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Physical Review Letters
Paper

Atomic emission from a gold scanning-tunneling-microscope tip

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Abstract

We have demonstrated that a gold scanning-tunneling-microscope tip can be used as a miniature solid-state emission source for directly depositing nanometer-size gold structures. The emission mechanism is believed to be field evaporation of tip atoms, which is enhanced by the close proximity of the substrate. The technique has been used in air on Ag(111) surfaces to write several thousand features with no apparent degradation of the tipes ability to emit atoms. © 1990 The American Physical Society.

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Physical Review Letters

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