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Article
Direct Observation of Pulsed Third Sound Mass Displacement Waves in Unsaturated Superfluid 4He Films
Physical Review Letters (1978)
  • Robert Hallock, University of Massachusetts - Amherst
  • J. S Brooks
  • F. M Ellis
Abstract
We report direct observation of pulsed third-sound film thickness oscillations in unsaturated superfluid 4He films using a capacitance technique. Simultaneous measurements of accompanying temperature oscillations allow the first study of the relative amplitudes of these oscillations and the results are in reasonable agreement with the theory of Bergman although some discrepancies are noted.
Disciplines
Publication Date
1978
Publisher Statement
DOI:10.1103/PhysRevLett.40.240
Citation Information
Robert Hallock, J. S Brooks and F. M Ellis. "Direct Observation of Pulsed Third Sound Mass Displacement Waves in Unsaturated Superfluid 4He Films" Physical Review Letters Vol. 40 Iss. 4 (1978)
Available at: http://works.bepress.com/robert_hallock/39/