Theory of ARPES in Graphene-Based Moiré Superlattices

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Date

2021-05-02

Authors

Zhu, Jihang
Shi, Jingtian
MacDonald, Allan H.

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Abstract

Graphene-based moir´e superlattices are now established as an interesting platform for strongly- correlated many-electron physics, and have so far been characterized mainly by transport and scan- ning 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 photoemis- sion 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) moir´e superlattices, but is readily generalized to any system with active degrees of freedom in graphene sheets.

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