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 …

Multifarious skyrmion phases on a trilayer triangular lattice

S Hayami - Physical Review B, 2022 - APS
The instability toward a magnetic skyrmion crystal in centrosymmetric trilayer magnets is
investigated based on a spin model with layer-dependent Dzayloshinskii-Moriya interaction …

Orbital Hall effect in bilayer transition metal dichalcogenides: From the intra-atomic approximation to the Bloch states orbital magnetic moment approach

TP Cysne, S Bhowal, G Vignale, TG Rappoport - Physical Review B, 2022 - APS
Using an effective Dirac model, we study the orbital Hall effect (OHE) in bilayers of transition
metal dichalcogenides with 2H stacking (2H-TMD). We use first-order perturbation theory in …

Skyrmion crystal and spiral phases in centrosymmetric bilayer magnets with staggered Dzyaloshinskii-Moriya interaction

S Hayami - Physical Review B, 2022 - APS
We theoretically study a stabilization mechanism of the skyrmion crystal in centrosymmetric
magnets with a bilayer structure. We show that the interplay between a layer-dependent …

Orbital Hall effect and topology on a two-dimensional triangular lattice: from bulk to edge

ALR Barbosa, LM Canonico, JH García, TG Rappoport - Physical Review B, 2024 - APS
We investigate a generalized multiorbital tight-binding model on a triangular lattice, a system
prevalent in a wide range of two-dimensional materials and particularly relevant for …

Orbital Hall effect as an alternative to valley Hall effect in gapped graphene

S Bhowal, G Vignale - Physical Review B, 2021 - APS
Gapped graphene has been proposed to be a good platform to observe the valley Hall
effect, a transport phenomenon involving the flow of electrons that are characterized by …

Spin and orbital Edelstein effect in a bilayer system with Rashba interaction

S Leiva-Montecinos, J Henk, I Mertig… - Physical Review …, 2023 - APS
The spin Edelstein effect has proven to be a promising phenomenon to generate spin
polarization from a charge current in systems without inversion symmetry. In recent years, a …

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 …

Orbital angular momentum of Bloch electrons: equilibrium formulation, magneto-electric phenomena, and the orbital Hall effect

R Burgos Atencia, A Agarwal, D Culcer - Advances in Physics: X, 2024 - Taylor & Francis
The investigation of orbital angular momentum (OAM) of delocalised Bloch electrons has
advanced our understanding of magnetic, transport, and optical phenomena in crystals …

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 …