Nanomechanical resonators operating as charge detectors in the nonlinear regime

Details Nanomechanical resonators operating as charge detectors in the nonlinear regime Nanomechanical resonators operating as charge detectors in the nonlinear regime

1999-10-21

arxiv.org/abs/cond-mat/9910334v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 6 figures

Scientific paper

10.1209/epl/i2000-00241-3

We present measurements on nanomechanical resonators machined from Silicon-on-Insulator substrates. The resonators are designed as freely suspended Au/Si beams of lengths on the order of 1 - 4 um and a thickness of 200 nm. The beams are driven into nonlinear response by an applied modulation at radio frequencies and a magnetic field in plane. The strong hysteresis of the magnetomotive response allows sensitive charge detection by varying the electrostatic potential of a gate electrode.

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