27 citations · 206 across the 23 of their papers we have counts for
26 papers · 1 filter
Engineering Delocalization in Graphene Nanoribbons via Quasiperiodic Edges and Electronic Interactions
Diego B. Fonseca, Anderson L. R. Barbosa, Luiz Felipe C. Pereira
We investigate localization effects in zigzag graphene nanoribbons with quasiperiodic Fibonacci-type edge extensions, accounting for electron-electron interactions. We employ a tig…
Spin Hall effect in electronic Lévy glasses: Enhanced spin current generation in the superdiffusive regime
Diego B. Fonseca, Luiz Felipe C. Pereira, Anderson L. R. Barbosa
In spintronics, both electronic charge and spin are used to process and store information. Generation, manipulation, and detection of spin currents are essential for the developmen…
Orbital Hall effect in mesoscopic devices
Diego B. Fonseca, Lucas L. A. Pereira, Anderson L. R. Barbosa
We investigate the orbital Hall effect through a mesoscopic device with momentum-space orbital texture that is connected to four semi-infinite terminals embedded in the Landauer-Bü…
A Lévy flight for electrons in graphene: superdiffusive-to-diffusive transport transition
Diego B. Fonseca, Luiz Felipe C. Pereira, Anderson L. R. Barbosa
In this work we propose an electronic Lévy flight device, analogous to a recent optical realization. To that end, we investigate the transmission of electrons in graphene nanoribbo…
Spin Hall angle in single-layer graphene
Juliana M. da Silva, Fernando A. F. Santana, Jorge G. G. S. Ramos +1
We investigate the spin Hall effect in a single-layer graphene device with disorder and interface-induced spin-orbit coupling. Our graphene device is connected to four semi-infinit…
Wave transmission and its universal fluctuations in one-dimensional systems with Lévy-like disorder: Schrödinger, Klein-Gordon and Dirac equations
Anderson L. R. Barbosa, Jonas R. F. Lima, Luiz Felipe C. Pereira
We investigate the propagation of waves in one-dimensional systems with Lévy-type disorder. We perform a complete analysis of non-relativistic and relativistic wave transmission su…