Effects of low attenuation in a nanomechanical electron shuttle
2004; American Institute of Physics; Volume: 96; Issue: 3 Linguagem: Inglês
10.1063/1.1767966
ISSN1520-8850
AutoresDominik V. Scheible, Christoph Weiß, Robert H. Blick,
Tópico(s)Force Microscopy Techniques and Applications
ResumoWe have measured the spectral current characteristics of a nanomechanical electron shuttle in a tuning-fork configuration. This particular design enhances the quality factor Q of the nanoelectromechanical system. Comparing the experimental results to a precedingly studied low-Q device, we find a substantially different current behavior, indicating an increase of Q: the current flips direction around the frequency of mechanical resonance. We support our conclusion with a model calculation via a master equation. The device is nanomachined in silicon and shows response up to 0.5GHz at room temperature.
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