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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Ключевые слова АГРОВОК

hydrostatic pressure

Библиографическая информация

Издатель

Wiley Vch, Reino Unido

Другие темы

Quantum well wires; Gaas/gaalas; Photoionization

Язык

Английский

Формат

6, application/pdf, application/pdf

Лицензия

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

Тип

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

В АГРИСе с: 2024-10-18

Дата изменения: 2025-07-17

Формат: Dublin Core

Поставщик данных

Эту запись предоставил Universidad de Antioquía

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Ссылки

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

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