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Temperature-, concentration- and pressure-dependence of the viscosity of liquid3He-4He mixtures at low temperatures

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Abstract

We have investigated the viscosity of liquid3He-4He mixtures at various3He - concentrations (0.98%≤x≤9.5%) in the temperature range1 mK ≤ T ≤100 mK and at pressures 0 bar ≤ P ≤20 bar. At T≤10 mK the Fermi-liquid behaviour ηT2 = const. as well as η ∝ x4/3 could be confirmed. However, there are significant deviations from theoretical predictions for the magnitude of the viscosity as well as for its pressure dependence.

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Authors and Affiliations

  1. Phys. Inst., Univ. Bayreuth, 8580, Bayreuth, FRG

    R. König, P. Smeibidl & F. Pobell

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  1. R. König
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  2. P. Smeibidl
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  3. F. Pobell
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König, R., Smeibidl, P. & Pobell, F. Temperature-, concentration- and pressure-dependence of the viscosity of liquid3He-4He mixtures at low temperatures. J Low Temp Phys 89, 469–472 (1992). https://doi.org/10.1007/BF00694065

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  • DOI: https://doi.org/10.1007/BF00694065

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