Observation of a New Sound-Attenuation Peak in Superfluid-
- 28 July 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 45 (4) , 262-265
- https://doi.org/10.1103/physrevlett.45.262
Abstract
Results of zero-sound attenuation measurements in -, at frequencies up to 60 MHz and pressures between 0 and 20 bars, are reported. At frequencies of 30 MHz and above, a new attenuation feature is observed which bears the signature of a collective mode of the superfluid.
Keywords
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