Sound Velocity and Adiabatic Compressibility of Liquid Helium Three

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15 January 1959

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

Vol. 113 (2) , 417-422
https://doi.org/10.1103/PhysRev.113.417

Abstract

The velocity of first sound at 5 Mc/sec was measured in liquid

{He}^{3}

between 0.34 and 3.14°K. The results are fitted within 0.2% by the equation

u = 183.9 - 5.98 T^{2} - 0.130 T^{3} - 0.00176 T^{8}

(m/sec). Initial pressure coefficients of the sound velocities and a number of derived thermodynamic quantities are also reported.

Keywords

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