The transformation of digital computers from bulky machines to portable systems has been
enabled by new materials and advanced processing technologies that allow ultrahigh …

As the first in a large family of 2D van der Waals (vdW) materials, graphene has attracted
enormous attention owing to its remarkable properties. The recent development of simple …

Controlling the strength of interactions is essential for studying quantum phenomena
emerging in systems of correlated fermions. We introduce a device geometry whereby magic …

Layers of two-dimensional materials stacked with a small twist angle give rise to beating
periodic patterns on a scale much larger than the original lattice, referred to as a “moiré …

In the fractional quantum Hall effect, quasiparticles are collective excitations that have a
fractional charge and show fractional statistics as they interchange positions. While the …

Over the past decade, there have been considerable efforts to observe non-abelian
quasiparticles in novel quantum materials and devices. These efforts are motivated by the …

The presence of “upstream” modes, moving against the direction of charge current flow in
the fractional quantum Hall (FQH) phases, is critical for the emergence of renormalized …

The even-denominator fractional quantum Hall state at a filling factor of ν= 1/2 is an
intriguing many-body phase in two-dimensional electron systems, as it appears in the …

Fractional quantum anomalous hall effect (FQAHE), a transport effect with fractionally
quantized Hall plateau emerging under zero magnetic field, provides a radically new …

Quasiparticles with fractional charge and fractional statistics are key features of the fractional
quantum Hall effect. We discuss in detail the definitions of fractional charge and statistics …