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Excess first sound attenuation in metastable superfluid3He−4He mixtures

  • Liquid Helium
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Czechoslovak Journal of Physics Aims and scope

Abstract

The first sound velocity and attenuation in metastable long-lived superfluid3He−4He mixtures are measured in a temperature range of 30 to 200 mK. The metastable state is reached by increasing continuously the3He concentration during the experiment due to change of the osmotic pressure. The concentration of the mixture is determined by simultaneous measuring the dielectric constant. The first sound is shown to undergo an excess attenuation in the metastable region while the sound velocity does not display any anomalous behaviour in this region. The results for stable mixtures are in good agreement with the kinetic theory but there is no quantitative explanation of the excess attenuation in the metastable solutions.

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References

  1. I. N. Adamenko et al. JLTP 96 (1994) 295

    Article  ADS  Google Scholar 

  2. G. Baym, C. Ebner. Phys. Rev. 164 (1967) 235

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. B. I. Verkin Institute for Low Temperature Physics and Engeenering, National Academy of Sciences of Ukraine, 47 Lenin ave., 310164, Kharkov, Ukraine

    Igor A. Usherov-Marshak, Valerii K. Chagovets, Grigorii A. Sheshin & Eduard Ya. Rudavskii

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  1. Igor A. Usherov-Marshak
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  2. Valerii K. Chagovets
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  3. Grigorii A. Sheshin
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  4. Eduard Ya. Rudavskii
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Additional information

This work was supported, in part, by ISSEP Grant GSU052390 and by INTAS program (Project 94-3416).

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Usherov-Marshak, I.A., Chagovets, V.K., Sheshin, G.A. et al. Excess first sound attenuation in metastable superfluid3He−4He mixtures. Czech J Phys 46 (Suppl 1), 97–98 (1996). https://doi.org/10.1007/BF02569464

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  • DOI: https://doi.org/10.1007/BF02569464

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