Spin Hall effect in clean two dimensional electron gases with Rashba spin-orbit coupling

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dc.creatorReynoso, A.
dc.creatorUsaj, Gonzalo
dc.creatorBalseiro, C. A.
dc.date2005-11-30
dc.date.accessioned2026-07-07T06:49:30Z
dc.date.available2026-07-07T06:49:30Z
dc.descriptionWe study the spin polarization induced by a current flow in clean two dimensional electron gases with Rashba spin-orbit coupling. This geometric effect originates from special properties of the electron's scattering at the edges of the sample. In wide samples, the spin polarization has it largest value at low energies (close to the bottom of the band) and goes to zero at higher energies. In this case, the spin polarization is dominated by the presence of evanescent modes which have an explicit spin component outside the plane. In quantum wires, on the other hand, the spin polarization is dominated by interference effects induced by multiple scattering at the edges. Here, the spin polarization is quite sensitive to the value of the Fermi energy, especially close to the point where a new channel opens up. We analyzed different geometries and found that the spin polarization can be strongly enhanced.
dc.description10 pages, 13 figures, high quality figures available upon request
dc.identifierhttps://arxiv.org/abs/cond-mat/0511750
dc.identifierhttp://arxiv.org/abs/cond-mat/0511750
dc.identifierPhys. Rev. B 73, 115342 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.115342
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104370
dc.subjectMesoscale and Nanoscale Physics
dc.titleSpin Hall effect in clean two dimensional electron gases with Rashba spin-orbit coupling
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