the fundamental unit of noncoplanar spin structures, plays an important role in rich chiral physics of magnetic materials. In particular, the intensive research efforts over the past two decades have demonstrated that the scalar spin chirality is the source of various novel Hall transports in solid-state systems, offering a primary route to bring about chiral phenomena in condensed matter physics. However, in all of the previous studies, the scalar spin chirality has been given as a stationary background, serving only a passive role in the transport properties of materials. It remains an open question whether or not the scalar spin chirality itself can exhibit a Hall-type transport. In this work, we show that the answer is yes: The scalar spin chirality is Hall-transported in Kagome ferromagnets and antiferromagnets under an external bias, engendering a phenomenon which we dub the scalar spin chirality Hall effect. Notably, this effect is present even in the absence of any spin-orbit coupling. The analytical theory for the scalar spin chirality Hall effect is corroborated by atomistic spin simulations. Our findings call for the need to lift the conventional assumption that the scalar spin chirality is a passive background in order to discover the active roles of the scalar spin chirality in transport properties.