Reproducibility in the fabrication and physics of moiré materials

CN Lau, MW Bockrath, KF Mak, F Zhang - Nature, 2022 - nature.com
Overlaying two atomic layers with a slight lattice mismatch or at a small rotation angle
creates a moiré superlattice, which has properties that are markedly modified from (and at …

Superconductivity and correlated phases in non-twisted bilayer and trilayer graphene

PA Pantaleón, A Jimeno-Pozo, H Sainz-Cruz… - Nature Reviews …, 2023 - nature.com
Twisted bilayer graphene has a rich phase diagram, including superconductivity. Recently,
an unexpected discovery has been the observation of superconductivity in non-twisted …

Fractional Chern insulators in magic-angle twisted bilayer graphene

Y **e, AT Pierce, JM Park, DE Parker, E Khalaf… - Nature, 2021 - nature.com
Abstract Fractional Chern insulators (FCIs) are lattice analogues of fractional quantum Hall
states that may provide a new avenue towards manipulating non-Abelian excitations. Early …

Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene

J Díez-Mérida, A Díez-Carlón, SY Yang, YM **e… - Nature …, 2023 - nature.com
The coexistence of gate-tunable superconducting, magnetic and topological orders in magic-
angle twisted bilayer graphene provides opportunities for the creation of hybrid Josephson …

Anomalous Hall crystals in rhombohedral multilayer graphene. I. Interaction-driven Chern bands and fractional quantum Hall states at zero magnetic field

J Dong, T Wang, T Wang, T Soejima, MP Zaletel… - Physical Review Letters, 2024 - APS
Recent experiments on rhombohedral pentalayer graphene with a substrate-induced moiré
potential have identified both Chern insulators and fractional quantum Hall states at zero …

Chern mosaic and Berry-curvature magnetism in magic-angle graphene

S Grover, M Bocarsly, A Uri, P Stepanov, G Di Battista… - Nature physics, 2022 - nature.com
Charge carriers in magic-angle graphene come in eight flavours described by a combination
of their spin, valley and sublattice polarizations. When inversion and time-reversal …

Magic-angle helical trilayer graphene

T Devakul, PJ Ledwith, LQ **a, A Uri… - Science …, 2023 - science.org
We propose magic-angle helical trilayer graphene (HTG), a helical structure featuring
identical rotation angles between three consecutive layers of graphene, as a unique and …

Symmetry-broken Chern insulators and Rashba-like Landau-level crossings in magic-angle bilayer graphene

I Das, X Lu, J Herzog-Arbeitman, ZD Song… - Nature Physics, 2021 - nature.com
Flat bands in magic-angle twisted bilayer graphene (MATBG) have recently emerged as a
rich platform to explore strong correlations, superconductivity,,–and magnetism,,. However …

Kondo lattice model of magic-angle twisted-bilayer graphene: Hund's rule, local-moment fluctuations, and low-energy effective theory

H Hu, BA Bernevig, AM Tsvelik - Physical review letters, 2023 - APS
We apply a generalized Schrieffer-Wolff transformation to the extended Anderson-like
topological heavy fermion (THF) model for the magic-angle (θ= 1.0 5°) twisted bilayer …

Spin-orbit–driven ferromagnetism at half moiré filling in magic-angle twisted bilayer graphene

JX Lin, YH Zhang, E Morissette, Z Wang, S Liu… - Science, 2022 - science.org
Strong electron correlation and spin-orbit coupling (SOC) can have a profound influence on
the electronic properties of materials. We examined their combined influence on a two …