Losses in high quality quartz crystal resonators at cryogenic temperatures

Abstract : Measurement of the mechanical losses of quartz crystal is a topic of interest for communities dealing with the gravitational wave detectors and also the time and frequency domain. About the latter, the authors describe Q-factor measurements of quartz crystal resonators at cryogenic temperatures under 10 K, thanks to a cryocooler-based experimental set-up. A Q-factor of 325 millions at 4 K, on the fifth overtone of the quasilongitudinal mode at 15.9 MHz, has been recorded. As shown, the acoustic wave trapping is suspected to limit the Landau-Rumer regime below 6 K [Landau and Rumer, Phys. Z. Sowjetunion 11, 18 (1937)].
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Submitted on : Tuesday, January 17, 2012 - 8:12:35 AM
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S. Galliou, J. Imbaud, M. Goryachev, R. Bourquin, P. Abbe. Losses in high quality quartz crystal resonators at cryogenic temperatures. Applied Physics Letters, American Institute of Physics, 2011, 98 (9), pp.091911 - 091911-3. ⟨10.1063/1.3559611⟩. ⟨hal-00660543⟩

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