Zero-bias anomalies in electrochemically fabricated nanojunctions

Details Zero-bias anomalies in electrochemically fabricated nanojunctions Zero-bias anomalies in electrochemically fabricated nanojunctions

2003-07-22

arxiv.org/abs/cond-mat/0307549v1

Appl. Phys. Lett. 82, 2332-2334 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1063/1.1565678

A streamlined technique for the electrochemical fabrication of metal nanojunctions (MNJs) between lithographically defined electrodes is presented. The first low-temperature transport measurements in such structures reveal suppression of the conductance near zero-bias. The size of the zero-bias anomaly (ZBA) depends strongly on the fabrication electrochemistry and the dimensions of the resulting MNJ. We present evidence that the nonperturbative ZBA in atomic-scale junctions is due to a density of states suppression in the leads.

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