title: Coupling mechanics to charge transport in carbon nanotube mechanical resonators.
abstract: Nanoelectromechanical resonators have potential applications in sensing, cooling, and mechanical signal processing. An important parameter in these systems is the strength of coupling the resonator motion to charge transport through the device. We investigated the mechanical oscillations of a suspended single-walled carbon nanotube that also acts as a single-electron transistor. The coupling of the mechanical and the charge degrees of freedom is strikingly strong as well as widely tunable (the associated damping rate is approximately 3 x 10(6) Hz). In particular, the coupling is strong enough to drive the oscillations in the nonlinear regime.
authors.affiliation: Centre d'Investigació en Nanociència i Nanotecnologia (Consejo Superior de Investigaciones Científicas-Institut Català de Nanotecnologia), campus Universitat Autònoma de Barcelona, E-08193 Barcelona, Spain.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Lassagne
authors.forename: Yury
authors.initials: Y
authors.lastname: Tarakanov
authors.forename: Jari
authors.initials: J
authors.lastname: Kinaret
authors.forename: Daniel
authors.initials: D
authors.lastname: Garcia-Sanchez
authors.forename: David
authors.initials: D
authors.lastname: Garcia-Sanchez
authors.forename: Adrian
authors.initials: A
authors.lastname: Bachtold