666 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidade Federal do Rio de JaneiroBR289 papers
- Universidade de São PauloBR215 papers
- Centro Brasileiro de Pesquisas FísicasBR188 papers
- Centre National de la Recherche ScientifiqueFR165 papers
- Universidade Estadual de Campinas (UNICAMP)BR156 papers
- Universidade Federal do ABCBR123 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT103 papers
- Radboud University NijmegenNL103 papers
- Universidad Nacional Autónoma de MéxicoMX101 papers
- Universidade do Estado do Rio de JaneiroBR98 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR94 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR94 papers
152 papers · 1 filter
Topology as a Design Variable for Multiproperty Engineering in Synthesized 4-5-6-8 Carbon Nanoribbons
Djardiel da S. Gomes, Isaac M. Felix, Lucas L. Lage +3
Nonbenzenoid carbon frameworks expand low-dimensional material design via controlled asymmetry. Here, we show the experimentally realized 4-5-6-8 carbon nanoribbon establishes a to…
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…
Emergent Hierarchy in Localized States of Organic Quantum Chains
L. L. Lage, A. B. Félix, D. S. Gomes +2
Organic Quantum Chains (OQCs) represent a newly synthesized class of carbon-based nanostructures whose quasi-one-dimensional nature gives rise to unconventional electronic and tran…
Revisiting the Poor Man's Majoranas: The Spin-Exchange Induced Spillover Effect
J. E. Sanches, T. M. Sobreira, L. S. Ricco +2
We give a review on Poor Man's Majorana (PMM) modes, which are theoretically established in the minimal Kitaev chain implementation consisting of two grounded, spinless quantum dot…
Spin-Exchange Induced Spillover on Poor Man's Majoranas in Minimal Kitaev Chains
J. E. Sanches, L. T. Lustosa, L. S. Ricco +5
The "Poor Man's Majoranas" (PMMs) [Phys. Rev. B 86, 134528 (2012)] devoid of topological protection can "spill over" from one edge into another of the minimal Kitaev chain when per…
Impact of Broken Inversion Symmetry on Molecular States in multi-Weyl fermions
W. C. Silva, J. E. Sanches, D. S. Rojo +6
We study inversion-symmetry (IS) breaking in impurity dimers coupled to topological multi-Weyl systems in the low-energy dispersion domain. In the IS-preserved multi-Weyl semimetal…
Sliding-induced topological transitions in bilayer biphenylene
L. L. Lage, S. Bravo, O. Arroyo-Gascón +2
Sliding-induced topological transitions in biphenylene bilayers are investigated, considering various stacking configurations which are analyzed from a symmetry perspective and des…
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…
Enhancement of Electric Drive in Silicon Quantum Dots with Electric Quadrupole Spin Resonance
Philip Y. Mai, Pedro H. Pereira, Lucas Andrade Alonso +19
Quantum computation with electron spin qubits requires coherent and efficient manipulation of these spins, typically accomplished through the application of alternating magnetic or…
Universal scaling of electrostatic effects of a curved counter-electrode on the emitter field enhancement
Thiago A. de Assis, Fernando F. Dalll'Agnol
Experiments on field electron emission from single-tip nanoemitters have typically been carried out using a counter-electrode with a finite curvature radius , positioned at a di…
Quasicrystalline 30 twisted bilayer graphene: Fractal patterns and electronic localization properties
Kevin J. U. Vidarte, Caio Lewenkopf
The recently synthesized 30 twisted bilayer graphene (30-TBG) systems are unique quasicrystal systems possessing dodecagonal symmetry with graphene's relativistic p…
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…
Stoner ferromagnetism in low-angle twisted bilayer graphene at three-quarters filling
Kevin J. U. Vidarte, Felipe Pérez Riffo, Eric Suárez Morell +1
We present a theoretical investigation of the magnetic properties exhibited by twisted bilayer graphene (TBG) systems with small twist angles, where the appearance of flat miniband…
Robustness of type-II Dirac cones in biphenylene-based structures
L. L. Lage, O. Arroyo-Gascón, Leonor Chico +1
The electronic properties of one- and two-dimensional biphenylene-based systems, such as nanoribbons and bilayers, are studied within a unified approach. Besides the bilayer with d…
Corner and Edge States in Topological Sierpinski Carpet Systems
L. L. Lage, N. C. Rappe, A. Latgé
Fractal lattices, with their self-similar and intricate structures, offer potential platforms for engineering physical properties on the nanoscale and also for realizing and manipu…
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…
Structure-driven phase transitions in paracrystalline topological insulators
Victor Regis, Victor Velasco, Marcello B. Silva Neto +1
We study phase transitions driven by structural disorder in noncrystalline topological insulators. We introduce a procedural generation algorithm, the Perlin noise, typically used…
Design of spin-orbital-textures in ferromagnetic/topological insulator interfaces
A. L. Araújo, F. Crasto de Lima, C. H. Lewenkopf +1
Spin-orbital textures in topological insulators due to the spin locking with the electron momentum, play an important role in spintronic phenomena that arise from the interplay bet…
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…
Breakdown of topological protection due to non-magnetic edge disorder in two-dimensional materials in the Quantum Spin Hall phase
Leandro R. F. Lima, Caio Lewenkopf
We study the suppression of the conductance quantization in quantum spin Hall systems by a combined effect of electronic interactions and edge disorder, that is ubiquitous in exfol…
High-energy Landau levels in graphene beyond nearest-neighbor hopping processes: Corrections to the effective Dirac Hamiltonian
Kevin J. U. Vidarte, Caio Lewenkopf
We study the Landau level spectrum of bulk graphene monolayers beyond the Dirac Hamiltonian with linear dispersion. We consider an effective Wannier-like tight-binding model obtain…