72 citations · 167 across the 13 of their papers we have counts for
7 papers · 1 filter
Electronic states in a bilayer graphene quantum ripple
M. C. Araújo, A. C. A. Ramos, J. Furtado
In this paper, we investigate the influence of the geometry in the electronic states of a quantum ripple surface. We have considered an electron governed by the spinless stationary…
Position-dependent mass effects on a bilayer graphene catenoid bridge
J. E. G. Silva, J. Furtado, A. C. A. Ramos
We study the electronic properties of a position-dependent effective mass electron on a bilayer graphene catenoid bridge. We propose a position-dependent mass (PDM) as a function o…
Electronic properties of a nanotorus
J. E. G. Silva, J. Furtado, A. C. A. Ramos
In this paper we study the properties of an electron trapped on a torus surface. We consider the influence of surface curvature on the spectrum and the behaviour of the wave functi…
Electronic properties of bilayer graphene catenoid bridge
J. E. G. Silva, J. Saraiva, T. M. Santhiago +2
We study the properties of an electron on a catenoid surface. The catenoid is understood as a realization of a bridge connecting two graphene layer by a smooth surface. The curvatu…
Self-consistent one-dimensional electron system on liquid helium suspended over a nanoscale dielectric substrate
Oleg G. Balev, Antonio Carlos A. Ramos
For electrons above a superfluid helium film suspended on a specially designed dielectric substrate, , we obtain that both the transverse, along , and the lateral, along…
Edge magnetoplasmons in a wide armchair graphene ribbon with a weak superlattice potential: finite frequency gaps and zero group velocity
O. G. Balev, A. C. A. Ramos, H. O. Frota
We show strong effects of a weak and smooth, on the magnetic length, superlattice potential upon edge magnetoplasmons (EMPs) at the armchair edge, with a smooth steplike electrosta…
Transport properties of a 2DEG in the presence of a tilted magnetic field
A. C. A. Ramos, G. A. Farias, R. N. Costa Filho +1
The effect of a tilted dc magnetic field on the transport properties of a two dimensional electron gas (2DEG) is studied. The influence of the component of magnetic field parallel…