Publication:
Hydrostatic pressure effects on electron states in GaAs–(Ga,Al) As double quantum rings

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col.comunidadvinculadaComunidad científica colombianaes_CO
col.contrato0284-2008es_CO
col.programa.colcienciasPrograma nacional de ciencias básicases_CO
col.tipo.espArtículos de investigaciónes_CO
dc.audienceAdministradores de ciencia y tecnologíaes_CO
dc.audienceInvestigadoreses_CO
dc.coverage.spatialColombiaes_CO
dc.creatorCulchac, Francisco
dc.creatorPorras Montenegro, Nelson
dc.creatorLatge, Andrea
dc.creator.corporativoUniversidad del Valle, Univallees_CO
dc.creator.mailnelmonte@univalle.edu.coes_CO
dc.date.accessioned2018-08-02T22:34:23Z
dc.date.available2018-08-02T22:34:23Z
dc.date.embargoEndinfo:eu-repo/date/embargoEnd/2024-01-31es_CO
dc.date.issued2009-05
dc.description.abstractHere we address a theoretical analysis of the effects of applied hydrostatic pressure on electron states in concentric GaAs–(Ga,Al)As double quantum rings, under axial magnetic fields. Emphasis is put on the dependence of such effects on the system geometry confinement described within a hard potential model and following an effective-mass approximation. The energy of the ground and excited electronic states were found to decrease with the applied hydrostatic pressure, due mainly to an effective reduction in the barrier potential confinement. Also, while the increase in the magnetic field opens the electron states degeneracy with different angular momenta, the increase in the applied hydrostatic pressure does not alter significantly the energy of these states. For both symmetric and asymmetric double quantum rings, one found that the electron-heavy hole transition energies augment with the applied hydrostatic pressure, mainly due to the increase in the GaAs gap.es_CO
dc.description.isprojectnoes_CO
dc.description.projectid1106-452-21296es_CO
dc.description.projectnameControl cuántico de las propiedades electrónicas y de espín en nanoestructuras inorgánicas, orgánicas y biológicases_CO
dc.description.sponsorshipDepartamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colcienciases_CO
dc.formatpdfes_CO
dc.format.extent8 páginases_CO
dc.identifier.doi10.1063/1.3124643
dc.identifier.urihttps://repositorio.minciencias.gov.co/handle/20.500.14143/18429
dc.language.isoenges_CO
dc.relation.ispartofControl 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.rightsinfo:eu-repo/semantics/embargoedAccesses_CO
dc.sourceJournal of Applied Physics 105; 2009es_CO
dc.source.bibliographicCitationContiene 21 referencias bibliográficas. Véase el documento adjuntoes_CO
dc.subject.spinesEnergía mecánica
dc.subject.spinesElectrones
dc.subject.spinesPartículas
dc.titleHydrostatic pressure effects on electron states in GaAs–(Ga,Al) As double quantum ringses_CO
dc.typeArtículo científicoes_CO
dc.type.driverinfo:eu-repo/semantics/articlees_CO
dc.type.hasversioninfo:eu-repo/semantics/publishedVersiones_CO
dspace.entity.typePublication

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