title: Axially tunable carbon nanotube resonators using co-integrated microactuators.
abstract: Tuning of the mechanical resonance frequency of single-walled carbon nanotubes (SWCNTs) is achieved by application of uniaxial strain by purely mechanical means, utilizing both directly grown and dry-transferred SWCNTs. The induction of a beam-to-string transition is achieved, resulting in an axial tension sensitivity of 9.4 × 10(10) Hz/ε in the vibrating string regime. Increases in the resonant Q-factor, removal of residual slack, and resonance frequency changes from 10 to 60 MHz are affected.
authors.affiliation: Micro and Nanosystems, Department of Mechanical and Process Engineering, , ETH Zurich , Tannenstrasse 3, 8092, Zurich, Switzerland.
authors.forename: Stuart
authors.initials: S
authors.lastname: Truax
authors.forename: Shih-Wei
authors.initials: SW
authors.lastname: Lee
authors.forename: Matthias
authors.initials: M
authors.lastname: Muoth
authors.forename: Christofer
authors.initials: C
authors.lastname: Hierold
keywords: Carbon nanotube resonator; axial strain; string regime