Model for the metal-insulator transition in graphene superlattices and beyond

Model for the metal-insulator transition in graphene superlattices and beyond

We propose a two-orbital Hubbard model on an emergent honeycomb lattice to describe the low-energy physics of twisted bilayer graphene. Our model provides a theoretical basis for studying metal-insulator transition, Landau level degeneracy lifting, and unconventional superconductivity that are recen...

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Veröffentlicht in:Physical review. B 2018-07, Vol.98 (4), p.045103, Article 045103
Hauptverfasser: Yuan, Noah F. Q., Fu, Liang
Format: Artikel
Sprache:eng
Schlagworte:
Bilayers
Graphene
Honeycomb construction
Insulators
Metal-insulator transition
Superlattices
Unconventional superconductivity
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Beschreibung
Zusammenfassung:We propose a two-orbital Hubbard model on an emergent honeycomb lattice to describe the low-energy physics of twisted bilayer graphene. Our model provides a theoretical basis for studying metal-insulator transition, Landau level degeneracy lifting, and unconventional superconductivity that are recently observed.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.98.045103