Zero sound spectroscopy of 3He-B below 250 μK

G. E. Granroth, E. B. Genio, J. B. Walden, J. W. Xu, G. G. Ihas, M. W. Meisel

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Using non-resonant, broadband transducers fabricated from PVDF films, frequency sweeps have been performed in 3He-B from nominally 10 to 60 MHz at nearly constant temperatures below 250 μK at about 1 bar. By studying the changes in the group velocity and attenuation as a function of frequency, the real squashing (J = 2+) mode has been identified in the T → 0 limit.

Original languageEnglish
Pages (from-to)61-62
Number of pages2
JournalCzechoslovak Journal of Physics
Volume46
Issue numberSUPPL. 1
DOIs
StatePublished - 1996
Externally publishedYes

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