Second Sound Measurements in 3He–4He Mixtures

R. J. Church; J. R. Owers-Bradley; P. C. Main; G. McHale; R. M. Bowley

doi:10.7567/JJAPS.26S3.21

Second Sound Measurements in 3He–4He Mixtures

R. J. Church, J. R. Owers-Bradley, P. C. Main, G. McHale, R. M. Bowley

EE Faculty Management and Administration

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Abstract

We report measurements of the damping of second sound in a 0.1% 3He–4He mixture in the temperature range 100 mK to 1K and for frequencies from the fundamental cavity resonance of -700 Hz to 12 KHz. The measurements enable us to examine the phonon contribution to the damping over a much wider frequency range than hitherto. The data are compared to a theory based on ideas which are developed in detail elsewhere.

Original language	English
Pages (from-to)	21-22
Number of pages	2
Journal	Japanese Journal of Applied Physics
Volume	26
Issue number	S3-1
DOIs	https://doi.org/10.7567/JJAPS.26S3.21
Publication status	Published - Aug 1987

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Second Sound Measurements in 3He–4He Mixtures

Abstract

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