Spin and Charge Shot Noise in Mesoscopic Spin Hall Systems

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dc.creatorDragomirova, R. L.
dc.creatorZarbo, L. P.
dc.creatorNikolic, B. K.
dc.date2008-04-14
dc.date.accessioned2026-07-07T10:15:34Z
dc.date.available2026-07-07T10:15:34Z
dc.descriptionInjection of unpolarized charge current through the longitudinal leads of a four-terminal two-dimensional electron gas with the Rashba spin-orbit (SO) coupling and/or SO scattering off extrinsic impurities is responsible not only for the pure spin Hall current in the transverse leads, but also for random time-dependent current fluctuations. We employ the scattering approach to current-current correlations in multiterminal nanoscale conductors to analyze the shot noise of transverse pure spin Hall and zero charge current, or transverse spin current and non-zero charge Hall current, driven by unpolarized or spin-polarized longitudinal current, respectively. Since any spin-flip acts as an additional source of noise, we argue that these shot noises offer a unique tool to differentiate between intrinsic and extrinsic SO mechanisms underlying the spin Hall effect in paramagnetic devices.
dc.description5 pages, 2 figures (5 embedded EPS files)
dc.identifierhttps://arxiv.org/abs/0804.2076
dc.identifierhttp://arxiv.org/abs/0804.2076
dc.identifierEurophys. Lett. 84, 37004 (2008).
dc.identifierdoi:10.1209/0295-5075/84/37004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173212
dc.subjectMesoscale and Nanoscale Physics
dc.titleSpin and Charge Shot Noise in Mesoscopic Spin Hall Systems
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