Model for the metal-insulator transition in graphene superlattices and beyond
Abstract
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.
- Publication:
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Physical Review B
- Pub Date:
- July 2018
- DOI:
- 10.1103/PhysRevB.98.045103
- arXiv:
- arXiv:1803.09699
- Bibcode:
- 2018PhRvB..98d5103Y
- Keywords:
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- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- Maintext: 10 pages, 5 figures. Supplementary Material: 5 pages, 4 figures