Twisted bilayer graphene has a rich phase diagram, including superconductivity. Recently,
an unexpected discovery has been the observation of superconductivity in non-twisted …

The quantum anomalous Hall (QAH) effect combines topology and magnetism to produce
precisely quantized Hall resistance at zero magnetic field. We report the observation of a …

When two sheets of graphene are stacked on top of each other with a small twist of angle
θ≈ 1.1° between them, theory predicts the formation of a flat electronic band,. Experiments …

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 …

We find exact analytic expressions for the energies and wave functions of the charged and
neutral excitations above the exact ground states (at rational filling per unit cell) of projected …

We show that the entire continuous model of twisted bilayer graphene (TBG)(and not just the
two active bands) with particle-hole symmetry is anomalous and hence incompatible with …

We report on a fully self-consistent Hartree-Fock calculation of interaction effects on the
moiré flat bands of twisted bilayer graphene, assuming that valley U (1) symmetry is …

We introduce twisted trilayer graphene (tTLG) with two independent twist angles as an ideal
system for the precise tuning of the electronic interlayer coupling to maximize the effect of …

Motivated by recent low-temperature magnetoresistance measurements in twisted bilayer
graphene aligned with hexagonal boron nitride substrate, we perform a systematic study of …

A critical point of the energy dispersion is the momentum where electron velocity vanishes.
At the corresponding energy, the density of states (DOS) exhibits nonanalyticity such as …