We show that bilayer graphene in the presence of a 2D superlattice potential provides a
highly tunable setup that can realize a variety of flat band phenomena. We focus on two …

Moiré systems have emerged in recent years as a rich platform to study strong correlations.
Here, we will propose a simple, experimentally feasible setup based on periodically strained …

Recently, moiré superlattices have been found on the surface of topological insulators due
to the rotational misalignment of topmost layers. In this work, we study the effects of moiré …

Stacking three monolayers of graphene with a twist generally produces two moiré patterns.
A moiré of moiré structure then emerges at larger distance where the three layers …

Motivated by recent advances in the fabrication of twisted bilayers of two-dimensional
materials, we consider the low-energy properties of a twisted pair of two-dimensional nodal …

Since the discovery of magic-angle twisted bilayer graphene, flat bands in Dirac materials
have become a prominent platform for realizing strong correlation effects in electronic …

We demonstrate that a single layer of graphene subject to a superlattice potential nearly
commensurate to a 3× 3 supercell exactly maps to the chiral model of twisted bilayer …

Bernal stacked bilayer graphene subject to a superlattice potential can realize topological
and stacked flat bands [Ghorashi, Phys. Rev. Lett. 130, 196201 (2023) …

We study trilayer graphene arranged in a staircase stacking configuration with equal
consecutive twist angle. On top of the moiré crystalline pattern, a supermoiré long …

We present a promising route to realize spontaneous magnetic order on the surface of a 3D
topological insulator by applying a superlattice potential. The superlattice potential lowers …