Negative differential conductance in quantum dots in theory and experiment

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dc.creatorRogge, M. C.
dc.creatorCavaliere, F.
dc.creatorSassetti, M.
dc.creatorHaug, R. J.
dc.creatorKramer, B.
dc.date2005-07-01
dc.date.accessioned2026-07-07T07:38:44Z
dc.date.available2026-07-07T07:38:44Z
dc.descriptionExperimental results for sequential transport through a lateral quantum dot in the regime of spin blockade induced by spin dependent tunneling are compared with theoretical results obtained by solving a master equation for independent electrons. Orbital and spin effects in electron tunneling in the presence of a perpendicular magnetic field are identified and discussed in terms of the Fock-Darwin spectrum with spin. In the nonlinear regime, a regular pattern of negative differential conductances is observed. Electrical asymmetries in tunnel rates and capacitances must be introduced in order to account for the experimental findings. Fast relaxation of the excited states in the quantum dot have to be assumed, in order to explain the absence of certain structures in the transport spectra.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0507036
dc.identifierhttp://arxiv.org/abs/cond-mat/0507036
dc.identifierNew Journal of Physics 8, 298 (2006)
dc.identifierdoi:10.1088/1367-2630/8/12/298
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/121196
dc.subjectMesoscale and Nanoscale Physics
dc.titleNegative differential conductance in quantum dots in theory and experiment
dc.typetext

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