Influence of subband mixing, due to spin-orbit interaction, on the transmission through periodically modulated waveguides

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dc.creatorWang, X. F.
dc.creatorVasilopoulos, P.
dc.date2006-08-16
dc.date.accessioned2026-07-07T07:19:42Z
dc.date.available2026-07-07T07:19:42Z
dc.descriptionBallistic spin transport, through periodically stubbed waveguides, is studied in the presence of a weak spin-orbit interaction (SOI) and the resulting subband mixing. By an appropriate choice of the waveguide length and of the stub parameters injected spin-polarized electrons can be blocked completely and the transmission shows a periodic and nearly square-wave pattern with wide gaps when only one mode is allowed to propagate in the waveguide. Relative to the case when subband mixing is neglected, the transmission changes drastically as a function of the incident electron energy or of the stub height, as it exhibits new peaks or dips, but remains robust as a function of the stubs' degree of asymmetry. Varying the strength of the SOI parameter changes the relative contribution to the total transmission or conductance of the spin-up and spin-down states. The structure considered is a reasonable candidate for establishing a spin transistor.
dc.identifierhttps://arxiv.org/abs/cond-mat/0608371
dc.identifierhttp://arxiv.org/abs/cond-mat/0608371
dc.identifierP.R.B 68, 035305 (2003)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/114723
dc.subjectMesoscale and Nanoscale Physics
dc.titleInfluence of subband mixing, due to spin-orbit interaction, on the transmission through periodically modulated waveguides
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