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:	Autore Email 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:	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:	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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