Planar nanocontacts with atomically controlled separation

Details Planar nanocontacts with atomically controlled separation Planar nanocontacts with atomically controlled separation

2004-11-19

arxiv.org/abs/cond-mat/0411502v1

Applied Physics Letters, volume 83, page 3782 (2003)

Physics

Condensed Matter

Materials Science

4 pages, 3 figures

Scientific paper

10.1063/1.1623317

We have developed a technology to reproducibly make gaps with distance control on the single atom scale. The gold contacts are flat on the nanometre scale and are fabricated on an oxidized aluminium film that serves as a gate. We show that these contacts are clean and can be stabilized via chemical functionalization. Deposition of conjugated molecules leads to an increase in the gap conductance of several orders of magnitude. Stable current-voltage characteristics at room temperature are slightly nonlinear. At low temperature, they are highly nonlinear and show a clear gate effect.

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