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Aharonov-Bohm oscillations and electron gas transitions in hexagonal core-shell nanowires with an axial magnetic field
dc.contributor.author | Royo Valls, Miguel | |
dc.contributor.author | Segarra, Carlos | |
dc.contributor.author | Bertoni, Andrea | |
dc.contributor.author | Goldoni, Guido | |
dc.contributor.author | Planelles, Josep | |
dc.date.accessioned | 2016-05-09T14:10:30Z | |
dc.date.available | 2016-05-09T14:10:30Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 2469-9950 | |
dc.identifier.issn | 2469-9969 | |
dc.identifier.uri | http://hdl.handle.net/10234/159436 | |
dc.description.abstract | We 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.sponsorShip | Universitat 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 Emilia | ca_CA |
dc.format.extent | 9 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Physical Society | ca_CA |
dc.relation.isPartOf | PHYSICAL REVIEW B 91, 115440 (2015) | ca_CA |
dc.rights | ©2015 American Physical Society | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | single inas nanowires | ca_CA |
dc.subject | multishell nanowires | ca_CA |
dc.subject | quantum confinement | ca_CA |
dc.subject | heterojunction | ca_CA |
dc.subject | states | ca_CA |
dc.subject | level | ca_CA |
dc.title | Aharonov-Bohm oscillations and electron gas transitions in hexagonal core-shell nanowires with an axial magnetic field | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevB.91.115440 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | http://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.115440 | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion | ca_CA |
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