230 citations · 842 across the 23 of their papers we have counts for
23 papers
Electronic and transport properties of anisotropic semiconductor quantum wires
S. M. Cunha, D. R. da Costa, L. C. Felix +2
Within the effective-mass approximation, we theoretically investigated the electronic and transport properties of 2D semiconductor quantum wires (QWs) with anisotropic effective ma…
Plasmons in bias-induced topological phase transition in black phosphorus
D. J. P. de Sousa, L. S. R. Cavalcante, Andrey Chaves +2
We investigate the plasmons in bilayer black phosphorus (BP) with bias-driven formation of Dirac cones, by developing an effective two-band Hamiltonian that captures this electroni…
Conditions for the occurrence of Coulomb blockade in phosphorene quantum dots at room temperature
H. A. Melo, M. A. Lino, D. R. da Costa +4
We study the addition energy spectra of phosphorene quantum dots focusing on the role of dot size, edges passivation, number of layers and dielectric constant of the substrate wher…
Substrate effects on the exciton fine structure of black phosphorus quantum dots
J. S. de Sousa, M. A. Lino, D. R. da Costa +3
We study the size-dependent exciton fine structure in monolayer black phosphorus quantum dots (BPQDs) deposited on different substrates (isolated, Si and SiO) using a combinati…
Interferometry of Klein tunnelling electrons in graphene quantum rings
D. J. P. de Sousa, Andrey Chaves, J. M. Pereira +1
We theoretically study a current switch that exploits the phase acquired by a charge carrier as it tunnels through a potential barrier in graphene. The system acts as an interferom…
Charging energy spectrum of black phosphorus quantum dots
M. A. Lino, J. S. de Sousa, D. R. da Costa +3
We present a theoretical study of the charging effects in single and double layer black phosphorus quantum dots (BPQDs) with lateral sizes of 2 nm and 3 nm. We demonstrate that the…