Ultrasonic Attenuation in Liquid Helium at 1 GHz
- 7 April 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 22 (14) , 694-697
- https://doi.org/10.1103/physrevlett.22.694
Abstract
The attenuation of first sound in liquid helium was measured with an acoustical interferometer. Two results are of particular interest: the temperature dependence of the attenuation in the critical behavior region near the lambda point, and contrary to recent Brillouin scattering measurements, agreement with a theory of Khalatnikov and Chernikova in the region below about 2 K.This publication has 10 references indexed in Scilit:
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