Volume 50, Number 1, April I 2000
|Page(s)||101 - 106|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 September 2002|
Nanomechanical resonators operating as charge detectors in the nonlinear regime
Center for NanoScience and Sektion Physik,
Ludwig-Maximilians-Universität Geschwister-Scholl-Platz 1,
80539 München, Germany
Corresponding author: email@example.com
Accepted: 27 January 2000
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– and a thickness of 200 nm. The beams are driven into nonlinear response by an applied modulation at radio frequencies and a static magnetic field in plane. The strong hysteresis of the magnetomotive response allows sensitive charge detection by varying the electrostatic potential of a gate electrode.
PACS: 77.65.Fs – Electromechanical resonance; quartz resonators / 73.40.Gk – Tunneling / 73.23.Hk – Coulomb blockade; single-electron tunneling
© EDP Sciences, 2000
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