The thermal conductivity of superfluid He-3 in aerogel: a measurement of the energy gap.

Physics

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https://doi.org/10.1023/A:1013752109242
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Keywords

helium-3, superfluid, aerogel, thermal conductivity

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The thermal conductivity of superfluid He-3 in aerogel: a measurement of the energy gap. / Fisher, Shaun N.; Guénault, A.M.; Hale, A. J. et al.
In: Journal of Low Temperature Physics, Vol. 126, No. 1-2, 01.2002, p. 673-678.

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

Author

Fisher, Shaun N. ; Guénault, A.M. ; Hale, A. J. et al. / The thermal conductivity of superfluid He-3 in aerogel: a measurement of the energy gap. In: Journal of Low Temperature Physics. 2002 ; Vol. 126, No. 1-2. pp. 673-678.

Bibtex

@article{0c7c9e7a2e0345f4909854957365529b,

title = "The thermal conductivity of superfluid He-3 in aerogel: a measurement of the energy gap.",

abstract = "Transport properties of superfluid He-3 in aerogel are governed by a fixed paean free path set by the typical dimensions of the strand separation. We describe preliminary measurements of the thermal conductivity of superfluid He-3 confined in 98% silica aerogel. The majority of the measurements are made in relatively high magnetic fields where the superfluid within the aerogel is in the A-phase like state. Since the quasiparticle mean free path is fixed, the temperature dependence of the thermal conductivity depends only on the superfluid energy gap and on the texture in the case of the A-phase. The results so far obtained are broadly consistent with the aerogel-confined superfluid having a temperature dependent energy gap close to the BCS prediction although there are significant deviations at the lowest temperatures.",

keywords = "helium-3, superfluid, aerogel, thermal conductivity",

author = "Fisher, {Shaun N.} and A.M. Gu{\'e}nault and Hale, {A. J.} and Pickett, {George R.}",

year = "2002",

month = jan,

doi = "10.1023/A:1013752109242",

language = "English",

volume = "126",

pages = "673--678",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "SPRINGER/PLENUM PUBLISHERS",

number = "1-2",

}

RIS

TY - JOUR

T1 - The thermal conductivity of superfluid He-3 in aerogel: a measurement of the energy gap.

AU - Fisher, Shaun N.

AU - Guénault, A.M.

AU - Hale, A. J.

AU - Pickett, George R.

PY - 2002/1

Y1 - 2002/1

N2 - Transport properties of superfluid He-3 in aerogel are governed by a fixed paean free path set by the typical dimensions of the strand separation. We describe preliminary measurements of the thermal conductivity of superfluid He-3 confined in 98% silica aerogel. The majority of the measurements are made in relatively high magnetic fields where the superfluid within the aerogel is in the A-phase like state. Since the quasiparticle mean free path is fixed, the temperature dependence of the thermal conductivity depends only on the superfluid energy gap and on the texture in the case of the A-phase. The results so far obtained are broadly consistent with the aerogel-confined superfluid having a temperature dependent energy gap close to the BCS prediction although there are significant deviations at the lowest temperatures.

AB - Transport properties of superfluid He-3 in aerogel are governed by a fixed paean free path set by the typical dimensions of the strand separation. We describe preliminary measurements of the thermal conductivity of superfluid He-3 confined in 98% silica aerogel. The majority of the measurements are made in relatively high magnetic fields where the superfluid within the aerogel is in the A-phase like state. Since the quasiparticle mean free path is fixed, the temperature dependence of the thermal conductivity depends only on the superfluid energy gap and on the texture in the case of the A-phase. The results so far obtained are broadly consistent with the aerogel-confined superfluid having a temperature dependent energy gap close to the BCS prediction although there are significant deviations at the lowest temperatures.

KW - helium-3

KW - superfluid

KW - aerogel

KW - thermal conductivity

U2 - 10.1023/A:1013752109242

DO - 10.1023/A:1013752109242

M3 - Journal article

VL - 126

SP - 673

EP - 678

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 1-2

ER -

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