556 citations · 2.3k across the 38 of their papers we have counts for
6 papers · 1 filter
Field-tuned and zero-field fractional Chern insulators in magic angle graphene
Daniel Parker, Patrick Ledwith, Eslam Khalaf +7
In contrast to the fractional quantum Hall (FQH) effect, where electron density fixes the applied magnetic field, fractional Chern insulators (FCIs) can realize FQH states in compa…
TB or not TB? Contrasting properties of twisted bilayer graphene and the alternating twist -layer structures ()
Patrick J. Ledwith, Eslam Khalaf, Ziyan Zhu +3
The emergence of alternating twist multilayer graphene (ATMG) as a generalization of twisted bilayer graphene (TBG) raises the question - in what important ways do these systems di…
Family of ideal Chern flat bands with arbitrary Chern number in chiral twisted graphene multilayers
Patrick J. Ledwith, Ashvin Vishwanath, Eslam Khalaf
We consider a family of twisted graphene multilayers consisting of -untwisted chirally stacked layers, e.g., AB, ABC, etc, with a single twist on top of -untwisted {chirally…
Fractional Chern insulators in magic-angle twisted bilayer graphene
Yonglong Xie, Andrew T. Pierce, Jeong Min Park +12
Fractional Chern insulators (FCIs) are lattice analogues of fractional quantum Hall states that may provide a new avenue toward manipulating non-abelian excitations. Early theoreti…
Strong Coupling Theory of Magic-Angle Graphene: A Pedagogical Introduction
Patrick J. Ledwith, Eslam Khalaf, Ashvin Vishwanath
We give a self contained review of a recently developed strong coupling theory of magic-angle graphene. An advantage of this approach is that a single formulation can capture both…
Topological charge density waves at half-integer filling of a moiré superlattice
Hryhoriy Polshyn, Yuxuan Zhang, Manish A. Kumar +7
At partial filling of a flat band, strong electronic interactions may favor gapped states harboring emergent topology with quantized Hall conductivity. Emergent topological states…