Hydrostatic pressure effects on the donor impurity-related photoionization cross-section in cylindrical-shaped GaAs-(Ga,Al)As quantum well-wires

Cepeda Giraldo, Oscar; Porras Montenegro, Nelson; Duque Echeverri, Carlos Alberto

Hydrostatic pressure effects on the donor impurity-related photoionization cross-section in cylindrical-shaped GaAs-(Ga,Al)As quantum well-wires

2004

Cepeda Giraldo, Oscar | Porras Montenegro, Nelson | Duque Echeverri, Carlos Alberto

ABSTRACT: Using a variational method the binding energy has been calculated for a shallow donor impurity and the donor-related photoionization cross-section in 1D and 0D GaAs low-dimensional systems. The dependence on the binding energy and the photoionization cross-section for a hydrogenic donor impurity in the finite potential model are discussed and the results are presented as a function of the radius, polarization of the photon, applied hydrostatic pressure, and photon energy. The calculations for the pressure effects are performed both in the direct and indirect GaAs gap regime. Calculations are presented for an on-axis (on-center) impurity in the wire (in the dot).

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Palabras clave de AGROVOC

hydrostatic pressure

Información bibliográfica

Editorial

Wiley Vch, Reino Unido

Otras materias

Quantum well wires; Gaas/gaalas; Photoionization

Idioma

Inglés

Formato

6, application/pdf, application/pdf

Licencia

https://creativecommons.org/licenses/by/4.0/, https://creativecommons.org/licenses/by/2.5/co/, Atribución 2.5 Colombia (CC BY 2.5 CO), info:eu-repo/semantics/openAccess, http://purl.org/coar/access_right/c_abf2

ISSN

0370-1972, 1521-3951

Tipo

Journal Article; Journal Part; Journal Article; Journal Part; Journal Article; Journal Part; Http://purl.org/coar/version/c_970fb48d4fbd8a85; Journal Article; Journal Part; Info:eu-Repo/semantics/publishedversion

En AGRIS desde: 2024-10-18

Fecha de modificación: 2025-07-17

Formato: Dublin Core

Proveedor de Datos

Este registro bibliográfico ha sido proporcionado por Universidad de Antioquía

Descubra la colección de este proveedor de datos en AGRIS

Enlaces

DOI http://hdl.handle.net/10495/13332

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