Detecting a phonon flux in superfluid He-4 by a nanomechanical resonator

Physics

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FST Sustainability Advisory Committee

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Rights statement: © 2020 American Physical Society
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https://doi.org/10.1103/PhysRevB.101.060503
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Detecting a phonon flux in superfluid He-4 by a nanomechanical resonator. / Guenault, A. M.; Guthrie, A.; Haley, R. P. et al.
In: Physical review B, Vol. 101, No. 6, 060503, 11.02.2020.

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

Bibtex

@article{dd6fa3afce7e4413bddb5c417642b283,

title = "Detecting a phonon flux in superfluid He-4 by a nanomechanical resonator",

abstract = "Nanoscale mechanical resonators are widely utilized to provide high sensitivity force detectors. Here we demonstrate that such high-quality-factor resonators immersed in superfluid He-4 can be excited by a modulated flux of phonons. A nanosized heater immersed in superfluid He-4 acts as a source of ballistic phonons in the liquid-{"}phonon wind{"}. When the modulation frequency of the phonon flux matches the resonance frequency of the mechanical resonator, the motion of the latter can be excited. This ballistic thermomechanical effect can potentially open up new types of experiments in quantum fluids.",

keywords = "EXCITATIONS",

author = "Guenault, {A. M.} and A. Guthrie and Haley, {R. P.} and S. Kafanov and Pashkin, {Yu. A.} and Pickett, {G. R.} and V. Tsepelin and Zmeev, {D. E.} and E. Collin and R. Gazizulin and O. Maillet",

note = "{\textcopyright} 2020 American Physical Society ",

year = "2020",

month = feb,

day = "11",

doi = "10.1103/PhysRevB.101.060503",

language = "English",

volume = "101",

journal = "Physical review B",

issn = "2469-9950",

publisher = "AMER PHYSICAL SOC",

number = "6",

}

RIS

TY - JOUR

T1 - Detecting a phonon flux in superfluid He-4 by a nanomechanical resonator

AU - Guenault, A. M.

AU - Guthrie, A.

AU - Haley, R. P.

AU - Kafanov, S.

AU - Pashkin, Yu. A.

AU - Pickett, G. R.

AU - Tsepelin, V.

AU - Zmeev, D. E.

AU - Collin, E.

AU - Gazizulin, R.

AU - Maillet, O.

PY - 2020/2/11

Y1 - 2020/2/11

N2 - Nanoscale mechanical resonators are widely utilized to provide high sensitivity force detectors. Here we demonstrate that such high-quality-factor resonators immersed in superfluid He-4 can be excited by a modulated flux of phonons. A nanosized heater immersed in superfluid He-4 acts as a source of ballistic phonons in the liquid-"phonon wind". When the modulation frequency of the phonon flux matches the resonance frequency of the mechanical resonator, the motion of the latter can be excited. This ballistic thermomechanical effect can potentially open up new types of experiments in quantum fluids.

AB - Nanoscale mechanical resonators are widely utilized to provide high sensitivity force detectors. Here we demonstrate that such high-quality-factor resonators immersed in superfluid He-4 can be excited by a modulated flux of phonons. A nanosized heater immersed in superfluid He-4 acts as a source of ballistic phonons in the liquid-"phonon wind". When the modulation frequency of the phonon flux matches the resonance frequency of the mechanical resonator, the motion of the latter can be excited. This ballistic thermomechanical effect can potentially open up new types of experiments in quantum fluids.

KW - EXCITATIONS

U2 - 10.1103/PhysRevB.101.060503

DO - 10.1103/PhysRevB.101.060503

M3 - Journal article

VL - 101

JO - Physical review B

JF - Physical review B

SN - 2469-9950

IS - 6

M1 - 060503

ER -

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