Spectrum and Intensity of Light Scattered from Sulfur Hexafluoride along the Critical Isochore

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27 December 1971

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

Vol. 27 (26) , 1780-1783
https://doi.org/10.1103/physrevlett.27.1780

Abstract

We have measured the thermal diffusivity (

D

), the isothermal compressibility (

κ_{T}

), and the pressure (

P

) along the critical isochore of sulfur hexafluoride over the temperature range

0.048 {}^{\circ}K < (T - T_{c}) < 2.4 {}^{\circ}K

. We find that

κ_{T} = 1.26 \times 10^{- 9} {(\frac{T}{T_{c} - 1})}^{- 1.235 \pm 0.015}

{cm}^{2}

/dyne and that

{(\frac{\partial P}{\partial T})}_{V} = [7.91 + 0.18 (T - T_{c}) \pm 0.1] \times 10^{5}

{d y n e / c m}^{2}

deg. We discuss our measurements of

D

in terms of the Kadanoff-Swift-Kawasaki mode-mode coupling theory.

Keywords

This publication has 11 references indexed in Scilit:

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