The Osmotic Pressure of Very Dilute 3He-4He Mixtures

  • J. Landau
  • R. L. Rosenbaum


Detailed measurements of the osmotic pressure of dilute 3He-4He mixtures at very low temperatures have been reported recently by Landau et al.1,2 and Ghozlan et al.3 which give considerable information on the thermodynamic properties of this Fermi liquid for concentrations greater than 1.5 mole % 3He. The osmotic pressure and other thermodynamic properties of these mixtures have been thoroughly discussed in a review article by Ebner and Edwards.4 The need for measurement of the osmotic pressure at concentrations substantially less than 1.5% has been discussed in a recent theoretical paper by Disatnik and Brucker.5 It is in this very low concentration region that the effective interaction theory proposed by Bardeen, Baym, and Pines’ (BBP) should have its greatest validity. In this paper we present the experimental results from measurements of the osmotic pressure in the range of 3He mole fraction X from 0.08 to 0.6% at the saturated vapor pressure.


Osmotic Pressure Fermi Liquid Liquid Height Porous Vycor Glass Transport Property Measurement 
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Copyright information

© Springer Science+Business Media New York 1974

Authors and Affiliations

  • J. Landau
    • 1
  • R. L. Rosenbaum
    • 1
  1. 1.Department of PhysicsTechnion-Israel Institute of TechnologyHaifaIsrael

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