Resonant Oscillators with Carbon-Nanotube Torsion Springs

S. J. Papadakis, A. R. Hall, P. A. Williams, L. Vicci, M. R. Falvo, R. Superfine, and S. Washburn

Phys. Rev. Lett. 93, 146101 – Published 27 September 2004

Abstract

We report on the characterization of nanometer-scale resonators. Each device incorporates one multiwalled carbon nanotube (MWNT) as a torsional spring. The devices are actuated electrostatically, and their deflections, both low frequency and on resonance, are detected optically. These are some of the smallest electromechanical devices ever created and are a demonstration of practical integrated MWNT-based oscillators. The results also show surprising intershell mechanical coupling behavior in the MWNTs.

Received 19 May 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.146101

Authors & Affiliations

S. J. Papadakis^1,*, A. R. Hall², P. A. Williams¹, L. Vicci³, M. R. Falvo², R. Superfine^1,2,3, and S. Washburn^1,2,3,4

¹Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
²Curriculum in Applied and Materials Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
³Department of Computer Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
⁴Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA

^*Current address: Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland 20723, USA

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Issue

Vol. 93, Iss. 14 — 1 October 2004

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