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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 - Response of a mechanical oscillator in solid 4He
AU - Ahlstrom, Sean
AU - Bradley, Ian
AU - Clovecko, Marcel
AU - Guénault, Tony
AU - Guise, Edward Ashley
AU - Haley, Richard
AU - Kolosov, Oleg
AU - Kumar, Mukesh
AU - McClintock, Peter V. E.
AU - Pickett, George
AU - Polturak, E.
AU - Poole, Malcolm
AU - Todoshchenko, Igor A.
AU - Tsepelin, Viktor
AU - Woods, Andrew
N1 - This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
PY - 2014/4
Y1 - 2014/4
N2 - We present the first measurements of the response of a mechanical oscillator in solid 4He. We use a lithium niobate tuning fork operating in its fundamental resonance mode at a frequency of around 30 kHz. Measurements in solid 4He were performed close to the melting pressure. The tuning fork resonance shows substantial frequency shifts on cooling from around 1.5 K to below 10 mK. The response shows an abrupt change at the bcc-hcp transition. At low temperatures, below around 100 mK, the resonance splits into several overlapping resonances.
AB - We present the first measurements of the response of a mechanical oscillator in solid 4He. We use a lithium niobate tuning fork operating in its fundamental resonance mode at a frequency of around 30 kHz. Measurements in solid 4He were performed close to the melting pressure. The tuning fork resonance shows substantial frequency shifts on cooling from around 1.5 K to below 10 mK. The response shows an abrupt change at the bcc-hcp transition. At low temperatures, below around 100 mK, the resonance splits into several overlapping resonances.
KW - Viscoelastic properties
KW - Solid 4He
KW - Tuning fork
U2 - 10.1007/s10909-013-0930-6
DO - 10.1007/s10909-013-0930-6
M3 - Journal article
VL - 175
SP - 140
EP - 146
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
SN - 0022-2291
IS - 1-2
ER -