Anisotropy of the Propagation of Sound in the $A$ Phase of Superfluid ${}^{3}{He}$

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24 March 1975

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 34 (12) , 715-718
https://doi.org/10.1103/physrevlett.34.715

Abstract

We have studied the temperature dependence of the anisotropy of the attenuation and velocity shift of 20-MHz ultrasound propagating in the

A

phase of

{}^{3}{He}

at pressure of 26 bar and for magnetic fields less than 27 G. Measurements in the

B

phase at 21.0 bar show no anisotropy.

Keywords

This publication has 8 references indexed in Scilit:

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Physical Review Letters, 1975
Propagation of Zero Sound in an Anisotropic Superfluid State of 3He
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Physical Review Letters, 1973
Microscopic Theory of NMR in an Anisotropic Superfluid ( ${}^{3}{He} A$ )
Physical Review Letters, 1973
Anisotropic Superfluidity in ${}^{3}{He}$ : A Possible Interpretation of Its Stability as a Spin-Fluctuation Effect
Physical Review Letters, 1973
Evidence for a New Phase of Solid ${He}^{3}$
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