Disorder induced local density of states oscillations on narrow Ag(111) terraces

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dc.creatorMorgenstern, Karina
dc.creatorRieder, Karl-Heinz
dc.creatorFiete, Gregory A.
dc.date2005-01-18
dc.date.accessioned2026-07-07T03:03:19Z
dc.date.available2026-07-07T03:03:19Z
dc.descriptionThe local density of states of Ag(111) has been probed in detail on disordered terraces of varying width by dI/dV-mapping with a scanning tunneling microscope at low temperatures. Apparent shifts of the bottom of the surface-state band edge from terrace induced confinement are observed. Disordered terraces show interesting contrast reversals in the dI/dV maps as a function of tip-sample voltage polarity with details that depend on the average width of the terrace and the particular edge profile. In contrast to perfect terraces with straight edges, standing wave patterns are observed parallel to the step edges, i.e. in the non-confined direction. Scattering calculations based on the Ag(111) surface states reproduce these spatial oscillations and all the qualitative features of the standing wave patterns, including the polarity-dependent contrast reversals.
dc.description19 pages, 12 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0501435
dc.identifierhttp://arxiv.org/abs/cond-mat/0501435
dc.identifierPhys. Rev. B 71, 155413 (2005)
dc.identifierdoi:10.1103/PhysRevB.71.155413
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25707
dc.subjectMaterials Science
dc.subjectMesoscale and Nanoscale Physics
dc.titleDisorder induced local density of states oscillations on narrow Ag(111) terraces
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