203 citations · 291 across the 9 of their papers we have counts for
9 papers
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…
Eccentricity effects on the quantum confinement in double quantum rings
J. Costa e Silva, Andrey Chaves, G. A. Farias +2
This work presents a theoretical study of the energy spectrum of GaAs/AlGaAs concentric double quantum rings, under an applied magnetic field directed perpendicular to the ring pla…
Band structure derived properties of HfO2 from first principles calculations
Joelson Cott Garcia, A. T. Lino, L. M. R. Scolfaro +4
The electronic band structures and optical properties of cubic, tetragonal, and monoclinic phases of HfO2 are calculated using the first-principles linear augmented plane-wave meth…
Structural, electronic, and optical properties of ZrO2 from ab initio calculations
Joelson Cott Garcia, L. M. R. Scolfaro, A. T. Lino +6
Structural, electronic, and optical properties for the cubic, tetragonal, and monoclinic crystalline phases of ZrO2, as derived from it ab initio full-relativistic calculations, ar…
Structural Transitions in a Classical Two-Dimensional Molecule System
W. P. Ferreira, G. A. Farias, H. A. Carmona +1
The ground state of a classical two-dimensional (2D) system with finite number of charged particles, trapped by two positive impurities charges localized at a distance (zo) from th…
Polaron effects in electron channels on a helium film
G. A. Farias, R. N. Costa Filho, F. M. Peeters +1
Using the Feynman path-integral formalism we study the polaron effects in quantum wires above a liquid helium film. The electron interacts with two-dimensional (2D) surface phonons…
Exciton trapping in magnetic wire structures
J. A. K. Freire, F. M. Peeters, V. N. Freire +1
The lateral magnetic confinement of quasi two-dimensional excitons into wire like structures is studied. Spin effects are take into account and two different magnetic field profile…
Fine structure of excitons in a quantum well in the presence of a nonhomogeneous magnetic field
J. A. K. Freire, F. M. Peeters, A. Matulis +2
The trapping of excitons in a semiconductor quantum well due to a circular symmetric nonhomogeneous magnetic field is studied. The effect of the spin state of the exciton on its tr…
Confinement of two-dimensional excitons in a non-homogeneous magnetic field
J. A. K. Freire, A. Matulis, F. M. Peeters +2
The effective Hamiltonian describing the motion of an exciton in an external non-homogeneous magnetic field is derived. The magnetic field plays the role of an effective potential…