Near a magic twist angle, bilayer graphene transforms from a weakly correlated Fermi liquid
to a strongly correlated two-dimensional electron system with properties that are …

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 …

Moiré graphene systems have attracted considerable attention in the past 3 years because
they exhibit exotic phenomena including correlated insulating states, unconventional …

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 …

Transition metal dichalcogenide (TMD) bilayers have recently emerged as a robust and
tunable moiré system for studying and designing correlated electron physics. In this Rapid …

We use self-consistent Hartree-Fock calculations performed in the full π-band Hilbert space
to assess the nature of the recently discovered correlated insulator states in magic-angle …

We show that the Wannier obstruction and the fragile topology of the nearly flat bands in
twisted bilayer graphene at magic angle are manifestations of the nontrivial topology of two …

A remarkable feature of the band structure of bilayer graphene at small twist angle is the
appearance of isolated bands near neutrality, whose bandwidth can be reduced at certain …

We propose that the electronic structure of twisted bilayer graphene (TBG) can be
understood as Dirac fermions coupled with opposite pseudomagnetic fields generated by …

Bilayer graphene twisted by a small angle shows a significant charge modulation away from
neutrality, as the charge in the narrow bands near the Dirac point is mostly localized in a …