Rights statement: © 2019 American Physical Society
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Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Acoustic Damping of Quartz Tuning Forks in Normal and Superfluid $^3$He
AU - Guénault, Tony
AU - Haley, Richard
AU - Kafanov, Sergey
AU - Noble, Theo
AU - Pickett, George
AU - Poole, Malcolm
AU - Schanen, Roch
AU - Tsepelin, Viktor
AU - Vonka, Jakub
AU - Wilcox, Tom
AU - Zmeev, Dmitry
N1 - © 2019 American Physical Society
PY - 2019/9/27
Y1 - 2019/9/27
N2 - We investigate the damping experienced by quartz tuning fork resonators in normal and superfluid 3He as a function of their resonance frequency from 22 kHz to 250 kHz and contrast it with the behavior of the forks in 4He. For our set of tuning forks the low frequency damping in both fluids is well described by the existing hydrodynamic models. We find that the acoustic emission becomes the dominating dissipation mechanism at resonator frequencies exceeding approximately 100 kHz. Our results show that the acoustic emission model used in 4He fluid also describes acoustic damping in superfluid 3He and normal 3He at low temperatures using same geometrical prefactor. The high temperature acoustic damping in normal 3He does not exceed prediction of this model and thus the acoustic damping of moderate frequency devices measured in 4He should be similar or smaller in 3He liquid.
AB - We investigate the damping experienced by quartz tuning fork resonators in normal and superfluid 3He as a function of their resonance frequency from 22 kHz to 250 kHz and contrast it with the behavior of the forks in 4He. For our set of tuning forks the low frequency damping in both fluids is well described by the existing hydrodynamic models. We find that the acoustic emission becomes the dominating dissipation mechanism at resonator frequencies exceeding approximately 100 kHz. Our results show that the acoustic emission model used in 4He fluid also describes acoustic damping in superfluid 3He and normal 3He at low temperatures using same geometrical prefactor. The high temperature acoustic damping in normal 3He does not exceed prediction of this model and thus the acoustic damping of moderate frequency devices measured in 4He should be similar or smaller in 3He liquid.
KW - Quartz Tuning Fork
KW - Mechanical Resonator
KW - liquid $^4$He
KW - Acoustic Emission
KW - liquid $^3$He
KW - Superfluidity
U2 - 10.1103/PhysRevB.100.104526
DO - 10.1103/PhysRevB.100.104526
M3 - Journal article
VL - 100
JO - Physical Review B: Condensed Matter and Materials Physics
JF - Physical Review B: Condensed Matter and Materials Physics
SN - 1098-0121
IS - 10
M1 - 104526
ER -