Flat bands for electrons in rhombohedral graphene multilayers with a twin boundary

Research output: Contribution to journalArticlepeer-review

Abstract

Topologically protected at surface bands make thin films of rhombohedral graphite an appealing platform for searching for strongly correlated states of 2D electrons. In this work, we study rhombohedral graphite with a twin boundary stacking fault and analyse the semimetallic and topological properties of low-energy bands localised at the surfaces and at the twinned interface. We derive an effective 4-band low energy model, where we implement the full set of Slonczewski-Weiss-McClure (SWMcC) parameters, and find the conditions for the bands to be localised at the twin boundary, protected from the environment-induced disorder. This protection together with a high density of states at the charge neutrality point, in some cases { due to a Lifshitz transition, makes this system a promising candidate for hosting strongly-correlated effects.
Original languageEnglish
JournalAdvanced Materials Interfaces
Publication statusAccepted/In press - 17 Nov 2022

Fingerprint

Dive into the research topics of 'Flat bands for electrons in rhombohedral graphene multilayers with a twin boundary'. Together they form a unique fingerprint.

Cite this