title: Template-grown metal nanowires as resonators: performance and characterization of dissipative and elastic properties.
abstract: Metal resonators can significantly extend the scope of nanoelectromechanical systems (NEMS) through access to a broader range of electrical, thermal, and surface properties. The material behavior of template-electrodeposited gold (Au) and rhodium (Rh) nanowires (NWs) and their performance as resonators was investigated. Nanowire integration by a bottom-up assembly scheme enabled creation of fixed-free metal beams without distortion or tension. Surprisingly, even a soft metal such as Au yielded viable nanocantilever resonators, with Q-factors of 600-950 in high vacuum, while stiffer RhNW had Q-factors of 1100-1300. NWs with diameter approximately 300 nm yield Young's modulus values of 44 +/- 12 GPa for Au and 222 +/- 70 GPa for Rh, both lower than bulk values. This observation is in agreement with two other measurement techniques.
authors.affiliation: Department of Electrical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
authors.forename: Mingwei
authors.initials: M
authors.lastname: Li
authors.forename: Theresa S
authors.initials: TS
authors.lastname: Mayer
authors.forename: James A
authors.initials: JA
authors.lastname: Sioss
authors.forename: Christine D
authors.initials: CD
authors.lastname: Keating
authors.forename: Rustom B
authors.initials: RB
authors.lastname: Bhiladvala
mesh_terms: D004548:Elasticity; D006046:Gold / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D053770:Nanowires / Q000737:chemistry*; D015203:Reproducibility of Results; D012238:Rhodium / Q000737:chemistry
chemical_list: D006046:Gold; D012238:Rhodium