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Resolution of a doublet splitting of the squashing mode in superfluid sup 3 He- B

Journal Article · · Physical Review Letters; (USA)
; ; ;  [1];  [2]
  1. Department of Physics and Astronomy, Northwestern University, Evanston, IL (USA)
  2. Physics Department, University of Wisconsin at Milwaukee, Milwaukee, WI (USA)
The single-ended, cw impedance technique has been employed to study the squashing mode of superfluid {sup 3}He-{ital B} in a sound cell with a path length of 381 {mu}m with ultrasound frequencies of 115.8 and 141.6 MHz. A doublet splitting of the squashing mode has been observed and the width of the splitting is dependent on the thermal gradient within the acoustic cell, which strongly suggests that the observed phenomena are induced by superflow.
OSTI ID:
6255872
Journal Information:
Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 65:21; ISSN PRLTA; ISSN 0031-9007
Country of Publication:
United States
Language:
English