标题： 石墨烯和MoS2单层对高电荷离子撞击响应中的电子相关效应 显示英文标题

标题： Electronic correlation effects in the response of graphene and MoS2 monolayers to the impact of highly-charged ions

摘要： 基于非平衡格林函数（NEGF）理论研究了高电荷离子与石墨烯和MoS2单层的相互作用。 在一篇最近的论文[Niggas等，Phys. Rev. Lett. 129, 086802 (2022)]中，报道了这两种材料对入射慢离子的响应存在显著差异。 在此，该分析被扩展，重点研究单层中的电子-电子关联对离子电子响应的影响。 我们应用了最近开发的时间线性G1-G2方案[Schluenzen等，Phys. Rev. Lett. 124, 076601 (2020)]，并结合了一种嵌入方法[Balzer等，Phys. Rev. B 107, 155141 (2023)]。 我们证明了虽然电子关联在石墨烯中影响较小，但在MoS2的情况下，它们显著影响电子动力学。 我们的主要结果是离子撞击点附近的电荷密度和感应静电势的超快动力学。 显示英文摘要

摘要： The interaction of highly-charged ions with monolayers of graphene and MoS2 is theoretically investigated based on nonequilibrium Green Functions (NEGF). In a recent paper [Niggas et al., Phys. Rev. Lett. 129, 086802 (2022)] dramatic differences in the response of the two materials to an impacting slow ion were reported. Here, this analysis is extended, focusing on the effect of electron-electron correlations in the monolayer on the electronic response to the ion. We apply the recently developed time-linear G1-G2 scheme [Schluenzen et al., Phys. Rev. Lett. 124, 076601 (2020)] combined with an embedding approach [Balzer et al., Phys. Rev. B 107, 155141 (2023)]. We demonstrate that, while electronic correlations have a minor effect in graphene, they significantly influence the electron dynamics in the case of MoS2. Our key results are the ultrafast dynamics of the charge density and induced electrostatic potential in the vicinity of the impact point of the ion.