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:

Sound Propagation in SuperfluidHe3near the Polycritical Point
Physical Review Letters, 1975
Propagation of Zero Sound in an Anisotropic Superfluid State of 3He
Progress of Theoretical Physics, 1974
Anisotropic Ultrasound Propagation in a Smectic-ALiquid Crystal
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 ${He}^{3}$
Physical Review Letters, 1972
Techniques for measuring sound propagation in liquid 4He and 3He-4He solutions
Cryogenics, 1969
Superconductivity with Pairs in a Relative $p$ Wave
Physical Review B, 1963

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