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 …
Zero-field composite Fermi liquid in twisted semiconductor bilayers
Recent experiments have produced evidence for fractional quantum anomalous Hall
(FQAH) states at zero magnetic field in the semiconductor moiré superlattice system t MoTe …
(FQAH) states at zero magnetic field in the semiconductor moiré superlattice system t MoTe …
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 …
Moiré fractional Chern insulators. I. First-principles calculations and continuum models of twisted bilayer
Recent experiments observed fractional Chern insulators (FCI) in twisted bilayer MoTe 2 at
zero magnetic field, yet even the single-particle model of this material is controversial …
zero magnetic field, yet even the single-particle model of this material is controversial …
Vortexability: A unifying criterion for ideal fractional Chern insulators
Fractional Chern insulators realize the remarkable physics of the fractional quantum Hall
effect (FQHE) in crystalline systems with Chern bands. The lowest Landau level (LLL) is …
effect (FQHE) in crystalline systems with Chern bands. The lowest Landau level (LLL) is …
Untwisting moiré physics: Almost ideal bands and fractional Chern insulators in periodically strained monolayer graphene
Moiré systems have emerged in recent years as a rich platform to study strong correlations.
Here, we will propose a simple, experimentally feasible setup based on periodically strained …
Here, we will propose a simple, experimentally feasible setup based on periodically strained …
Origin of model fractional Chern insulators in all topological ideal flatbands: Explicit color-entangled wave function and exact density algebra
It is commonly believed that nonuniform Berry curvature destroys the Girvin-MacDonald-
Platzman algebra and as a consequence destabilizes fractional Chern insulators. In this …
Platzman algebra and as a consequence destabilizes fractional Chern insulators. In this …
Ideal Chern bands as Landau levels in curved space
We prove that all the criteria proposed in the literature to identify a Chern band hosting exact
fractional Chern insulating ground states, in fact, describe an equivalence with a lowest …
fractional Chern insulating ground states, in fact, describe an equivalence with a lowest …
Fractional Chern Insulators vs. Non-Magnetic States in Twisted Bilayer MoTe
J Yu, J Herzog-Arbeitman, M Wang, O Vafek… - arXiv preprint arXiv …, 2023 - arxiv.org
Fractionally filled Chern bands with strong interactions may give rise to fractional Chern
insulator (FCI) states, the zero-field analogue of the fractional quantum Hall effect. Recent …
insulator (FCI) states, the zero-field analogue of the fractional quantum Hall effect. Recent …
Nearly flat Chern band in periodically strained monolayer and bilayer graphene
The flat band is a key ingredient for the realization of interesting quantum states for
functionalities. In this paper, we investigate the conditions for the flat band in both monolayer …
functionalities. In this paper, we investigate the conditions for the flat band in both monolayer …