Topological aspects of antiferromagnets

V Bonbien, F Zhuo, A Salimath, O Ly… - Journal of Physics D …, 2021 - iopscience.iop.org
The long fascination that antiferromagnetic materials has exerted on the scientific community
over about a century has been entirely renewed recently with the discovery of several …

Exciton condensation in strongly correlated quantum spin Hall insulators

A Amaricci, G Mazza, M Capone, M Fabrizio - Physical Review B, 2023 - APS
Time-reversal symmetric topological insulators are generically robust with respect to weak
local interaction unless symmetry-breaking transitions take place. Using dynamical mean …

Strongly correlated physics in organic open-shell quantum systems

G Gandus, D Passerone, R Stadler, M Luisier… - arxiv preprint arxiv …, 2022 - arxiv.org
Strongly correlated physics arises due to electron-electron scattering within partially-filled
orbitals, and in this perspective, organic molecules in open-shell configuration are good …

Interplay between destructive quantum interference and symmetry-breaking phenomena in graphene quantum junctions

A Valli, A Amaricci, V Brosco, M Capone - Physical Review B, 2019 - APS
We study the role of electronic spin and valley symmetry in the quantum interference (QI)
patterns of the transmission function in graphene quantum junctions. In particular, we link it …

Quench dynamics and Hall response of interacting Chern insulators

M Schüler, JC Budich, P Werner - Physical Review B, 2019 - APS
We study the coherent nonequilibrium dynamics of interacting two-dimensional systems
after a quench from a trivial to a topological Chern insulator phase. While the many-body …

[HTML][HTML] Stability of destructive quantum interference antiresonances in electron transport through graphene nanostructures

A Valli, T Fabian, F Libisch, R Stadler - Carbon, 2023 - Elsevier
We investigate the stability of destructive quantum interference (DQI) in electron transport
through graphene nanostructures connected to source and drain electrodes. The fingerprint …

Impact of magnetic dopants on magnetic and topological phases in magnetic topological insulators

TMT Tran, DA Le, TM Pham, KTT Nguyen, MT Tran - Physical Review B, 2020 - APS
A topological insulator doped with random magnetic impurities is studied. The system is
modeled by the Kane-Mele model with a random spin exchange between conduction …

Exciton topology and condensation in a model quantum spin Hall insulator

A Blason, M Fabrizio - Physical Review B, 2020 - APS
We study by a consistent mean-field scheme the role on the single-and two-particle
properties of a local electron-electron repulsion in the Bernevig, Hughes, and Zhang model …

Local versus nonlocal correlation effects in interacting quantum spin Hall insulators

L Crippa, A Amaricci, S Adler, G Sangiovanni… - Physical Review B, 2021 - APS
The impact of Coulomb interaction on the electronic properties of a quantum spin Hall
insulator is studied using quantum cluster methods, disentangling local from nonlocal …

Impact of correlations on topology in the Kane-Mele model decorated with impurities

J Skolimowski, W Brzezicki, C Autieri - Physical Review B, 2024 - APS
We propose an effective model for the study of the interplay between correlation and
topology by decorating the Kane-Mele model with a set of localized interacting orbitals …