论文标题
二维晶体的全息电子束衍射（CBED）成像
Holographic convergent electron beam diffraction (CBED) imaging of two-dimensional crystals
论文作者
论文摘要
在二维（2D）材料上进行的融合束电子衍射（CBED）最近出现在研究结构和堆叠缺陷，吸附物，原子3D层中的原子3D位移以及层间距离。 2D晶体的单个CBED斑点中的干扰模式的形成可以视为全息图，因此可以通过经常改编自全息图改编的常规重建方法来直接重建CBED模式。在这项研究中，我们回顾了最新的结果，该结果应用于2D晶体及其异质结构：双层的全息图和缺陷的重建和确定层间距离的确定，在2D晶体单层上c bed以揭示吸附剂，并揭示与Moiré局部结构模式的多层化范德瓦尔斯系统的c床。
Convergent beam electron diffraction (CBED) performed on two-dimensional (2D) materials recently emerged as a powerful tool to study structural and stacking defects, adsorbates, atomic 3D displacements in the layers, and the interlayer distances. The formation of the interference patterns in individual CBED spots of 2D crystals can be considered as a hologram, thus the CBED patterns can be directly reconstructed by conventional reconstruction methods adapted from holography. In this study, we review recent results applying CBED to 2D crystals and their heterostructures: holographic CBED on bilayers with the reconstruction of defects and the determination of interlayer distance, CBED on 2D crystal monolayers to reveal adsorbates, and CBED on multilayered van der Waals systems with moiré patterns for local structural determination.
