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 …

Realizing the full potential of any materials system requires understanding and controlling
disorder, which can obscure intrinsic properties and hinder device performance. Here we …

Rhombohedral-stacked multilayer graphene hosts a pair of flat bands touching at zero
energy, which should give rise to correlated electron phenomena that can be tuned further …

Interactions among charge carriers in graphene can lead to the spontaneous breaking of
multiple degeneracies. When increasing the number of graphene layers following …

Ferroic orders describe spontaneous polarization of spin, charge and lattice degrees of
freedom in materials. Materials exhibiting multiple ferroic orders, known as multiferroics …

Symmetry breaking in 2D layered materials plays a significant role in their macroscopic
electrical, optical, magnetic and topological properties, including, but not limited to, spin …

We review the electronic properties of bilayer graphene, beginning with a description of the
tight-binding model of bilayer graphene and the derivation of the effective Hamiltonian …

The two-dimensional electron systems in graphene and in topological insulators are
described by massless Dirac equations. Although the two systems have similar …

A wide range of materials, like d-wave superconductors, graphene, and topological
insulators, share a fundamental similarity: their low-energy fermionic excitations behave as …

Divergent density of states offers an opportunity to explore a wide variety of correlated
electron physics. In the thinnest limit, this has been predicted and verified in the ultraflat …