Spin transfer and coherence in coupled quantum wells

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dc.creatorPoggio, M.
dc.creatorSteeves, G. M.
dc.creatorMyers, R. C.
dc.creatorStern, N. P.
dc.creatorGossard, A. C.
dc.creatorAwschalom, D. D.
dc.date2004-06-27
dc.date.accessioned2026-07-07T02:58:52Z
dc.date.available2026-07-07T02:58:52Z
dc.descriptionSpin dynamics of optically excited electrons confined in asymmetric coupled quantum wells are investigated through time resolved Faraday rotation experiments. The inter-well coupling is shown to depend on applied electric field and barrier thickness. We observe three coupling regimes: independent spin precession in isolated quantum wells, incoherent spin transfer between single-well states, and coherent spin transfer in a highly coupled system. Relative values of the inter-well tunneling time, the electron spin lifetime, and the Larmor precession period appear to govern this behavior.
dc.description13 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0406668
dc.identifierhttp://arxiv.org/abs/cond-mat/0406668
dc.identifierPhys. Rev. B 70, 121305(R) (2004)
dc.identifierdoi:10.1103/PhysRevB.70.121305
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24285
dc.subjectMesoscale and Nanoscale Physics
dc.titleSpin transfer and coherence in coupled quantum wells
dc.typetext

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