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 |
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| Pages (from-to) | 21-22 |
| Number of pages | 2 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 26 |
| Issue number | S3-1 |
| DOIs | |
| Publication status | Published - Aug 1987 |