The quantum Hall (QH) effect, quantized Hall resistance combined with zero longitudinal
resistance, is the characteristic experimental fingerprint of Chern insulators—topologically …

Moiré materials have emerged as a platform for exploring the physics of strong electronic
correlations and non-trivial band topology. Here we review the recent progress in …

The interplay between strong correlations and topology can lead to the emergence of
intriguing quantum states of matter. One well-known example is the fractional quantum Hall …

The discovery of correlated states and superconductivity in magic-angle twisted bilayer
graphene (MATBG) established a new platform to explore interaction-driven and topological …

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 …

Electron correlation and topology are two central threads of modern condensed matter
physics. Semiconductor moiré materials provide a highly tuneable platform for studies of …

The pursuit of exotic phases of matter outside of the extreme conditions of a quantizing
magnetic field is a long-standing quest of solid state physics. Recent experiments have …

Recent experiments have produced evidence for fractional quantum anomalous Hall
(FQAH) states at zero magnetic field in the semiconductor moiré superlattice system t MoTe …

Polymorphic 2D materials allow structural and electronic phase engineering, which can be
used to realize energy-efficient, cost-effective, and scalable device applications. The phase …

The Kondo lattice—a matrix of local magnetic moments coupled through spin-exchange
interactions to itinerant conduction electrons—is a prototype of strongly correlated quantum …