Composite Fermi Liquid at Zero Magnetic Field in Twisted
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 …
magnetic field is a long-standing quest of solid state physics. Recent experiments have …
Anomalous Hall crystals in rhombohedral multilayer graphene. I. Interaction-driven Chern bands and fractional quantum Hall states at zero magnetic field
Recent experiments on rhombohedral pentalayer graphene with a substrate-induced moiré
potential have identified both Chern insulators and fractional quantum Hall states at zero …
potential have identified both Chern insulators and fractional quantum Hall states at zero …
Pressure-enhanced fractional Chern insulators along a magic line in moiré transition metal dichalcogenides
We show that pressure applied to twisted WSe 2 can enhance the many-body gap and
region of stability of a fractional Chern insulator at filling ν= 1/3. Our results are based on …
region of stability of a fractional Chern insulator at filling ν= 1/3. Our results are based on …
Realization of the Haldane Chern insulator in a moiré lattice
The Chern insulator displays a quantized Hall effect without Landau levels. Theoretically,
this state can be realized by engineering complex next-nearest-neighbour hopping in a …
this state can be realized by engineering complex next-nearest-neighbour hopping in a …
Mapping twist-tuned multiband topology in bilayer WSe2
Semiconductor moiré superlattices have been shown to host a wide array of interaction-
driven ground states. However, twisted homobilayers have been difficult to study in the limit …
driven ground states. However, twisted homobilayers have been difficult to study in the limit …
Interaction-Driven Topological Phase Diagram of Twisted Bilayer
Twisted bilayer MoTe 2 is a promising platform to investigate the interplay between band
topology and many-body interactions. We present a theoretical study of its interaction-driven …
topology and many-body interactions. We present a theoretical study of its interaction-driven …
Band mixing in the quantum anomalous Hall regime of twisted semiconductor bilayers
Remarkable recent experiments have observed fractional quantum anomalous Hall effects
at zero field and unusually high temperatures in twisted semiconductor bilayer t MoTe 2 …
at zero field and unusually high temperatures in twisted semiconductor bilayer t MoTe 2 …
Integer and fractional Chern insulators in twisted bilayer MoTe2
Chern insulators, which are the lattice analogs of the quantum Hall states, can potentially
manifest high-temperature topological orders at zero magnetic field to enable next …
manifest high-temperature topological orders at zero magnetic field to enable next …
1/4 is the new 1/2 when topology is intertwined with Mottness
In non-interacting systems, bands from non-trivial topology emerge strictly at half-filling and
exhibit either the quantum anomalous Hall or spin Hall effects. Here we show using …
exhibit either the quantum anomalous Hall or spin Hall effects. Here we show using …
Giant spin Hall effect in AB-stacked MoTe2/WSe2 bilayers
The spin Hall effect (SHE), in which an electrical current generates a transverse spin current,
plays an important role in spintronics for the generation and manipulation of spin-polarized …
plays an important role in spintronics for the generation and manipulation of spin-polarized …