论文标题
2D磁单层中激子与磁性拓扑缺陷的相互作用:定位和异常效果
Interaction of excitons with magnetic topological defects in 2D magnetic monolayers: localization and anomalous Hall effect
论文作者
论文摘要
新颖的2D材料CRI3揭示了2D铁磁学和强大的激子反应的独特组合。我们证明了形成磁性拓扑缺陷的可能性,例如Neel Skyrmions,以及大型激子Zeeman分裂,导致巨大的散射不对称,这是激发型异常霍尔效应的必要先决条件。此外,磁磁效应破坏了反转对称性,在某些情况下可能会导致天际上的激子定位。这使得用可调参数形成了磁性异位量子点。
Novel 2D material CrI3 reveals unique combination of 2D ferromagnetism and robust excitonic response. We demonstrate that the possibility of the formation of magnetic topological defects, such as Neel skyrmions, together with large excitonic Zeeman splitting, leads to giant scattering asymmetry, which is the necessary prerequisite for the excitonic anomalous Hall effect. In addition, the diamagnetic effect breaks the inversion symmetry, and in certain cases can result in exciton localization on the skyrmion. This enables the formation of magnetoexcitonic quantum dots with tunable parameters.