Electronic states of on- and off-center donors in quantum rings of finite width
The electronic states of a hydrogenic donor in two-dimensional quantum rings are calculated by taking into account the finite width of the potential well in the ring. In addition, a strong magnetic field is applied perpendicular to the quantum ring. Using the effective-mass approximation at the G va...
| Autores: | , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2008 |
| País: | España |
| Institución: | Universidad de Castilla-La Mancha |
| Repositorio: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/41193 |
| Acceso en línea: | https://publons.com/wos-op/publon/7354806/ https://hdl.handle.net/10578/41193 |
| Access Level: | acceso abierto |
| Palabra clave: | Electronic states Impurity and defect levels Quantum rings |
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Electronic states of on- and off-center donors in quantum rings of finite widthde Paula Almeida Lima, RodrigoAmado, MarioElectronic statesImpurity and defect levelsQuantum ringsThe electronic states of a hydrogenic donor in two-dimensional quantum rings are calculated by taking into account the finite width of the potential well in the ring. In addition, a strong magnetic field is applied perpendicular to the quantum ring. Using the effective-mass approximation at the G valley, the radial Hamiltonian for the envelope-function is exactly diagonalized in the case of on-center donors. The corresponding energy levels for different angular momenta are studied as a function of the applied magnetic field. In the case of off-center donors, a perturbation approach is considered and its limitations are discussed. Finally, we calculate the absorption spectra and oscillator strength for different intraband transitions, specifically for on-center donors.Elsevier202520252008info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://publons.com/wos-op/publon/7354806/https://hdl.handle.net/10578/41193reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/411932026-05-27T07:36:41Z |
| dc.title.none.fl_str_mv |
Electronic states of on- and off-center donors in quantum rings of finite width |
| title |
Electronic states of on- and off-center donors in quantum rings of finite width |
| spellingShingle |
Electronic states of on- and off-center donors in quantum rings of finite width de Paula Almeida Lima, Rodrigo Electronic states Impurity and defect levels Quantum rings |
| title_short |
Electronic states of on- and off-center donors in quantum rings of finite width |
| title_full |
Electronic states of on- and off-center donors in quantum rings of finite width |
| title_fullStr |
Electronic states of on- and off-center donors in quantum rings of finite width |
| title_full_unstemmed |
Electronic states of on- and off-center donors in quantum rings of finite width |
| title_sort |
Electronic states of on- and off-center donors in quantum rings of finite width |
| dc.creator.none.fl_str_mv |
de Paula Almeida Lima, Rodrigo Amado, Mario |
| author |
de Paula Almeida Lima, Rodrigo |
| author_facet |
de Paula Almeida Lima, Rodrigo Amado, Mario |
| author_role |
author |
| author2 |
Amado, Mario |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Electronic states Impurity and defect levels Quantum rings |
| topic |
Electronic states Impurity and defect levels Quantum rings |
| description |
The electronic states of a hydrogenic donor in two-dimensional quantum rings are calculated by taking into account the finite width of the potential well in the ring. In addition, a strong magnetic field is applied perpendicular to the quantum ring. Using the effective-mass approximation at the G valley, the radial Hamiltonian for the envelope-function is exactly diagonalized in the case of on-center donors. The corresponding energy levels for different angular momenta are studied as a function of the applied magnetic field. In the case of off-center donors, a perturbation approach is considered and its limitations are discussed. Finally, we calculate the absorption spectra and oscillator strength for different intraband transitions, specifically for on-center donors. |
| publishDate |
2008 |
| dc.date.none.fl_str_mv |
2008 2025 2025 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://publons.com/wos-op/publon/7354806/ https://hdl.handle.net/10578/41193 |
| url |
https://publons.com/wos-op/publon/7354806/ https://hdl.handle.net/10578/41193 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:RUIdeRA. Repositorio Institucional de la UCLM instname:Universidad de Castilla-La Mancha |
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Universidad de Castilla-La Mancha |
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RUIdeRA. Repositorio Institucional de la UCLM |
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RUIdeRA. Repositorio Institucional de la UCLM |
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15,812455 |