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Zero sound spectroscopy of3He-B below 250 μK

  • Liquid Helium
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Czechoslovak Journal of Physics Aims and scope

Abstract

Using non-resonant, broadband transducers fabricated from PVDF films, frequency sweeps have been performed in3He-B from nominally 10 to 60 MHz at nearly constant temperatures below 250 μK at about 1 bar. By studying the changes in the group velocity and attenuation as a function of frequency, the real squashing (J=2+) mode has been identified in theT→0 limit.

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Authors and Affiliations

  1. Department of Physics and the Center for Ultralow Temperature Research, University of Florida, 32611-8440, Gainesville, FL, USA

    G. E. Granroth, E. B. Genio, J. B. Walden, J. -W. Xu, G. G. Ihas & M. W. Meisel

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  1. G. E. Granroth
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  2. E. B. Genio
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  3. J. B. Walden
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  4. J. -W. Xu
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  5. G. G. Ihas
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  6. M. W. Meisel
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Granroth, G.E., Genio, E.B., Walden, J.B. et al. Zero sound spectroscopy of3He-B below 250 μK. Czech J Phys 46 (Suppl 1), 61–62 (1996). https://doi.org/10.1007/BF02569446

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  • DOI: https://doi.org/10.1007/BF02569446

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