Fabrication of Asymmetric Electrode Pairs with Nanometer Separation Made of Two Distinct Metals

Details Fabrication of Asymmetric Electrode Pairs with Nanometer Separation Made of Two Distinct Metals Fabrication of Asymmetric Electrode Pairs with Nanometer Separation Made of Two Distinct Metals

2003-09-15

arxiv.org/abs/cond-mat/0309359v1

Nano Letters (2003).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 figures, 1 color

Scientific paper

We report a simple and reproducible method to fabricate two metallic electrodes made of different metals with a nanometer-sized gap. These electrodes are fabricated by defining a pair of gold electrodes lithographically and electrodepositing a second metal onto one of them. The method enables the fabrication of pairs of metallic electrodes that exhibit distinct magnetic properties or work functions. The utility of this technique is demonstrated by making single-electron tunneling devices incorporating 2-nm gold nanocrystals.

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