We study the electronic states of hexagonal core multishell semiconductor nanowires, including the effect of magnetic fields. We find that the two dimensional electron states formed at the interface between different layers are mostly localized at the six edges of the hexagonal prism, and behave as a set of quasi-1D quantum channels. They can be manipulated by magnetic fields either parallel or perpendicular to the wire axis. These results can be rationalized in terms of Aharonov-Bohm oscillations or Landau level formation. We also show that inter-channel coupling and magnetic behavior is influenced by the geometric details of the nanowires. © 2009 IOP Publishing Ltd.

Electronic and magnetic states in core multishell nanowires: Edge localization, Landau levels and Aharonov-Bohm oscillations / Ferrari, Giulio; Cuoghi, Gianpaolo; Bertoni, Andrea; Goldoni, Guido; Molinari, Elisa. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 193:(2009), p. 012027. ((Intervento presentato al convegno 16th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures (EDISON 16) tenutosi a Montpellier, FRANCE nel AUG 24-28, 2009 [10.1088/1742-6596/193/1/012027].

Electronic and magnetic states in core multishell nanowires: Edge localization, Landau levels and Aharonov-Bohm oscillations

Ferrari, Giulio;Bertoni, Andrea;Goldoni, Guido;Molinari, Elisa
2009

Abstract

We study the electronic states of hexagonal core multishell semiconductor nanowires, including the effect of magnetic fields. We find that the two dimensional electron states formed at the interface between different layers are mostly localized at the six edges of the hexagonal prism, and behave as a set of quasi-1D quantum channels. They can be manipulated by magnetic fields either parallel or perpendicular to the wire axis. These results can be rationalized in terms of Aharonov-Bohm oscillations or Landau level formation. We also show that inter-channel coupling and magnetic behavior is influenced by the geometric details of the nanowires. © 2009 IOP Publishing Ltd.
16th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures (EDISON 16)
Montpellier, FRANCE
AUG 24-28, 2009
193
012027
Ferrari, Giulio; Cuoghi, Gianpaolo; Bertoni, Andrea; Goldoni, Guido; Molinari, Elisa
Electronic and magnetic states in core multishell nanowires: Edge localization, Landau levels and Aharonov-Bohm oscillations / Ferrari, Giulio; Cuoghi, Gianpaolo; Bertoni, Andrea; Goldoni, Guido; Molinari, Elisa. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 193:(2009), p. 012027. ((Intervento presentato al convegno 16th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures (EDISON 16) tenutosi a Montpellier, FRANCE nel AUG 24-28, 2009 [10.1088/1742-6596/193/1/012027].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/1148549
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