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Electronic and optical properties of an electro-magnetic non-uniform narrow quantum ring under repulsive scattering centre

dc.creatorSalazar-Santa J.D.
dc.creatorMora-Ramos M.E.
dc.creatorMarín J.H.
dc.date2020
dc.date.accessioned2021-02-05T14:58:13Z
dc.date.available2021-02-05T14:58:13Z
dc.identifier.issn14786435
dc.identifier.urihttp://hdl.handle.net/11407/5948
dc.descriptionNon-uniform height semiconductor quantum rings are studied in order to determine their electronic and optical absorption properties. Theoretical modelling of the structure includes an analytical description of the non-regular multi-hilled confining potential as well as the presence of repulsive scattering centre and external crossing electric and magnetic fields. We have discussed the features of localised and extended (rotational, Aharonov–Bohm-like) states in the presence of the magnetic field. A modification of the spectrum, with the appearance of a Stark-like behaviour, and its corresponding modification related to the repulsive potential is analysed when the electric field effect is considered. In double-hilled structures, these properties of the energy spectrum are of main importance in explaining the apparent optical transparency induced within a certain range of the electric field strength. The presence of the repulsive centre is found to cause a moderate redshift of the light absorption response. © 2020 Informa UK Limited, trading as Taylor & Francis Group.
dc.language.isoeng
dc.publisherTaylor and Francis Ltd.
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85098577474&doi=10.1080%2f14786435.2020.1861356&partnerID=40&md5=264b9305ac74889b4b3607c6126fa204
dc.sourcePhilosophical Magazine
dc.subject71.70.Ejspa
dc.subject73.21.2-bspa
dc.subject75.75.1+aspa
dc.subjectAharonov–Bohm oscillationsspa
dc.subjectlinear and non-linear propertiesspa
dc.subjectnon-uniform height quantum ringspa
dc.subjectpseudopotentialspa
dc.subjectquantum ribbonspa
dc.subjectQuantum ringspa
dc.titleElectronic and optical properties of an electro-magnetic non-uniform narrow quantum ring under repulsive scattering centre
dc.typeArticleeng
dc.rights.accessrightsinfo:eu-repo/semantics/restrictedAccess
dc.identifier.doi10.1080/14786435.2020.1861356
dc.subject.keywordElectric field effectseng
dc.subject.keywordElectromagnetic wave scatteringeng
dc.subject.keywordLight absorptioneng
dc.subject.keywordMagnetic fieldseng
dc.subject.keywordNanoringseng
dc.subject.keywordQuantum confinementeng
dc.subject.keywordAnalytical descriptioneng
dc.subject.keywordElectric and magnetic fieldseng
dc.subject.keywordElectric field strengtheng
dc.subject.keywordElectronic and optical propertieseng
dc.subject.keywordOptical absorption propertieseng
dc.subject.keywordOptical transparencyeng
dc.subject.keywordRepulsive potentialseng
dc.subject.keywordTheoretical modellingeng
dc.subject.keywordOptical propertieseng
dc.publisher.facultyFacultad de Ciencias Básicasspa
dc.affiliationSalazar-Santa, J.D., Grupo Cerámicos y Vítreos, Escuela de Física, Universidad Nacional de Colombia, Medellín, Colombia
dc.affiliationMora-Ramos, M.E., Facultad de Ciencias Básicas, Universidad de Medellín, Medellín, Colombia, Centro de Investigación en Ciencias, Universidad Autónoma del Estado de Morelos, Cuernavaca, Mexico
dc.affiliationMarín, J.H., Grupo Cerámicos y Vítreos, Escuela de Física, Universidad Nacional de Colombia, Medellín, Colombia
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dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.type.driverinfo:eu-repo/semantics/article


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