Documentos de Vinasco J.A. | REDI

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Mostrando 10 resultados de: 12

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Physica E: Low-Dimensional Systems and Nanostructures(4)

Nanomaterials(2)

Scientific Reports(2)

Superlattices and Microstructures(2)

Optics and Laser Technology(1)

Área temáticas

Electricidad y electrónica(6)

Física aplicada(5)

Física moderna(4)

Área de conocimiento

Mecánica cuántica(9)

Ciencia de materiales(6)

Nanostructura(3)

Semiconductor(2)

Año de Publicación

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Palabras Claves

Binding energy(3)

Donor impurity(3)

Exciton states(2)

Ground state energy(2)

Quantum rings(2)

First Study on the Electronic and Donor Atom Properties of the Ultra-Thin Nanoflakes Quantum Dots

Abstract: Nanoflakes ultra-thin quantum dots are theoretically studied as innovative nanomaterials delivering

Palabras claves:

Binding energy, Donor impurity, Ground state energy, Nanoflakes, Ultra-thin quantum dot

Belamkadem L., Boussetta R., Chnafi M., David Laroze, Duque C.A., Kasapoglu E., Laura M. Pérez, Meziani Y.M., Mommadi O., Moussaouy A.E., Tulupenko V., Vinasco J.A.

Electronic properties and hydrogenic impurity binding energy of a new variant quantum dot

Abstract: In this work, we have studied the electronic states with and without a donor impurity positioned on

Palabras claves:

Binding energy, Donor impurity, Finite difference method, Ground state energy, Variant quantum dot

Belamkadem L., Chnafi M., David Laroze, Duque C.A., Mommadi O., Moussaouy A.E., Vinasco J.A.

Electronic structure of vertically coupled quantum dot-ring heterostructures under applied electromagnetic probes. A finite-element approach

Abstract: We theoretically investigate the electron and hole states in a semiconductor quantum dot-quantum rin

Palabras claves:

David Laroze, Duque C.A., Heyn C., Hieu N.N., Mora-Ramos M.E., Morales A.L., Ojeda J.H., Phuc H.V., Radu A., Restrepo R.L., Tulupenko V., Vinasco J.A.

Exciton states in conical quantum dots under applied electric and magnetic fields

Abstract: Using the effective mass and parabolic band approximations, and the finite element method, we calcul

Palabras claves:

Cone-shaped quantum dot, Coulomb energy, Electric and magnetic field, Exciton lifetime, Exciton states, Quantum rings

David Laroze, Duque C.A., Heyn C., Hieu N.N., Mora-Ramos M.E., Morales A.L., Ojeda J.H., Phuc H.V., Radu A., Restrepo R.L., Tulupenko V., Vinasco J.A.

Effects of intense laser field and position dependent effective mass in Razavy quantum wells and quantum dots

Abstract: Using the effective mass and parabolic band approximations, we investigated the position-dependent e

Palabras claves:

Intense laser field, Position dependent effective mass, Razavy quantum dot, Razavy quantum well

David Laroze, Duque C.A., Kasapoglu E., Sari H., Sökmen I., Vinasco J.A.

Hydrostatic pressure and temperature effects on spectrum of an off-center single dopant in a conical quantum dot with spherical edge

Abstract: In this paper we have studied the spectrum of an off-center donor impurity confined in the GaAs coni

Palabras claves:

Conical quantum dot with spherical edge, Diamagnetic susceptibility, Dipole moment, Hydrostatic pressure, Impurity binding energy, TEMPERATURE

Belamkadem L., Boussetta R., Chnafi M., David Laroze, Duque C.A., El Hadi M., Falyouni F., Mommadi O., Mora-Rey F., Moussaouy A.E., Vinasco J.A.

Optical properties and conductivity of biased GaAs quantum dots

Abstract: We report the intraband optical absorption influence on the tunneling currents in biased gallium ars

Palabras claves:

absorption coefficient, Electrical conductivity, Intraband transitions, quantum dots, Tunnel effect

Aqiqi S., David Laroze, Duque C.A., Gil-Corrales J.A., Morales A.L., Radu A., Vinasco J.A.

Tunneling influence on the intersubband optical absorption coefficient and refraction index in biased GaAs/AlGaAs quantum well wires

Abstract: We investigate the tunnel effect influence on the intersubband optical absorption and refraction in

Palabras claves:

absorption coefficient, electric field, Intersubband transition, Quantum well wire, Refraction index, SEMICONDUCTOR, Tunnel effect

Aqiqi S., David Laroze, Duque C.A., Radu A., Vinasco J.A.

Shallow donor impurity states with excitonic contribution in GaAs/AlGaAs and CdTe/CdSe truncated conical quantum dots under applied magnetic field

Abstract: Using the effective mass approximation in a parabolic two-band model, we studied the effects of the

Palabras claves:

Applied magnetic field, Donor-impurity states, Exciton states, Truncated conical quantum dots, Type II quantum dots

David Laroze, Duque C.A., Gil-Corrales J.A., Kasapoglu E., Morales A.L., Pulgar-Velásquez L., Radu A., Restrepo R.L., Sierra-Ortega J., Vinasco J.A.

Revisiting the adiabatic approximation for bound states calculation in axisymmetric and asymmetrical quantum structures

Abstract: The Schrödinger equation in the effective mass approximation is commonly used to calculate the elect

Palabras claves:

Adiabatic approximation, Excited levels, Finite Element Method, quantum dots, Quantum rings, symmetry

David Laroze, Duque C.A., Feddi E.M., Mora-Ramos M.E., Morales A.L., Radu A., Restrepo R.L., Tiutiunnyk A., Vinasco J.A.