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Metastability and hysteresis of the vortex states in rotating superfluid3He-B

  • Liquid Helium
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Czechoslovak Journal of Physics Aims and scope

Abstract

We have investigated the vortex core transition in3He-B by measuring the associated changes in mutual fricition dissipation within the superfluid. If rotation is continuously stopped and restarted while cooling or warming then the transition occurs at a clearly defined temperature, but temperature sweeps during continuous rotation show substantial supercooling and superheating. Moreover, the high temperature vortex shows a continuum of metastable states when supercooled to a constant, arbitrary low temperature, the mutual friction dissipaton depending on the temperature at which rotation was started. Our current interpretation is that the high temperature vortex state is a temperature-dependent mixture of two vortex types.

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References

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Authors and Affiliations

  1. Schuster Laboratory, University of Manchester, M13 9PL, Manchester, UK

    J B Cook, J R Hook, H Alles & H E Hall

  2. Department of Physics, University of Jyväskylä, P.O. Box 35, 40351, Jyväskylä, Finland

    A J Manninen

Authors
  1. J B Cook
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  2. A J Manninen
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  3. J R Hook
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  4. H Alles
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  5. H E Hall
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Additional information

Research supported by EPSRC through Research Grants GR/H95839 and GR/K59835

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Cook, J.B., Manninen, A.J., Hook, J.R. et al. Metastability and hysteresis of the vortex states in rotating superfluid3He-B. Czech J Phys 46 (Suppl 1), 3–4 (1996). https://doi.org/10.1007/BF02569417

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  • DOI: https://doi.org/10.1007/BF02569417

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