Electronic properties of graphene-based bilayer systems

TL;DR

This review paper discusses the theoretical and experimental understanding of the electronic properties of various bilayer graphene systems, including stacking types, external field effects, and interaction phenomena.

Contribution

It provides a comprehensive overview of current research on bilayer graphene's electronic properties, covering multiple stacking configurations and interaction effects.

Findings

Different stacking arrangements influence electronic behavior.

External fields modify electronic and optical properties.

Interaction effects lead to symmetry breaking phenomena.

Abstract

This article reviews the theoretical and experimental work related to the electronic properties of bilayer graphene systems. Three types of bilayer stackings are discussed: the AA, AB, and twisted bilayer graphene. This review covers single-electron properties, effects of static electric and magnetic fields, bilayer-based mesoscopic systems, spin-orbit coupling, dc transport and optical response, as well as spontaneous symmetry violation and other interaction effects. The selection of the material aims to introduce the reader to the most commonly studied topics of theoretical and experimental research in bilayer graphene.