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 …

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

The fractional quantum anomalous Hall effect (FQAHE), the analogue of the fractional
quantum Hall effect at zero magnetic field, is predicted to exist in topological flat bands …

In conventional superconductors, Cooper pairing occurs between electrons of opposite spin.
We observe spin-polarized superconductivity in Bernal bilayer graphene when doped to a …

To access superconductivity via the electric field effect in a clean, two-dimensional device is
a central goal of nanoelectronics. Recently, superconductivity has been realized in …

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 …

Recent experiments on rhombohedral pentalayer graphene with a substrate-induced moiré
potential have identified both Chern insulators and fractional quantum Hall states at zero …

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

Electronic states in quasicrystals generally preclude a Bloch description, rendering them
fascinating and enigmatic. Owing to their complexity and scarcity, quasicrystals are …