9 citations · 10 across the 6 of their papers we have counts for
7 papers
Field Response of the Orbital Moment Probed by Integrated Magnetic Circular Dichroism
Qian-Sheng Shi, Ziqiang Wang, Jian Kang +1
Magnetic circular dichroism (MCD) is an optical probe of orbital time reversal symmetry breaking. Although frequency integrated MCD is related to the self-rotation contribution to…
Contribution of remote bands to orbital magnetization in twisted bilayer graphene
Pinzhuo Li, Kun Jiang, Ziqiang Wang +2
Motivated by recent theoretical and experimental works on orbital magnetization for the interacting system, we develop a gauge-invariant framework to compute $M_…
Orbital magnetization and magnetic susceptibility of interacting electrons
Jian Kang, Minxuan Wang, Oskar Vafek
We present a rigorous derivation of the orbital magnetization for interacting electrons within the self-consistent Hartree-Fock approximation. Our method also allows us to derive f…
Extended Fractional Chern Insulators Near Half Flux in Twisted Bilayer Graphene Above the Magic Angle
Joe Finney, Aaron L. Sharpe, Linsey K. Rodenbach +7
Fractional Chern insulators (FCIs) -- the lattice analog of fractional quantum Hall states -- form as fractionalized quasiparticles emerge in a partially-filled Chern band. This fr…
Kekulé Spiral Order from Strained Topological Heavy Fermions
Jonah Herzog-Arbeitman, Dumitru Călugăru, Haoyu Hu +5
The topological heavy fermion (THF) model of twisted bilayer graphene is a framework for treating its strongly interacting topological flat bands. In this work, we employ the THF m…
Analytical solution for the relaxed atomic configuration of twisted bilayer graphene including heterostrain
Jian Kang, Oskar Vafek
Continuum atomic relaxation models for twisted bilayer graphene involve minimization of the sum of intralayer elastic energy and interlayer adhesion energy. The elastic energy favo…
Heavy Fermions as an Efficient Representation of Atomistic Strain and Relaxation in Twisted Bilayer Graphene
Jonah Herzog-Arbeitman, Jiabin Yu, Dumitru Călugăru +5
Although the strongly interacting flat bands in twisted bilayer graphene (TBG) have been approached using the minimal Bistritzer-MacDonald (BM) Hamiltonian, there is mounting evide…