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New experimental results on the static and the transient anomalous Kapitza conductance of clean copper to 4He interfaces

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Experiments are described on the power dependence of the Kapitza conductance of copper at temperatures between 1 and 2 K. It is shown that the effects found earlier by Cheeke et al. are much enhanced on clean copper surfaces. New transient effects with long delay times up to 1000 sec are reported. It is confirmed that the origin of the anomalous Kapitza conductance is situated in the layer of superfluid helium next to the interface. A model for the steady state effect is proposed in terms of localized heat transfer.

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Authors and Affiliations

  1. School of Physical and Molecular Sciences, University College of North Wales, Bangor, Gwynedd, Great Britain

    K. C. Rawlings & J. C. A. van der Sluijs

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  1. K. C. Rawlings
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  2. J. C. A. van der Sluijs
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Supported by the Science Research Council.

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Rawlings, K.C., van der Sluijs, J.C.A. New experimental results on the static and the transient anomalous Kapitza conductance of clean copper to 4He interfaces. J Low Temp Phys 33, 313–329 (1978). https://doi.org/10.1007/BF00115002

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  • DOI: https://doi.org/10.1007/BF00115002

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