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

By N. Yuan, Liang Fu. Physical review B, 2018

239 citations recorded by the source corpus.

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.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/0ed7427a46c57359402f28c6acbe9d3005cb97da

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Ashvin Vishwanath
2. Liang Fu
3. A. Kruchkov
4. G. Tarnopolsky
5. O. Vafek
6. Jian Kang
7. N. Yuan
8. Takashi Koretsune

In Condensed Matter Physics

1. Ashvin Vishwanath
2. A. Kruchkov
3. G. Tarnopolsky
4. Liang Fu
5. O. Vafek
6. Jian Kang
7. N. Yuan
8. Y. Ando

In Materials Chemistry

1. Ashvin Vishwanath
2. A. Kruchkov
3. G. Tarnopolsky
4. O. Vafek
5. Jian Kang
6. N. Yuan
7. Liang Fu
8. Takashi Koretsune

Citations in the corpus

• Symmetry, Maximally Localized Wannier States, and a Low-Energy Model for Twisted Bilayer Graphene Narrow Bands (2018, background): “The doublets are the two-dimensional representations (E) of the groupD3 [5].”
• Origin of Magic Angles in Twisted Bilayer Graphene. (2018, methodology): “siders two layers of graphene described by an effective Dirac fields near K,K ′ points of the moire (mini) Brillouin Zone, each rotated by an angle ±θ/2, and coupled through a Moiré potential T (r) [3, 14, 35, 39]:”