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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Item Type:	Pubblicazione in rivista scientifica
Title:	Rashba effect in quantum networks
Creators:	Creators Email Bercioux, Dario UNSPECIFIED Governale, Michele UNSPECIFIED Cataudella, Vittorio UNSPECIFIED Marigliano Ramaglia, Vincenzo UNSPECIFIED
Date:	2 August 2005
Date Type:	Publication
Identification Number:	10.1103/PhysRevB.72.075305
Journal or Publication Title:	Physical Review B
Date:	2 August 2005
Volume:	72
Page Range:	pp. 72305-72313
Identification Number:	10.1103/PhysRevB.72.075305
Settori scientifico-disciplinari del MIUR:	Area 02 - Scienze fisiche > FIS/03 - Fisica della materia
Date Deposited:	19 Dec 2005
Last Modified:	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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