Details

Autor(en) / Beteiligte

• Hutchinson, A. B.
• Truitt, P. A.
• Schwab, K. C.
• Sekaric, L.
• Parpia, J. M.
• Craighead, H. G.
• Butler, J. E.

Titel

Dissipation in nanocrystalline-diamond nanomechanical resonators

Ist Teil von

• Applied physics letters, 2004-02, Vol.84 (6), p.972-974

Erscheinungsjahr

2004

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.