Quantum textures of the many-body wavefunctions in magic-angle graphene

KP Nuckolls, RL Lee, M Oh, D Wong, T Soejima… - Nature, 2023 - nature.com
Interactions among electrons create novel many-body quantum phases of matter with
wavefunctions that reflect electronic correlation effects, broken symmetries and collective …

Nematicity and competing orders in superconducting magic-angle graphene

Y Cao, D Rodan-Legrain, JM Park, NFQ Yuan… - science, 2021 - science.org
Strongly interacting electrons in solid-state systems often display multiple broken
symmetries in the ground state. The interplay between different order parameters can give …

Superconductivity in metallic twisted bilayer graphene stabilized by WSe2

HS Arora, R Polski, Y Zhang, A Thomson, Y Choi… - Nature, 2020 - nature.com
Magic-angle twisted bilayer graphene (TBG), with rotational misalignment close to 1.1
degrees, features isolated flat electronic bands that host a rich phase diagram of correlated …

Pseudo Landau level representation of twisted bilayer graphene: Band topology and implications on the correlated insulating phase

J Liu, J Liu, X Dai - Physical Review B, 2019 - APS
We propose that the electronic structure of twisted bilayer graphene (TBG) can be
understood as Dirac fermions coupled with opposite pseudomagnetic fields generated by …

Topology-bounded superfluid weight in twisted bilayer graphene

F Xie, Z Song, B Lian, BA Bernevig - Physical review letters, 2020 - APS
While regular flat bands are good for enhancing the density of states and hence the gap,
they are detrimental to the superfluid weight. We show that the predicted nontrivial topology …

Superfluid weight and Berezinskii-Kosterlitz-Thouless transition temperature of twisted bilayer graphene

A Julku, TJ Peltonen, L Liang, TT Heikkilä, P Törmä - Physical Review B, 2020 - APS
We study superconductivity of twisted bilayer graphene with local and nonlocal attractive
interactions. We obtain the superfluid weight and Berezinskii-Kosterlitz-Thouless (BKT) …

Strain-induced quantum phase transitions in magic-angle graphene

DE Parker, T Soejima, J Hauschild, MP Zaletel… - Physical review …, 2021 - APS
We investigate the effect of uniaxial heterostrain on the interacting phase diagram of magic-
angle twisted bilayer graphene. Using both self-consistent Hartree-Fock and density-matrix …

Correlated insulating phases of twisted bilayer graphene at commensurate filling fractions: A Hartree-Fock study

Y Zhang, K Jiang, Z Wang, F Zhang - Physical Review B, 2020 - APS
Motivated by the recently observed insulating states in twisted bilayer graphene, we study
the nature of the correlated insulating phases of the twisted bilayer graphene at …

Geometric and conventional contribution to the superfluid weight in twisted bilayer graphene

X Hu, T Hyart, DI Pikulin, E Rossi - Physical Review Letters, 2019 - APS
By tuning the angle between graphene layers to specific “magic angles” the lowest energy
bands of twisted bilayer graphene (TBLG) can be made flat. The flat nature of the bands …

Correlated insulating and superconducting states in twisted bilayer graphene below the magic angle

E Codecido, Q Wang, R Koester, S Che, H Tian… - Science …, 2019 - science.org
The emergence of flat bands and correlated behaviors in “magic angle” twisted bilayer
graphene (tBLG) has sparked tremendous interest, though its many aspects are under …