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Temperature Oscillations of an Adiabatic Superleak

Authors
  • Gasparini, Francis M.1
  • Mehta, Sarabjit1
  • 1 State University of New York at Buffalo, Department of Physics, Buffalo, N.Y, 14260-1500, USA , Buffalo
Type
Published Article
Journal
Journal of Low Temperature Physics
Publisher
Kluwer Academic Publishers-Plenum Publishers
Publication Date
Jan 01, 1998
Volume
110
Issue
1-2
Pages
293–298
Identifiers
DOI: 10.1023/A:1022528631749
Source
Springer Nature
Keywords
License
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Abstract

We describe a new resonance of superfluid4He 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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