193 citations · 612 across the 8 of their papers we have counts for
8 papers
Electrically Tunable Interband Collective Excitations in Biased Bilayer and Trilayer Graphene
Tomer Eini, M. F. C. Martins Quintela, J. C. G. Henriques +4
Collective excitations of charged particles under the influence of an electromagnetic field give rise to a rich variety of hybrid light-matter quasiparticles with unique properties…
Excitonic effects in the optical properties of 2D materials: An equation of motion approach
A. J. Chaves, R. M. Ribeiro, T. Frederico +1
We present a unified description of the excitonic properties of four monolayer transition-metal dichalcogenides (TMDC's) using an equation of motion method for deriving the Bethe-S…
Multiple negative differential conductance regions and inelastic phonon assisted tunneling in graphene-hBN-graphene structures
B. Amorim, R. M. Ribeiro, N. M. R. Peres
In this paper we study in detail the effect of the rotational alignment between a hexagonal boron nitride (hBN) slab and the graphene layers in the vertical current of a a graphene…
Efficient graphene-based photodetector with two cavities
A. Ferreira, N. M. R. Peres, R. M. Ribeiro +1
We present an efficient graphene-based photodetector with two Fabri-Pérot cavities. It is shown that the absorption can reach almost 100% around a given frequency, which is determi…
Zigzag graphene nanoribbon edge reconstruction with Stone-Wales defects
J. N. B. Rodrigues, P. A. D. Gonçalves, N. F. G. Rodrigues +3
In this article, we study zigzag graphene nanoribbons with edges reconstructed with Stone-Wales defects, by means of an empirical (first-neighbor) tight-binding method, with parame…
Enhanced Optical Dichroism of Graphene Nanoribbons
F. Hipolito, A. J. Chaves, R. M. Ribeiro +3
The optical conductivity of graphene nanoribbons is analytical and exactly derived. It is shown that the absence of translation invariance along the transverse direction allows con…