论文标题
Moiré诱导的电子结构修改单层V $ _ {2} $ s $ _ {3} $ au（111）
Moiré induced electronic structure modifications in monolayer V$_{2}$S$_{3}$ on Au(111)
论文作者
论文摘要
对本地环境如何在单层限制下如何影响材料的电子结构引起了极大的兴趣。我们通过低温扫描隧道显微镜和光谱法表征了Moiré在AU（111）上的原位生长单层V2S3的电子结构中引起的空间变化。我们观察到对状态的局部密度（LDOS）的远程调制，并量化了相对于Moiré上部结构的调制，以针对单层的多个方向相对于底物。扫描隧道光谱显示LDO的峰值峰值，在Moiré上层建筑的不同点的能量转移。将从头算的计算与角度分辨光发射进行比较，我们能够将此峰归因于表现出较大平面外D轨道特征的频段。这表明，莫伊尔驱动的状态密度变化是由单层 - 基底杂交的周期性调节驱动的。
There is immense interest in how the local environment influences the electronic structure of materials at the single layer limit. We characterize moiré induced spatial variations in the electronic structure of in-situ grown monolayer V2S3 on Au(111) by means of low temperature scanning tunneling microscopy and spectroscopy. We observe a long-range modulation of the integrated local density of states (LDOS), and quantify this modulation with respect to the moiré superstructure for multiple orientations of the monolayer with respect to the substrate. Scanning tunneling spectroscopy reveals a prominent peak in the LDOS, which is shifted in energy at different points of the moiré superstructure. Comparing ab initio calculations with angle-resolved photoemission, we are able to attribute this peak to bands that exhibit a large out-of-plane d-orbital character. This suggests that the moiré driven variations in the measured density of states is driven by a periodic modulation of the monolayer-substrate hybridization.
