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Phonon Propagation in Liquid and Solid Helium

  • V. Narayanamurti
  • R. C. Dynes

Abstract

A brief review is given of recent work on the measurement of anomalous dispersion in the excitation spectrum of Helium II, using superconducting fluorescers and tunnel junctions as sources and detectors of high frequency phonons. In addition, a short discussion of recent observations of ballistic phonons in solid 3He is given. Implications for specific heat measurements are discussed.

Keywords

Tunnel Junction Anomalous Dispersion Solid Helium Specific Heat Measurement Phonon Propagation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • V. Narayanamurti
    • 1
  • R. C. Dynes
    • 1
  1. 1.Bell LaboratoriesMurray HillUSA

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