Nonlinear damping in mechanical resonators made from carbon nanotubes and graphene

A. Eichler , J. Moser , J. Chaste , Mariusz Zdrojek , I. Wilson-Rae , A. Bachtold

Abstract

The theory of damping is discussed in Newton's Principia1 and has been tested in objects as diverse as the Foucault pendulum, the mirrors in gravitational-wave detectors and submicrometre mechanical resonators. In general, the damping observed in these systems can be described by a linear damping force. Advances in nanofabrication mean that it is now possible to explore damping in systems with one or more atomic-scale dimensions. Here we study the damping of mechanical resonators based on carbon nanotubes 2-11 and graphene sheets12-15. The damping is found to strongly depend on the amplitude of motion, and can be described by a nonlinear rather than a linear damping force. We exploit the nonlinear nature of damping in these systems to improve the figures of merit for both nanotube and graphene resonators. For instance, we achieve a quality factor of 100,000 for a graphene resonator.
Author A. Eichler - [CSIC-ICN Centro de investigacion en nanociencia y nanotecnologia CIN2]
A. Eichler,,
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, J. Moser - [CSIC-ICN Centro de investigacion en nanociencia y nanotecnologia CIN2]
J. Moser,,
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, J. Chaste - [CSIC-ICN Centro de investigacion en nanociencia y nanotecnologia CIN2]
J. Chaste,,
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, Mariusz Zdrojek (FP / SRD)
Mariusz Zdrojek,,
- Structural Research Division
, I. Wilson-Rae - [Technical University of Munich]
I. Wilson-Rae,,
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, A. Bachtold - [CSIC-ICN Centro de investigacion en nanociencia y nanotecnologia CIN2]
A. Bachtold,,
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Journal seriesNature Nanotechnology, ISSN 17483387, (0 pkt)
Issue year2011
Vol6
No6
Pages339-342
Keywords in Englishcarbon nanotube; graphene, amplitude modulation; article; controlled study; force; nanoelectromechanical system; priority journal, Electrochemistry; Equipment Design; Graphite; Materials Testing; Motion; Nanotechnology; Nanotubes, Carbon; Nonlinear Dynamics; Stress, Mechanical; Vibration
DOIDOI:10.1038/nnano.2011.71
URL http://www.scopus.com/inward/record.url?eid=2-s2.0-79960125858&partnerID=40&md5=cd7fdb037d642c6bdd47b576c9f8f6fd
LanguageEnglish
Score (nominal)0
Score sourcejournalList
Publication indicators Scopus Citations = 385; WoS Citations = 373
Citation count*214 (2015-06-01)
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