Magnetic states in prismatic core multishell nanowires

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dc.creatorFerrari, Giulio
dc.creatorGoldoni, Guido
dc.creatorBertoni, Andrea
dc.creatorCuoghi, Giampaolo
dc.creatorMolinari, Elisa
dc.date2009-03-26
dc.date.accessioned2026-07-07T13:01:35Z
dc.date.available2026-07-07T13:01:35Z
dc.descriptionWe study the electronic states of core multi-shell semiconductor nanowires, including the effect of strong magnetic fields. We show that the multi-shell overgrowth of a free-standing nanowire, together with the prismatic symmetry of the substrate, may induce quantum confinement of carriers in a set of quasi-1D quantum channels corresponding to the nanowire edges. Localization and inter-channel tunnel coupling are controlled by the curvature at the edges and the diameter of the underlying nanowire. We also show that a magnetic field may induce either Aharonov-Bohm oscillations of the energy levels in the axial configuration, or a dimensional transition of the quantum states from quasi-1D to Landau levels for fields normal to the axis. Explicit predictions are given for nanostructures based on GaAs, InAs, and InGaN with different symmetries.
dc.description13 pages, 4 figures, To be published in Nano Letters
dc.identifierhttps://arxiv.org/abs/0903.4618
dc.identifierhttp://arxiv.org/abs/0903.4618
dc.identifierNano Letters 9, 1631 (2009)
dc.identifierdoi:10.1021/nl803942p
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226199
dc.subjectMesoscale and Nanoscale Physics
dc.titleMagnetic states in prismatic core multishell nanowires
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