| Issue |
Europhys. Lett.
Volume 34, Number 1, April I 1996
|
|
|---|---|---|
| Page(s) | 37 - 42 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00412-2 | |
| Published online | 01 September 2002 | |
Low-temperature anomalies in the dissipation of small mechanical resonators
AT&T Bell Laboratories - 600 Mountain Avenue, Murray Hill, NJ
07974, USA
Received:
16
November
1995
Accepted:
15
February
1996
At very low temperatures the dissipation of a mechanical resonator is
normally expected to be featureless and to vary slowly with temperature.
Here we report measurements made at low-mK temperatures using a simple
single-crystal silicon beam with a smallest dimension of 2.5 
. Contrary to results obtained on larger resonators these data show a
series of dissipation peaks which grow in magnitude with decreasing
temperature. One sample exhibited five distinct peaks with equal spacings
of 7.7 mK.
PACS: 62.40.+i – Anelasticity, internal friction, stress relaxation, and mechanical resonances / 62.65.+k – Acoustical properties of solids / 72.55.+s – Magnetoacoustic effects
© EDP Sciences, 1996
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