159 citations · 758 across the 27 of their papers we have counts for
26 papers
Staggered orbital magnetization from itinerant electrons: orbital antiferro- and ferrimagnetic phases
Lucas L. Lage, Kevin J. U. Vidarte, Tarik P. Cysne +3
Because electronic orbital angular momentum in solids is inherently non-local, its contribution to magnetism is usually cast in terms of a net orbital magnetization. Here, we show…
Real-space topology and charge order in the Haldane-Holstein Model
Sebastião dos Anjos Sousa-Júnior, Julián Faúndez, Tarik P. Cysne +2
We study the half-filled Haldane-Holstein model, where a paradigmatic Chern insulator is coupled to fully dynamical phonons, and provide an unbiased characterization of how retarde…
Real-Space Spectral Approach to Orbital Magnetization
Kevin J. U. Vidarte, Henrique P. Veiga, João M. Viana Parente Lopes +4
We present a real-space spectral method for computing the orbital magnetization of crystals. Starting from the commutator form of the orbital magnetization operator, we formulate a…
Orbital Hall effect from orbital magnetic moments of Bloch states: the role of a new correction term
Tarik P. Cysne, Ivo Souza, Tatiana G. Rappoport
We present a rigorous derivation of the matrix elements of the orbital magnetic moment (OMM) of Bloch states. Our calculations include the Berry connection term in the k-derivative…
Orbital magnetization in Sierpinski fractals
L. L. Lage, Tarik. P. Cysne, A. Latgé
Orbital magnetization (OM) in Sierpinski carpet (SC) and triangle (ST) fractal is theoretically investigated by using Haldane model as a prototypical example. The OM calculation is…
Topological Phases in Fractals: Local Spin Chern Marker in the Sierpinski carpet Kane-Mele-Rashba Model
L. L. Lage, A. B. Félix, S. dos A. Sousa-Júnior +2
We study the spectral properties and local topology of the Kane-Mele-Rashba model on a Sierpinski Carpet (SC) fractal, constructed from a rectangular flake with an underlying honey…
Anisotropic resonance energy transfer with strained phosphorene
J. Oliveira-Cony, C. Farina, P. P. Abrantes +1
We analyze the resonance energy transfer (RET) rate between quantum emitters (QEs) near a phosphorene/SiC interface under the effects of uniaxial strain. Using a low-energy tight-b…
Orbitronics in Two-dimensional Materials
Tarik P. Cysne, Luis M. Canonico, Marcio Costa +2
Orbitronics explores the control and manipulation of electronic orbital angular momentum in solid-state systems, opening new pathways for information processing and storage. One si…
Topological characterization of modified Kane-Mele-Rashba models via local spin Chern marker
Sebastião dos Anjos Sousa Júnior, Marcus V. de S. Ferraz, José P. de Lima +1
In this work, we use the local spin Chern marker (LSCM) recently introduced by Baù and Marrazzo [Phys. Rev. B 110, 054203 (2024)] to analyze the topology of the ground-state electr…
Transport of orbital currents in systems with strong intervalley coupling: the case of Kekulé distorted graphene
Tarik P. Cysne, R. B. Muniz, Tatiana G. Rappoport
We show that orbital currents can describe the transport of orbital magnetic moments of Bloch states in models where the formalism based on valley current is not applicable. As a c…
Controlling the orbital Hall effect in gapped bilayer graphene in the terahertz regime
Tarik P. Cysne, W. J. M. Kort-Kamp, Tatiana G. Rappoport
We study the orbital Hall effect (OHE) in the AC regime using bilayer graphene (BLG) as a prototypical material platform. While the unbiased BLG has gapless electronic spectra, app…
The impact of Rashba spin-orbit coupling in charge-ordered systems
Rodrigo A. Fontenele, Sebastião dos Anjos Sousa-Júnior, Tarik P. Cysne +1
We study the impact of the Rashba spin-orbit coupling (RSOC) on the stability of charge-density wave (CDW) in systems with large electron-phonon coupling (EPC). Here, the EPC is co…
Controlling electric and magnetic Purcell effects in phosphorene via strain engineering
P. P. Abrantes, W. J. M. Kort-Kamp, F. S. S. Rosa +3
We investigate the spontaneous emission lifetime of a quantum emitter near a substrate coated with phosphorene under the influence of uniaxial strain. We consider both electric dip…
Ultrathin films of black phosphorus as suitable platforms for unambiguous observation of the orbital Hall effect
Tarik P. Cysne, Marcio Costa, Marco Buongiorno Nardelli +2
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 ma…
Orbital magnetoelectric effect in nanoribbons of transition metal dichalcogenides
Tarik P. Cysne, Filipe S. M. Guimarães, Luis M. Canonico +3
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 tr…
Generation and control of non-local chiral currents in graphene superlattices by orbital Hall effect
Juan Salvador-Sánchez, Luis M. Canonico, Ana Pérez-Rodríguez +15
Graphene-based superlattices offer a new materials playground to exploit and control a higher number of electronic degrees of freedom, such as charge, spin, or valley for disruptiv…
Connecting Higher-Order Topology with the Orbital Hall Effect in Monolayers of Transition Metal Dichalcogenides
Marcio Costa, Bruno Focassio, Tarik P. Cysne +5
Monolayers of transition metal dichalcogenides (TMDs) in the 2H structural phase have been recently classified as higher-order topological insulators (HOTI), protected by rot…
Orbital Hall effect in bilayer transition metal dichalcogenides: From the intra-atomic approximation to the Bloch states orbital magnetic moment approach
Tarik P. Cysne, Sayantika Bhowal, Giovanni Vignale +1
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 th…
Probing topological phase transitions via quantum reflection in the graphene family materials
P. P. Abrantes, Tarik P. Cysne, D. Szilard +3
We theoretically investigate the quantum reflection of different atoms by two-dimensional (2D) materials of the graphene family (silicene, germanene, and stanene), subjected to an…
Orbital magnetoelectric effect in zigzag nanoribbons of p-band systems
Tarik P. Cysne, Filipe S. M. Guimarães, Luis M. Canonico +2
Profiles of the spin and orbital angular momentum accumulations induced by a longitudinally applied electric field are explored in nanoribbons of -band systems with a honeycomb…
Disentangling orbital and valley Hall effects in bilayers of transition metal dichalcogenides
Tarik P. Cysne, Marcio Costa, Luis M. Canonico +3
It has been recently shown that monolayers of transition metal dichalcogenides (TMDs) in the 2H structural phase exhibit relatively large orbital Hall conductivity plateaus within…
Orbital Hall Insulating Phase in Transition Metal Dichalcogenide Monolayers
Luis M. Canonico, Tarik P. Cysne, Alejandro Molina-Sanchez +2
We show that H-phase transition metal dichalcogenides (TMDs) monolayers such as MoS and WSe, are orbital Hall insulators. They present very large orbital Hall conductivity…
Two-dimensional orbital Hall insulators
Luis M. Canonico, Tarik P. Cysne, Tatiana G. Rappoport +1
The orbital-Hall effect (OHE), similarly to the spin-Hall effect (SHE), refers to the creation of a transverse flow of orbital angular momentum that is induced by a longitudinally…
Tuning quantum reflection in graphene with an external magnetic field
Marcius Silvestre, Tarik P. Cysne, Daniela Szilard +2
We theoretically demonstrate that an external magnetic field can be used to control quantum reflection of matter waves in graphene due to its extraordinary magneto-optical properti…