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 http://resolver.caltech.edu/CaltechAUTHORS:20090911-092252757
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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.
| Item Type: | Article | ||||||||
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| 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. # 85.85.+j Micro- and nano-electromechanical systems (MEMS/NEMS) and devices # 07.10.Cm Micromechanical devices and systems | ||||||||
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| Subject Keywords: | diamond; nanostructured materials; micromechanical resonators; cooling | ||||||||
| Record Number: | CaltechAUTHORS:20090911-092252757 | ||||||||
| Persistent URL: | http://resolver.caltech.edu/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 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | George Porter | ||||||||
| Deposited On: | 14 Sep 2009 16:14 | ||||||||
| Last Modified: | 26 Dec 2012 11:21 |
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