Connecting higher-order topology with the orbital hall effect in monolayers of transition metal dichalcogenides

M Costa, B Focassio, LM Canonico, TP Cysne… - Physical Review Letters, 2023 - APS
Monolayers of transition metal dichalcogenides (TMDs) in the 2 H structural phase have
been recently classified as higher-order topological insulators (HOTIs), protected by C 3 …

Machine learning for materials discovery: Two-dimensional topological insulators

GR Schleder, B Focassio, A Fazzio - Applied Physics Reviews, 2021 - pubs.aip.org
One of the main goals and challenges of materials discovery is to find the best candidates
for each interest property or application. Machine learning rises in this context to efficiently …

Generation of higher-order topological insulators using periodic driving

AK Ghosh, T Nag, A Saha - Journal of Physics: Condensed …, 2023 - iopscience.iop.org
Topological insulators (TIs) are a new class of materials that resemble ordinary band
insulators in terms of a bulk band gap but exhibit protected metallic states on their …

Orbital magnetoelectric effect in nanoribbons of transition metal dichalcogenides

TP Cysne, FSM Guimarães, LM Canonico, M Costa… - Physical Review B, 2023 - APS
The orbital magnetoelectric effect (OME) generically refers to the appearance of an orbital
magnetization induced by an applied electric field. Here, we show that nanoribbons of …

Ultrathin films of black phosphorus as suitable platforms for unambiguous observation of the orbital Hall effect

TP Cysne, M Costa, MB Nardelli, RB Muniz… - Physical Review B, 2023 - APS
Phosphorene, a monolayer of black phosphorus, is a two-dimensional material that lacks a
multivalley structure in the Brillouin zone and has negligible spin-orbit coupling. This makes …

Hidden breathing kagome topology in hexagonal transition metal dichalcogenides

J Jung, YH Kim - Physical Review B, 2022 - APS
A kagome lattice, formed by triangles of two different directions, is known to have many
emergent quantum phenomena. Under the breathing anisotropy of bond strengths, this …

Density-driven higher-order topological phase transitions in amorphous solids

T Peng, CB Hua, R Chen, ZR Liu, HM Huang, B Zhou - Physical Review B, 2022 - APS
Amorphous topological states, which are independent of the specific spatial distribution of
microscopic constructions, have gained much attention. Recently, higher-order topological …

Cornertronics in two-dimensional second-order topological insulators

Y Han, C Cui, XP Li, TT Zhang, Z Zhang, ZM Yu… - Physical Review Letters, 2024 - APS
Traditional electronic devices rely on the electron's intrinsic degrees of freedom (dof) to
process information. However, additional dof, like the valley, can emerge in the low-energy …

Magnetic high-order topological insulator in 2D layered CrOCl

Z Guo, Y Liu, H Jiang, X Zhang, L **, C Liu… - Materials Today Physics, 2023 - Elsevier
High-order topological insulators (HOTIs) have garnered significant interest in recent years
due to their unique properties, but their material realization has thus far been limited to those …

Second order topology in a band engineered Chern insulator

S Lahiri, S Basu - Scientific Reports, 2024 - nature.com
Haldane model is a celebrated tight binding toy model of a Chern insulator in a 2D
honeycomb lattice that exhibits quantized Hall conductance in the absence of an external …