Are conductance plateaus independent events in atomic point contact measurements ? A statistical approach

Details Are conductance plateaus independent events in atomic point contact measurements ? A statistical approach Are conductance plateaus independent events in atomic point contact measurements ? A statistical approach

2008-05-05

arxiv.org/abs/0805.0538v3

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 5 figures. Accepted for publication in Nanotechnology

Scientific paper

10.1088/0957-4484/19/35/355401

Room temperature conductance-elongation curves of gold atomic wires are measured using a Scanning Tunnelling Microscope Break Junction technique. Landauer's conductance plateaus are individually identified and statistically analysed. Both the probabilities to observe, and the lengths of the two last plateaus (at conductance values close to 2e2/h and 4e2/h) are studied. All results converge to show that the occurrence of these two conductance plateaus on a conductance-elongation curve are statistically independent events.

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