57 citations · 668 across the 37 of their papers we have counts for
14 papers · 1 filter
Modifications in the photoionization cross-section of a quantum dot with position-dependent effective mass
Carlos Magno O. Pereira, Denise Assafrão, Frankbelson dos S. Azevedo +3
In this work, we investigate the photoionization cross-section of an electron confined in a quantum dot, considering the position-dependent variation of the effective mass through…
Optical and electronic properties of a two-dimensional quantum ring under rotating effects
Daniel F. Lima, Frankbelson dos S. Azevedo, Luís Fernando C. Pereira +2
This work presents a study on the nonrelativistic quantum motion of a charged particle in a rotating frame, considering the Aharonov-Bohm effect and a uniform magnetic field. We de…
Study of electronic properties, Magnetization and persistent currents in a mesoscopic ring by controlled curvature
Luís Fernando C. Pereira, Fabiano M. Andrade, Cleverson Filgueiras +1
We study the model of a noninteracting spinless electron gas confined to the two-dimensional localized surface of a cone in the presence of external magnetic fields. The localized…
Effects of curvature on the electronic states of a two-dimensional mesoscopic ring
Luís Fernando C. Pereira, Fabiano M. Andrade, Cleverson Filgueiras +1
The effects of surface curvature on the motion of electrons in a mesoscopic two-dimensional ring on a cone in the presence of external magnetic fields are examined. The approach fo…
Modifications of electron states, magnetization and persistent current in a quantum dot by controlled curvature
Luis Fernando C. Pereira, Fabiano M. Andrade, Cleverson Filgueiras +1
In this work, we use the thin-layer quantization procedure to study the physical implications due to curvature effects on a quantum dot in the presence of an external magnetic fiel…
Position-dependent mass effects in the electronic transport of two-dimensional quantum systems
Felipe Serafim, F. A. N. Santos, Jonas R. F. Lima +2
In this work, we investigate the electronic transport properties of curved two-dimensional quantum systems with a position-dependent mass (PDM). We found the Schrödinger equation f…
Curved non-interacting two-dimensional electron gas with anisotropic mass
Pedro H. Souza, Edilberto O. Silva, Moises Rojas +1
In the da Costa's thin-layer approach, a quantum particle moving in a 3D sample is confined on a curved thin interface. At the end, the interface effects are ignored and such quant…
Inertial and topological effects on a 2D electron gas
Julio Brandão, Cleverson Filgueiras, Moises Rojas +1
In this work, we study how the combination of rotation and a topological defect can influence the energy spectrum of a two dimensional electron gas in a strong perpendicular magnet…
Torsion effects on Condensed Matter: like a magnetic field but not so much
Anderson A. Lima, Cleverson Filgueiras, Fernando Moraes
In this work, we study the effects of torsion due to a uniform distribution of topological defects (screw dislocations) on free spin/carrier dynamics in elastic solids. When a part…
Influence of a Pseudo Aharonov-Bohm field on the quantum Hall effect in Graphene
Cleverson Filgueiras, Rosinildo Fidelis, Diego Cogollo +1
The effect of an Aharonov-Bohm (AB) pseudo magnetic field on a two dimensional electron gas in graphene is investigated. We consider it modeled as in the usual AB effect but since…
Landau quantization, Aharonov-Bohm effect and two-dimensional pseudoharmonic quantum dot around a screw dislocation
Cleverson Filgueiras, Moisés Rojas, Gilson Aciole +1
In this paper, we investigate the influence of a screw dislocation on the energy levels and the wavefunctions of an electron confined in a two-dimensional pseudoharmonic quantum do…
Inertial-Hall effect: the influence of rotation on the Hall conductivity
Julio E. Brandão, F. Moraes, M. M. Cunha +2
Inertial effects play an important role in classical mechanics but have been largely overlooked in quantum mechanics. Nevertheless, the analogy between inertial forces on mass part…
Landau levels, self-adjoint extensions and Hall conductivity on a cone
A. Poux, L. R. S. Araujo, C. Filgueiras +1
In this work we obtain the Landau levels and the Hall conductivity at zero temperature of a two-dimensional electron gas on a conical surface. We investigate the integer quantum Ha…
Influence of spatially varying pseudo-magnetic field on a 2D electron gas in graphene
L. G. da Silva Leite, D. Cogollo, C. Filgueiras +1
The effect of a varying pseudo-magnetic field, which falls as , on a two dimensional electron gas in graphene is investigated. By considering the second order Dirac equation…