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Exact continuum model for low-energy electronic states of twisted bilayer graphene

2019/01/31 by Stephen Carr, Shiang Fang, Ziyan Zhu +1 · 2 citations
Chemistry · Materials Science · Physics and Astronomy · #2D Materials and Applications #Bilayer #Bilayer graphene #Chemistry #Condensed matter physics #Graphene #Graphene research and applications #Materials science #Membrane #Nanotechnology #Physics #Quantum and electron transport phenomena #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevresearch.1.013001

published as Phys. Rev. Research 1, 013001 (2019) · 5 pages, 4 figures (supplementary material: 9 pages, 1 figure)

arxiv created 2019/05/15 · openalex created_date 2019/05/29 · openalex publication_date 2019/08/09 · arxiv updated 2019/08/14 · openalex updated_date 2026/08/06

Abstract

Twisted bilayer graphene has been the focus of many research efforts since the discovery of its superconducting phase. However, due to its size and large-scale atomic reconstruction, obtaining an accurate electronic model is computationally demanding. In this work, first-principles calculations are connected to an updated continuum model, allowing for thorough analysis of how band structure in real devices depends on the twisting angle. The model is made publicly available, providing a reliable foundation for ongoing studies of correlated phases.

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