Influence of the Characteristics of the STM-tip on the Electroluminescence Spectra

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dc.creatorCroitoru, M. D.
dc.creatorGladilin, V. N.
dc.creatorFomin, V. M.
dc.creatorDevreese, J. T.
dc.creatorKemerink, M.
dc.creatorKoenraad, P. M.
dc.creatorWolter, J. H.
dc.date2006-01-31
dc.date.accessioned2026-07-07T06:57:51Z
dc.date.available2026-07-07T06:57:51Z
dc.descriptionWe analyze the influence of the characteristics of the STM-tip (applied voltage, tip radius) on the electroluminescence spectra from an STM-tip-induced quantum dot taking into account the many-body effects. We find that positions of electroluminescence peaks, attributed to the electron-hole recombination in the quantum dot, are very sensitive to the shape and size of the confinement potential as determined by the tip radius and the applied voltage. A critical value of the tip radius is found, at which the luminescence peak positions as a function of the tip radius manifest a transition from decreasing behavior for smaller radii to increasing behavior for larger radii. We find that this critical value of the tip radius is related to the confinement in the lateral and normal direction.
dc.description15 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0601693
dc.identifierhttp://arxiv.org/abs/cond-mat/0601693
dc.identifierPhysica E 27, 13 (2005)
dc.identifierdoi:10.1016/j.physe.2004.10.002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/107128
dc.subjectMesoscale and Nanoscale Physics
dc.titleInfluence of the Characteristics of the STM-tip on the Electroluminescence Spectra
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