Magnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wells
The binding energy of Wannier excitons bound to ionized-donor impurities, D+, in GaAs/AlxGa1−xAs quantum-wells, is studied using the effective-mass approximation within a variational approach, as a function of the well width for different barrier heights and growth-direction applied magnetic fields....
- Autores:
- Tipo de recurso:
- Fecha de publicación:
- 2010
- Institución:
- Ministerio de Ciencia, Tecnología e Innovación
- Repositorio:
- Repositorio Minciencias
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.minciencias.gov.co:20.500.14143/18428
- Acceso en línea:
- https://repositorio.minciencias.gov.co/handle/20.500.14143/18428
- Palabra clave:
- Campos magnéticos
Energía mecánica
Campos electromagnéticos
Energía mecánica
- Rights
- License
- http://purl.org/coar/access_right/c_f1cf
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Colombia2018-08-02T22:34:22Z2018-08-02T22:34:22Z2010-11info:eu-repo/date/embargoEnd/2024-01-311386-9477https://repositorio.minciencias.gov.co/handle/20.500.14143/1842810.1016/j.physe.2010.06.021The binding energy of Wannier excitons bound to ionized-donor impurities, D+, in GaAs/AlxGa1−xAs quantum-wells, is studied using the effective-mass approximation within a variational approach, as a function of the well width for different barrier heights and growth-direction applied magnetic fields. Our calculations are devoted to heavy-hole magnetoexcitons. As expected, we found that the binding energy of a heavy-hole exciton bound to a donor-ionized impurity increases with the Al concentration, as well as with the applied magnetic field. Otherwise, we found that it is higher than the corresponding for heavy-hole excitons without impurities reported by other authors. Moreover we found that the binding energy of the heavy-hole exciton bound to a donor-ionized impurity is higher (lower) for larger (smaller) quantum well width. Finally we found that our results are in very good agreement when we compare with experimental and theoretical reports.Departamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colciencias1106-452-21296Control cuántico de las propiedades electrónicas y de espín en nanoestructuras inorgánicas, orgánicas y biológicasnopdf8 páginasengControl cuántico de las propiedades electrónicas y de espín en nanoestructuras inorgánicas, orgánicas y biológicas. La publicación completa está disponible en : <a href="http://repositorio.colciencias.gov.co:80/handle/11146/18424" target="blank">http://repositorio.colciencias.gov.co:80/handle/11146/18424</a>Physica E: Low-dimensional Systems and Nanostructures; Vol. 43, Issue 1, November 2010, pp. 89-92Contiene 17 referencias bibliográficas. Véase el documento adjuntoMagnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wellsArtículo científicoinfo:eu-repo/semantics/articlehttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_2df8fbb1Administradores de ciencia y tecnologíaInvestigadoresCampos magnéticosEnergía mecánicaCampos electromagnéticosEnergía mecánicahttp://purl.org/coar/access_right/c_f1cfVivas Moreno, José JoaquinPorras Montenegro, NelsonUniversidad del Valle, Univallenelmonte@univalle.edu.coPrograma nacional de ciencias básicasComunidad científica colombiana0284-2008Artículos de investigaciónPublicationORIGINAL1-1-1-4-art.pdf1-1-1-4-art.pdfArticulo de Revista Physica E: Low-dimensional Systems and Nanostructuresapplication/pdf2044889https://repositorio.minciencias.gov.co/bitstreams/dbfb4240-cf1f-4188-be7c-1ca6905bd093/download18450cf7cd7790bd6948164237c0e8d8MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.minciencias.gov.co/bitstreams/08813b5b-1c98-4134-957c-95beaa6e0f1b/download8a4605be74aa9ea9d79846c1fba20a33MD52TEXT1-1-1-4-art.pdf.txt1-1-1-4-art.pdf.txtExtracted texttext/plain2https://repositorio.minciencias.gov.co/bitstreams/e60760d5-deb8-4201-bd22-ee73142cd574/downloade1c06d85ae7b8b032bef47e42e4c08f9MD55THUMBNAIL1-1-1-4-art.pdf.jpg1-1-1-4-art.pdf.jpgGenerated Thumbnailimage/jpeg18869https://repositorio.minciencias.gov.co/bitstreams/b7636022-4528-4d52-af1b-b47ede1b3c48/download69469fc5861e81a212f0673d9133dc88MD5620.500.14143/18428oai:repositorio.minciencias.gov.co:20.500.14143/184282023-11-29 17:47:24.073restrictedhttps://repositorio.minciencias.gov.coRepositorio Institucional de Mincienciascendoc@minciencias.gov.co |
dc.title.es_CO.fl_str_mv |
Magnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wells |
title |
Magnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wells |
spellingShingle |
Magnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wells Campos magnéticos Energía mecánica Campos electromagnéticos Energía mecánica |
title_short |
Magnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wells |
title_full |
Magnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wells |
title_fullStr |
Magnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wells |
title_full_unstemmed |
Magnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wells |
title_sort |
Magnetoexcitons bound to ionized-donor impurities in GaAs/AlxGa1−xAs quantum wells |
dc.subject.spines.none.fl_str_mv |
Campos magnéticos Energía mecánica Campos electromagnéticos Energía mecánica |
topic |
Campos magnéticos Energía mecánica Campos electromagnéticos Energía mecánica |
description |
The binding energy of Wannier excitons bound to ionized-donor impurities, D+, in GaAs/AlxGa1−xAs quantum-wells, is studied using the effective-mass approximation within a variational approach, as a function of the well width for different barrier heights and growth-direction applied magnetic fields. Our calculations are devoted to heavy-hole magnetoexcitons. As expected, we found that the binding energy of a heavy-hole exciton bound to a donor-ionized impurity increases with the Al concentration, as well as with the applied magnetic field. Otherwise, we found that it is higher than the corresponding for heavy-hole excitons without impurities reported by other authors. Moreover we found that the binding energy of the heavy-hole exciton bound to a donor-ionized impurity is higher (lower) for larger (smaller) quantum well width. Finally we found that our results are in very good agreement when we compare with experimental and theoretical reports. |
publishDate |
2010 |
dc.date.issued.none.fl_str_mv |
2010-11 |
dc.date.accessioned.none.fl_str_mv |
2018-08-02T22:34:22Z |
dc.date.available.none.fl_str_mv |
2018-08-02T22:34:22Z |
dc.date.embargoEnd.es_CO.fl_str_mv |
info:eu-repo/date/embargoEnd/2024-01-31 |
dc.type.es_CO.fl_str_mv |
Artículo científico |
dc.type.coarversion.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.es_CO.fl_str_mv |
info:eu-repo/semantics/article |
dc.identifier.issn.none.fl_str_mv |
1386-9477 |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.minciencias.gov.co/handle/20.500.14143/18428 |
dc.identifier.doi.none.fl_str_mv |
10.1016/j.physe.2010.06.021 |
identifier_str_mv |
1386-9477 10.1016/j.physe.2010.06.021 |
url |
https://repositorio.minciencias.gov.co/handle/20.500.14143/18428 |
dc.language.iso.es_CO.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.none.fl_str_mv |
Control cuántico de las propiedades electrónicas y de espín en nanoestructuras inorgánicas, orgánicas y biológicas. La publicación completa está disponible en : <a href="http://repositorio.colciencias.gov.co:80/handle/11146/18424" target="blank">http://repositorio.colciencias.gov.co:80/handle/11146/18424</a> |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_f1cf |
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http://purl.org/coar/access_right/c_f1cf |
dc.format.es_CO.fl_str_mv |
pdf |
dc.format.extent.es_CO.fl_str_mv |
8 páginas |
dc.coverage.spatial.es_CO.fl_str_mv |
Colombia |
dc.source.es_CO.fl_str_mv |
Physica E: Low-dimensional Systems and Nanostructures; Vol. 43, Issue 1, November 2010, pp. 89-92 |
institution |
Ministerio de Ciencia, Tecnología e Innovación |
dc.source.bibliographicCitation.es_CO.fl_str_mv |
Contiene 17 referencias bibliográficas. Véase el documento adjunto |
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