Effects of Second Sound on Acoustic Trasmission at the Solid-Liquid ⁴He Interface

Author Info

Matthew J. Moelter, Brown UniversityFollow
M. B. Manning, Brown University
C. Elbaum, Brown University

Recommended Citation

Published in Physical Review B, Volume 34, Issue 7, October 1, 1986, pages 4924-4927.

NOTE: At the time of publication, the author Matthew Moelter was not yet affiliated with Cal Poly.

The definitive version is available at https://doi.org/10.1103/PhysRevB.34.4924.

Abstract

We have calculated the reflection and transmission coefficients of acoustic waves propagating across a solid-liquid interface of ⁴He, using an extension of the treatment of Castaing and Nozières in which we include pressure changes associated with second sound. These calculations account well for the experimental results obtained over the temperature range 0.83 K≤ T ≤1.46 K and provide an alternative explanation to the one we offered previously for the lack of agreement between experiment and the theory of Castaing and Nozières.

Disciplines

Physics

Copyright

1986 American Physical Society.

Publisher statement

This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society. The following article appeared in Physical Review B.