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Multimode probing of superfluid 4He by tuning forks

Research output: Contribution to Journal/Magazine › Letter › peer-review

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Multimode probing of superfluid 4He by tuning forks. / Guthrie, Andrew; Haley, Richard; Jennings, Ash et al.
In: Applied Physics Letters, Vol. 115, No. 11, 113103, 13.09.2019.

Research output: Contribution to Journal/Magazine › Letter › peer-review

Harvard

Guthrie, A, Haley, R, Jennings, A, Kafanov, S, Kolosov, O, Mucientes, M, Noble, T, Pashkin, Y, Pickett, G, Tsepelin, V, Zmeev, D & Efimov, V 2019, 'Multimode probing of superfluid 4He by tuning forks', Applied Physics Letters, vol. 115, no. 11, 113103. https://doi.org/10.1063/1.5121023

APA

Guthrie, A., Haley, R., Jennings, A., Kafanov, S., Kolosov, O., Mucientes, M., Noble, T., Pashkin, Y., Pickett, G., Tsepelin, V., Zmeev, D., & Efimov, V. (2019). Multimode probing of superfluid 4He by tuning forks. Applied Physics Letters, 115(11), Article 113103. https://doi.org/10.1063/1.5121023

Vancouver

Guthrie A, Haley R, Jennings A, Kafanov S, Kolosov O, Mucientes M et al. Multimode probing of superfluid 4He by tuning forks. Applied Physics Letters. 2019 Sept 13;115(11): 113103. doi: 10.1063/1.5121023

Author

Guthrie, Andrew ; Haley, Richard ; Jennings, Ash et al. / Multimode probing of superfluid 4He by tuning forks. In: Applied Physics Letters. 2019 ; Vol. 115, No. 11.

Bibtex

@article{69eb19f3692b4af0943406332f335321,
title = "Multimode probing of superfluid 4He by tuning forks",
abstract = "Flexural mode vibrations of miniature piezoelectric tuning forks (TF) are known to be highly sensitive to superfluid excitations and quantum turbulence in 3He and 4He quantum fluids, as well as to the elastic properties of solid 4He, complementing studies by large scale torsional resonators. Here we explore the sensitivity of a TF, capable of simultaneously operating in both the flexural and torsional modes, to excitations in the normal and superfluid 4He. Thetorsional mode is predominantly sensitive to shear forces at the sensor - fluid interface and much less sensitive to changes in the density of the surrounding fluid when compared to the flexural mode. Although we did not reach thecritical velocity for quantum turbulence onset in the torsional mode, due to its order of magnitude higher frequency and increased acoustic damping, the torsional mode was directly sensitive to fluid excitations, linked to quantum turbulence created by the flexural mode. The combination of two dissimilar modes in a single TF sensor can provide a means to study the details of elementary excitations in quantum liquids, and at interfaces between solids and quantum fluid.",
author = "Andrew Guthrie and Richard Haley and Ash Jennings and Sergey Kafanov and Oleg Kolosov and Marta Mucientes and Theo Noble and Yuri Pashkin and George Pickett and Viktor Tsepelin and Dmitry Zmeev and Viktor Efimov",
year = "2019",
month = sep,
day = "13",
doi = "10.1063/1.5121023",
language = "English",
volume = "115",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Inc.",
number = "11",

}

RIS

TY - JOUR

T1 - Multimode probing of superfluid 4He by tuning forks

AU - Guthrie, Andrew

AU - Haley, Richard

AU - Jennings, Ash

AU - Kafanov, Sergey

AU - Kolosov, Oleg

AU - Mucientes, Marta

AU - Noble, Theo

AU - Pashkin, Yuri

AU - Pickett, George

AU - Tsepelin, Viktor

AU - Zmeev, Dmitry

AU - Efimov, Viktor

PY - 2019/9/13

Y1 - 2019/9/13

N2 - Flexural mode vibrations of miniature piezoelectric tuning forks (TF) are known to be highly sensitive to superfluid excitations and quantum turbulence in 3He and 4He quantum fluids, as well as to the elastic properties of solid 4He, complementing studies by large scale torsional resonators. Here we explore the sensitivity of a TF, capable of simultaneously operating in both the flexural and torsional modes, to excitations in the normal and superfluid 4He. Thetorsional mode is predominantly sensitive to shear forces at the sensor - fluid interface and much less sensitive to changes in the density of the surrounding fluid when compared to the flexural mode. Although we did not reach thecritical velocity for quantum turbulence onset in the torsional mode, due to its order of magnitude higher frequency and increased acoustic damping, the torsional mode was directly sensitive to fluid excitations, linked to quantum turbulence created by the flexural mode. The combination of two dissimilar modes in a single TF sensor can provide a means to study the details of elementary excitations in quantum liquids, and at interfaces between solids and quantum fluid.

AB - Flexural mode vibrations of miniature piezoelectric tuning forks (TF) are known to be highly sensitive to superfluid excitations and quantum turbulence in 3He and 4He quantum fluids, as well as to the elastic properties of solid 4He, complementing studies by large scale torsional resonators. Here we explore the sensitivity of a TF, capable of simultaneously operating in both the flexural and torsional modes, to excitations in the normal and superfluid 4He. Thetorsional mode is predominantly sensitive to shear forces at the sensor - fluid interface and much less sensitive to changes in the density of the surrounding fluid when compared to the flexural mode. Although we did not reach thecritical velocity for quantum turbulence onset in the torsional mode, due to its order of magnitude higher frequency and increased acoustic damping, the torsional mode was directly sensitive to fluid excitations, linked to quantum turbulence created by the flexural mode. The combination of two dissimilar modes in a single TF sensor can provide a means to study the details of elementary excitations in quantum liquids, and at interfaces between solids and quantum fluid.

U2 - 10.1063/1.5121023

DO - 10.1063/1.5121023

M3 - Letter

VL - 115

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 11

M1 - 113103

ER -