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Dresden 2009 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 26: Nanostructures at surfaces: Dots, particles, clusters II (SPM)

O 26.5: Vortrag

Dienstag, 24. März 2009, 16:00–16:15, SCH A215

Two level conductance fluctuations investigated with LT-STM — •Alexander Sperl, Jörg Kröger, and Richard Berndt — Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany

Single silver atoms adsorbed on a Ag(111) surface were contacted with the tip of a cryogenic scanning tunneling microscope. At small tip-atom distances we observe fluctuations of the junction conductance between two levels. These two-level fluctuations depend on the applied voltage between tip and sample. An analysis of this behavior will be presented. Funding by the Deutsche Forschungsgemeinschaft through SPP 1153 is acknowledged.

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