论文标题
通过空间和角度分辨光发射研究的2D范德华晶体和异质结构的电子结构
Electronic structure of 2D van der Waals crystals and heterostructures investigated by spatially- and angle-resolved photoemission
论文作者
论文摘要
角度分辨光发射是对动量分辨电子结构的直接探针，并证明在具有新型电子特性的散装晶体中具有影响力。多亏了最近的技术进步，现在可以首次应用该技术来研究通过堆叠二维晶体构建的范德华异质结构。在本文中，我们将以二维材料的角度分辨光发射测量介绍当前的最新技术状态，并回顾这个仍然年轻的领域。我们将特别关注类似于运输和光学实验中使用的设备，包括有关魔术角扭转双层石墨烯的最新开发以及栅极可调设备的Operando表征。
Angle-resolved photoemission is a direct probe of the momentum-resolved electronic structure and proved influential in the study of bulk crystals with novel electronic properties. Thanks to recent technical advances, this technique can now be applied for the first time for the study of van der Waals heterostructures built by stacking two-dimensional crystals. In this article we will present the current state of the art in angle-resolved photoemission measurements on two-dimensional materials and review this still young field. We will focus in particular on devices similar to those used in transport and optics experiments, including the latest developments on magic-angle twisted bilayer graphene and on the in-operando characterization of gate tunable devices.
