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Dissipation in nanocrystalline-diamond nanomechanical resonators

Hutchinson, A. B. and Truitt, P. A. and Schwab, K. C. and Sekaric, L. and Parpia, J. M. and Craighead, H. G. and Butler, J. E. (2004) Dissipation in nanocrystalline-diamond nanomechanical resonators. Applied Physics Letters, 84 (6). pp. 972-974. ISSN 0003-6951. doi:10.1063/1.1646213.

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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.

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Schwab, K. C.0000-0001-8216-4815
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.
Funding AgencyGrant Number
National Security AgencyUNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Subject Keywords:diamond; nanostructured materials; micromechanical resonators; cooling
Issue or Number:6
Record Number:CaltechAUTHORS:20090911-092252757
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:15768
Deposited By: George Porter
Deposited On:14 Sep 2009 16:14
Last Modified:08 Nov 2021 23:22

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