论文标题

基于石墨烯的Moiré超级晶格中的Arpes理论

Theory of ARPES in Graphene-Based Moiré Superlattices

论文作者

Zhu, Jihang, Shi, Jingtian, MacDonald, Allan H.

论文摘要

现在,基于石墨烯的Moiré超级晶格被确定为非常相关的多电子物理学的有趣平台,到目前为止,主要是通过运输和扫描隧道显微镜(STM)测量来表征的。在最近的实验进步的推动下,我们提出了一项理论模型研究,其目的是评估角度分辨光发射光谱(ARPES)解决这些系统中许多开放问题中的某些问题。该理论是专为六角形硼硼(G/HBN)和扭曲的双层石墨烯(TBG)Moiré超级晶格的石墨烯开发的,但很容易将其推广到任何具有石墨烯纸中有效自由度的系统。

Graphene-based moiré superlattices are now established as an interesting platform for strongly-correlated many-electron physics, and have so far been characterized mainly by transport and scanning tunneling microscopy (STM) measurements. Motivated by recent experimental progress, we present a theoretical model study whose aim is to assess the potential of angle-resolved photoemission spectroscopy (ARPES) to resolve some of the many open issues in these systems. The theory is developed specifically for graphene on hexagonal boron nitride (G/hBN) and twisted bilayer graphene (TBG) moiré superlattices, but is readily generalized to any system with active degrees of freedom in graphene sheets.

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