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dc.contributor.authorRoyo Valls, Miguel
dc.contributor.authorSegarra Ortí, Carlos
dc.contributor.authorBertoni, Andrea
dc.contributor.authorGoldoni, Guido
dc.contributor.authorPlanelles Fuster, Josep
dc.date.accessioned2016-05-09T14:10:30Z
dc.date.available2016-05-09T14:10:30Z
dc.date.issued2015
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.urihttp://hdl.handle.net/10234/159436
dc.description.abstractWe use spin-density-functional theory within an envelope function approach to calculate electronic states in a GaAs/InAs core-shell nanowire pierced by an axial magnetic field. Our fully three-dimensional quantum modeling includes explicitly a description of the realistic cross section and composition of the sample, and the electrostatic field induced by external gates in two different device geometries: gate-all-around and back-gate. At low magnetic fields, we investigate Aharonov-Bohm oscillations and signatures therein of the discrete symmetry of the electronic system, and we critically analyze recent magnetoconductance observations. At high magnetic fields, we find that several charge and spin transitions occur. We discuss the origin of these transitions in terms of different localization and Coulomb regimes, and we predict their signatures in magnetoconductance experiments.ca_CA
dc.description.sponsorShipUniversitat Jaume I P1-1B2011-01 P1.1B2014-24 MINECO CTQ2011-27324 Generalitat Valenciana Vali+d Grant APOSTD/2013/052 MINECO FPU Grant EU-FP7 Initial Training Network INDEX Universita di Modena e Reggio Emiliaca_CA
dc.format.extent9 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherAmerican Physical Societyca_CA
dc.relation.isPartOfPHYSICAL REVIEW B 91, 115440 (2015)ca_CA
dc.rights©2015 American Physical Societyca_CA
dc.subjectsingle inas nanowiresca_CA
dc.subjectmultishell nanowiresca_CA
dc.subjectquantum confinementca_CA
dc.subjectheterojunctionca_CA
dc.subjectstatesca_CA
dc.subjectlevelca_CA
dc.titleAharonov-Bohm oscillations and electron gas transitions in hexagonal core-shell nanowires with an axial magnetic fieldca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.91.115440
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.115440ca_CA


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