Nanomechanical mass measurement using nonlinear response of a graphene membrane
Department of Applied Physics, Chalmers University of Technology - SE-412, 96 Göteborg, Sweden, EU
Accepted: 2 August 2010
We propose a scheme to measure the mass of a single particle using the nonlinear response of a 2D nanoresonator with degenerate eigenmodes. Using numerical and analytical calculations, we show that by driving a square graphene nanoresonator into the nonlinear regime, simultaneous determination of the mass and position of an added particle is possible. Moreover, this scheme only requires measurements in a narrow frequency band near the fundamental resonance.
PACS: 85.85.+j – Micro- and nano-electromechanical systems (MEMS/NEMS) and devices / 06.30.Dr – Mass and density / 05.45.-a – Nonlinear dynamics and chaos
© EPLA, 2010