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Temperature Oscillations of an Adiabatic Superleak

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Abstract

We describe a new resonance of superfluid 4 He when confined in a superleak. In our experiment the superleak is sealed except at a filling hole which communicates with bulk liquid. The resonance is driven and detected thermally. The restoring force is provided by the compressibility of the helium under conditions which are very nearly adiabatic. We derive expressions for the resonance frequency, the lineshape and phaseshift and compare these with measurements on a 0.2113μm superleak.

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Authors and Affiliations

  1. Department of Physics, State University of New York at Buffalo, Buffalo, N.Y, 14260-1500, USA

    Francis M. Gasparini & Sarabjit Mehta

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  1. Francis M. Gasparini
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  2. Sarabjit Mehta
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Gasparini, F.M., Mehta, S. Temperature Oscillations of an Adiabatic Superleak. Journal of Low Temperature Physics 110, 293–298 (1998). https://doi.org/10.1023/A:1022528631749

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  • DOI: https://doi.org/10.1023/A:1022528631749

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