Nonlinearity in the kapitza resistance between gold and superfluid 4he near tॕ

R. Duncan; G. Ahlers

doi:10.7567/JJAPS.26S3.363

Nonlinearity in the kapitza resistance between gold and superfluid 4he near tॕ

R. Duncan, G. Ahlers

Physics

Research output: Contribution to journal › Article › peer-review

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Abstract

We report experimental results for the thermal boundary resistance RK between gold and superfluid 4He which were obtained by using thermometry with three-nanokelvin resolution. The data imply that RK is singular at the superfluid transition temperature Tॕ. For t蠁1-T/Tॕ\lesssim10-4, RK becomes noticeably dependent on the heat flux Q used to make the measurement. The reduced temperature tc at which this nonlinear resistance is first observed is approximately proportional to Q. For t蠄tc dRK/dQ is approximately proportional to 1/t.

Original language	English
Pages (from-to)	363
Number of pages	1
Journal	Japanese Journal of Applied Physics
Volume	26
Issue number	S3-1
DOIs	https://doi.org/10.7567/JJAPS.26S3.363
State	Published - Jan 1987

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abstract = "We report experimental results for the thermal boundary resistance RK between gold and superfluid 4He which were obtained by using thermometry with three-nanokelvin resolution. The data imply that RK is singular at the superfluid transition temperature Tॕ. For t蠁1-T/Tॕ\lesssim10-4, RK becomes noticeably dependent on the heat flux Q used to make the measurement. The reduced temperature tc at which this nonlinear resistance is first observed is approximately proportional to Q. For t蠄tc dRK/dQ is approximately proportional to 1/t.",

author = "R. Duncan and G. Ahlers",

year = "1987",

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pages = "363",

journal = "Japanese Journal of Applied Physics",

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AU - Duncan, R.

AU - Ahlers, G.

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AB - We report experimental results for the thermal boundary resistance RK between gold and superfluid 4He which were obtained by using thermometry with three-nanokelvin resolution. The data imply that RK is singular at the superfluid transition temperature Tॕ. For t蠁1-T/Tॕ\lesssim10-4, RK becomes noticeably dependent on the heat flux Q used to make the measurement. The reduced temperature tc at which this nonlinear resistance is first observed is approximately proportional to Q. For t蠄tc dRK/dQ is approximately proportional to 1/t.

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SP - 363

JO - Japanese Journal of Applied Physics

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IS - S3-1

ER -

Nonlinearity in the kapitza resistance between gold and superfluid 4he near tॕ

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