Transverse Zero Sound in Normal 3He

  • Pat R. Roach
  • J. B. Ketterson


We have measured the complex acoustic shear impedance of liquid 3He by observing the decay of a transiently excited AC cut quartz transducer. Comparison with recent theories suggests that our results at low temperatures can only be due to the excitation of transverse zero sound. We have also observed the direct transmission of transverse excitations between two closely spaced transducers in the vicinity of 3 mK. These results are analyzed in terms of the propagation of transverse zero sound although theory suggests that a single-particle contribution must also be present.


Acoustic Impedance Transverse Mode Sound Mode Receiver Input Zero Sound 


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Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • Pat R. Roach
    • 1
  • J. B. Ketterson
    • 1
    • 2
  1. 1.Argonne National LaboratoryArgonneUSA
  2. 2.Northwestern UniversityEvanstonUSA

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