Temperature induced spin coherence dissipation in quantum dots

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dc.creatorHernandez, F. G. G.
dc.creatorGreilich, A.
dc.creatorBrito, F.
dc.creatorWiemann, M.
dc.creatorYakovlev, D. R.
dc.creatorReuter, D.
dc.creatorWieck, A. D.
dc.creatorBayer, M.
dc.date2008-03-11
dc.date2008-06-18
dc.date.accessioned2026-07-07T09:49:46Z
dc.date.available2026-07-07T09:49:46Z
dc.descriptionThe temperature dependence of electron spin coherence in singly negatively charged (In,Ga)As/GaAs quantum dots is studied by time-resolved Faraday rotation. The decoherence time T2 is constant on a microsecond scale for temperatures below 20 K, for higher temperatures it shows a surprisingly sharp drop into the nanoseconds range. The decrease cannot be explained through inelastic scattering with phonons, and may be related with elastic scattering due to phonon-mediated fluctuations of the hyperfine interaction.
dc.description4 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0803.1579
dc.identifierhttp://arxiv.org/abs/0803.1579
dc.identifierPhys. Rev. B 78, 041303(R) (2008)
dc.identifierdoi:10.1103/PhysRevB.78.041303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/164712
dc.subjectMaterials Science
dc.titleTemperature induced spin coherence dissipation in quantum dots
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