Self-oscillations in field emission nanowire mechanical resonators: a nanometric DC-AC conversion

Details Self-oscillations in field emission nanowire mechanical resonators: a nanometric DC-AC conversion Self-oscillations in field emission nanowire mechanical resonators: a nanometric DC-AC conversion

2010-03-30

arxiv.org/abs/1003.5770v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We report the observation of self-oscillations in a bottom-up nanoelectromechanical system (NEMS) during field emission driven by a constant applied voltage. An electromechanical model is explored that explains the phenomenon and that can be directly used to develop integrated devices. In this first study we have already achieved ~50% DC/AC (direct to alternative current) conversion. Electrical self-oscillations in NEMS open up a new path for the development of high speed, autonomous nanoresonators, and signal generators and show that field emission (FE) is a powerful tool for building new nano-components.

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