AI 中文总结
该研究提出过渡金属二硫化物单层中的RKKY相互作用可作为控制手性磁结构的工具，经理论与模拟证实其能改变反铁磁体相图，为二维范德华异质结构的相关研究提供了新控制手段。
AI 中文摘要
我们提出将过渡金属二硫化物单层中的Ruderman-Kittel-Kasuya-Yosida（RKKY）相互作用作为产生和控制手性磁结构的工具。研究表明，在自旋-谷锁定区域，RKKY相互作用表现为Dzyaloshinskii-Moriya耦合，其有效自旋旋转周期恰好等于三倍晶格常数。通过平均场理论和经典蒙特卡罗模拟，我们证明该相互作用会定性改变原子级薄反铁磁体的相图：即使RKKY相互作用很弱，它也会通过选择单一手性值破坏与手性相关的相变，同时将与自旋取向相关的Berezinskii-Kosterlitz-Thouless相变移至更高温度。我们认为，介导RKKY相互作用的电子的谷自由度为探索二维范德华异质结构中的非普适相变和量子自旋液体态提供了强大的控制旋钮。
英文摘要
We put forward the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in transition metal dichalcogenide monolayers as a tool to create and control a chiral magnetic texture. We show that in the spin-valley locking regime, the RKKY interaction acts as a Dzyaloshinskii-Moriya coupling with an effective spin rotation period exactly equal to the tripled lattice constant. Using mean field theory and classical Monte Carlo simulations, we demonstrate that this interaction qualitatively reshapes the phase diagram of atomically thin antiferromagnets. It destroys the chirality-related phase transition by selecting a single chirality value even when the RKKY interaction is small. At the same time, it shifts the Berezinskii-Kosterlitz-Thouless transition associated with spins orientation to higher temperatures. We argue that the valley degree of freedom of electrons mediating the RKKY interaction provides a powerful control knob for exploring non-universal phase transitions and quantum spin liquid states in two-dimensional van der Waals heterostructures.
Comments7+2 pages, 4+1 figures, joint submission with "Proximity effects of chiral magnetization on transition metal dichalcogenides monolayers" by the same authors
