Control of Electron Spin Coherence Using Landau Level Quantization in a Two-Dimensional Electron Gas

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dc.creatorSih, V.
dc.creatorLau, W. H.
dc.creatorMyers, R. C.
dc.creatorGossard, A. C.
dc.creatorFlatté, M. E.
dc.creatorAwschalom, D. D.
dc.date2004-07-26
dc.date.accessioned2026-07-07T02:59:24Z
dc.date.available2026-07-07T02:59:24Z
dc.descriptionTime-resolved optical measurements of electron spin dynamics in modulation doped InGaAs quantum wells are used to explore electron spin coherence times and spin precession frequencies in a regime where an out of plane magnetic field quantizes the states of a two-dimensional electron gas into Landau levels. Oscillatory features in the transverse spin coherence time and effective g-factor as a function of applied magnetic field exhibit a correspondence with Shubnikov-de Haas oscillations, illustrating a coupling between spin and orbital eigenstates. We present a theoretical model in which inhomogeneous dephasing due to the population of different Landau levels limits the spin coherence time and captures the essential experimental results.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0407681
dc.identifierhttp://arxiv.org/abs/cond-mat/0407681
dc.identifierPhys. Rev. B 70, 161313(R) (2004)
dc.identifierdoi:10.1103/PhysRevB.70.161313
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24497
dc.subjectMesoscale and Nanoscale Physics
dc.titleControl of Electron Spin Coherence Using Landau Level Quantization in a Two-Dimensional Electron Gas
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