A microscopic perspective on moiré materials

KP Nuckolls, A Yazdani - Nature Reviews Materials, 2024 - nature.com
Contemporary quantum materials research is guided by themes of topology and electronic
correlations. A confluence of these two themes is engineered in moiré materials, an …

Moiré heterostructures as a condensed-matter quantum simulator

DM Kennes, M Claassen, L **an, A Georges, AJ Millis… - Nature Physics, 2021 - nature.com
Twisted van der Waals heterostructures have latterly received prominent attention for their
many remarkable experimental properties and the promise that they hold for realizing …

Magic-angle twisted bilayer graphene as a topological heavy fermion problem

ZD Song, BA Bernevig - Physical review letters, 2022 - APS
Magic-angle (θ= 1.0 5°) twisted bilayer graphene (MATBG) has shown two seemingly
contradictory characters: the localization and quantum-dot-like behavior in STM …

Evidence for unconventional superconductivity in twisted bilayer graphene

M Oh, KP Nuckolls, D Wong, RL Lee, X Liu… - Nature, 2021 - nature.com
The emergence of superconductivity and correlated insulators in magic-angle twisted bilayer
graphene (MATBG) has raised the intriguing possibility that its pairing mechanism is distinct …

Maximized electron interactions at the magic angle in twisted bilayer graphene

A Kerelsky, LJ McGilly, DM Kennes, L **an… - Nature, 2019 - nature.com
The electronic properties of heterostructures of atomically thin van der Waals crystals can be
modified substantially by moiré superlattice potentials from an interlayer twist between …

Tuning superconductivity in twisted bilayer graphene

M Yankowitz, S Chen, H Polshyn, Y Zhang… - Science, 2019 - science.org
Materials with flat electronic bands often exhibit exotic quantum phenomena owing to strong
correlations. An isolated low-energy flat band can be induced in bilayer graphene by simply …

Origin of magic angles in twisted bilayer graphene

G Tarnopolsky, AJ Kruchkov, A Vishwanath - Physical review letters, 2019 - APS
Twisted bilayer graphene (TBG) was recently shown to host superconductivity when tuned to
special “magic angles” at which isolated and relatively flat bands appear. However, until …

Twisted bilayer graphene: a phonon-driven superconductor

B Lian, Z Wang, BA Bernevig - Physical review letters, 2019 - APS
We study the electron-phonon coupling in twisted bilayer graphene (TBG), which was
recently experimentally observed to exhibit superconductivity around the magic twist angle …

Strong coupling phases of partially filled twisted bilayer graphene narrow bands

J Kang, O Vafek - Physical review letters, 2019 - APS
We identify states favored by Coulomb interactions projected onto the Wannier basis of the
four narrow bands of the “magic angle” twisted bilayer graphene. At the filling of 2 …

Twisted bilayer graphene. IV. Exact insulator ground states and phase diagram

B Lian, ZD Song, N Regnault, DK Efetov, A Yazdani… - Physical Review B, 2021 - APS
We derive the exact insulator ground states of the projected Hamiltonian of magic-angle
twisted bilayer graphene (TBG) flat bands with Coulomb interactions in various limits, and …