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R. W. Giannetta; A. Ahonen; E. Polturak; J. Saunders; E. K. Zeise; R. C. Richardson; D. M. Lee

doi:10.1103/PhysRevLett.45.262

Observation of a New Sound-Attenuation Peak in Superfluid ${}^{3}{He}$ - $B$

R. W. Giannetta, A. Ahonen, E. Polturak, J. Saunders, E. K. Zeise, R. C. Richardson, and D. M. Lee

Phys. Rev. Lett. 45, 262 – Published 28 July 1980

Abstract

Results of zero-sound attenuation measurements in ${}^{3}{He}$ - $B$ , at frequencies up to 60 MHz and pressures between 0 and 20 bars, are reported. At frequencies of 30 MHz and above, a new attenuation feature is observed which bears the signature of a collective mode of the superfluid.

Received 25 March 1980

DOI:https://doi.org/10.1103/PhysRevLett.45.262

Authors & Affiliations

R. W. Giannetta^*, A. Ahonen^†, E. Polturak, J. Saunders, E. K. Zeise, R. C. Richardson, and D. M. Lee

Laboratory of Atomic and Solid State Physics and Materials Science Center, Cornell University, Ithaca, New York 14853

^*Present address: Bell Laboratories, 600 Mountain Ave., Murray Hill, N. J. 07974.
^†Present address: Low Temperature Laboratory, Helsinki University of Technology, Espoo 15, Finland.