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Published February 9, 2004 | Version Published
Journal Article Open

Dissipation in nanocrystalline-diamond nanomechanical resonators

Creators

  • 1. ROR icon University of Maryland, College Park
  • 2. ROR icon Cornell University
  • 3. ROR icon United States Naval Research Laboratory

Abstract

We have measured the dissipation and frequency of nanocrystalline-diamond nanomechanical resonators with resonant frequencies between 13.7 MHz and 157.3 MHz, over a temperature range of 1.4–274 K. Using both magnetomotive network analysis and a time-domain ring-down technique, we have found the dissipation in this material to have a temperature dependence roughly following T^(0.2), with Q^(–1) ≈ 10^(–4) at low temperatures. The frequency dependence of a large dissipation feature at ~35–55 K is consistent with thermal activation over a 0.02 eV barrier with an attempt frequency of 10 GHz.

Additional Information

© 2004 American Institute of Physics. Received 29 September 2003; accepted 9 December 2003. The authors thank Olivier Buu, Art Vandelay, Elinor Irish, and Hidehiro Yoshida for fruitful discussions. This work was funded by the National Security Agency, DARPA/MTO, and the National Science Foundation.

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Published - HutchinsonApplPhysLett_84_972.pdf

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Additional details

Identifiers

Eprint ID
15768
Resolver ID
CaltechAUTHORS:20090911-092252757

Funding

National Security Agency
Defense Advanced Research Projects Agency (DARPA)
NSF

Dates

Created
2009-09-14
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Updated
2021-11-08
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