title: Stamp transferred suspended graphene mechanical resonators for radio frequency electrical readout.
abstract: We present a simple micromanipulation technique to transfer suspended graphene flakes onto any substrate and to assemble them with small localized gates into mechanical resonators. The mechanical motion of the graphene is detected using an electrical, radio frequency (RF) reflection readout scheme where the time-varying graphene capacitor reflects a RF carrier at f = 5-6 GHz producing modulation sidebands at f ± f(m). A mechanical resonance frequency up to f(m) = 178 MHz is demonstrated. We find both hardening/softening Duffing effects on different samples and obtain a critical amplitude of ~40 pm for the onset of nonlinearity in graphene mechanical resonators. Measurements of the quality factor of the mechanical resonance as a function of dc bias voltage V(dc) indicates that dissipation due to motion-induced displacement currents in graphene electrode is important at high frequencies and large V(dc).
authors.affiliation: Low Temperature Laboratory, School of Science, Aalto University, P.O. Box 15100, FI-00076 Aalto, Finland.
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Song
authors.forename: Mika
authors.initials: M
authors.lastname: Oksanen
authors.forename: Mika A
authors.initials: MA
authors.lastname: Sillanpää
authors.forename: H G
authors.initials: HG
authors.lastname: Craighead
authors.forename: J M
authors.initials: JM
authors.lastname: Parpia
authors.forename: Pertti J
authors.initials: PJ
authors.lastname: Hakonen
mesh_terms: D003217:Conductometry / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006108:Graphite / Q000737:chemistry*; D008422:Materials Testing; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D054802:Molecular Imprinting / Q000379:methods*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D011829:Radiation Dosage; D011846:Radio Waves; D011874:Radiometry / Q000295:instrumentation*
chemical_list: D006108:Graphite