2003/11/24 by A. B. Hutchinson, Patrick Truitt, P. A. Truitt +7
Engineering · Physics and Astronomy · #Advanced MEMS and NEMS Technologies #Force Microscopy Techniques and Applications #Mechanical and Optical Resonators #cond-mat
paper · pdf · doi:10.1063/1.1646213
13 pages, 3 figures, to be published in Applied Physics Letters
arxiv created 2003/11/24 · openalex publication_date 2004/02/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 T0.2, 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.