Self-consistent theory of fractional quantum anomalous Hall states in rhombohedral graphene
The fractional quantum anomalous Hall (FQAH) effect in rhombohedral pentalayer graphene
(PLG) has attracted significant attention due to its potential for observing exotic quantum …
(PLG) has attracted significant attention due to its potential for observing exotic quantum …
Hofstadter spectrum of Chern bands in twisted transition metal dichalcogenides
K Kolář, K Yang, F von Oppen, C Mora - Physical Review B, 2024 - APS
We study the topological bands in twisted bilayer transition metal dichalcogenides in an
external magnetic field. We first focus on a paradigmatic model of WSe 2, which can be …
external magnetic field. We first focus on a paradigmatic model of WSe 2, which can be …
Altermagnetic Instabilities from Quantum Geometry
N Heinsdorf - arXiv preprint arXiv:2410.12789, 2024 - arxiv.org
Altermagnets are a newly identified type of collinear anti-ferromagnetism with vanishing net
magnetic moment, characterized by lifted Kramers' degeneracy in parts of the Brillouin zone …
magnetic moment, characterized by lifted Kramers' degeneracy in parts of the Brillouin zone …
Robust non-Abelian even-denominator fractional Chern insulator in twisted bilayer MoTe
A recent experiment observes a series of quantum Hall effects in transition metal
dichalcogenide moir\'e MoTe $ _2 $[K. Kang, et. al, Nature 628, 522-526 (2024)]. Among …
dichalcogenide moir\'e MoTe $ _2 $[K. Kang, et. al, Nature 628, 522-526 (2024)]. Among …
Fractional Chern insulator candidate on a twisted bilayer checkerboard lattice
We investigate a fractional Chern insulator (FCI) candidate arising from moiré bands with
higher Chern number C= 2 on a magic-angle twisted bilayer checkerboard lattice …
higher Chern number C= 2 on a magic-angle twisted bilayer checkerboard lattice …
A Closed Band-Projected Density Algebra Must be Girvin-MacDonald-Platzman
Z Wang, SH Simon - arXiv preprint arXiv:2410.00969, 2024 - arxiv.org
The band-projected density operators in a Landau level obey the Girvin-MacDonald-
Platzman (GMP) algebra, and a large amount of effort in the study of fractional Chern …
Platzman (GMP) algebra, and a large amount of effort in the study of fractional Chern …
Orbital Description of Landau Levels
We construct a minimal lattice model to provide an orbital description of lowest and first
Landau levels. With the maximally localized Wannier functions with $ s $, $ p_-$, $ p_+ …
Landau levels. With the maximally localized Wannier functions with $ s $, $ p_-$, $ p_+ …
Consecutive Flat Chern Bands and Correlated States in Monolayer Re(Ag)
We theoretically propose that van der Waals monolayer Re (Ag $ X_3 $) $ _2 $($ X= $ Cl,
Br, I) have four consecutive flat Chern bands in the 120$^\circ $ spiral antiferromagnetic …
Br, I) have four consecutive flat Chern bands in the 120$^\circ $ spiral antiferromagnetic …