Bercioux, Dario and Governale, Michele and Cataudella, Vittorio and Marigliano Ramaglia, Vincenzo (2005) Rashba effect in quantum networks. [Pubblicazione in rivista scientifica]

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Tipologia del documento: Pubblicazione in rivista scientifica
Titolo: Rashba effect in quantum networks
Autori:
AutoreEmail
Bercioux, Dario[non definito]
Governale, Michele[non definito]
Cataudella, Vittorio[non definito]
Marigliano Ramaglia, Vincenzo[non definito]
Data: 2 Agosto 2005
Tipo di data: Pubblicazione
Numero identificativo: DOI: 10.1103/PhysRevB.72.075305
Titolo del periodico: Physical Review B
Data: 2 Agosto 2005
Volume: 72
Intervallo di pagine: pp. 72305-72313
Numero identificativo: DOI: 10.1103/PhysRevB.72.075305
Settori scientifico-disciplinari del MIUR: Area 02 - Scienze fisiche > FIS/03 - Fisica della materia
Depositato il: 19 Dic 2005
Ultima modifica: 30 Apr 2014 19:22
URI: http://www.fedoa.unina.it/id/eprint/280

Abstract

We present a formalism to study quantum networks made up by single-channel quantum wires in the presence of Rashba spin-orbit coupling and magnetic field. In particular, linear transport through onedimensional and two-dimensional finite-size networks is studied by means of the scattering formalism. In some particular quantum networks, the action of the magnetic field or of the Rashba spin-orbit coupling induces localization of the electron wave function. This phenomenon, which relies on both the quantum-mechanical interference and the geometry of the network, is manifested through the suppression of the conductance for specific values of the spin-orbit-coupling strength or of the magnetic field. Furthermore, the interplay of the Aharonov–Bohm phases and of the non-Abelian phases, introduced by spin-orbit coupling, is discussed in a number of cases.

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