Sound propagation in helium-II in grafoil

E. Y. Andrei, W. I. Glaberson

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Fourth-sound-like propagation in superfluid He4 in a grafoil-filled resonator has been observed. The sound velocity was found to be more than an order of magnitude smaller than that of ordinary fourth sound. This significant reduction can be explained by picturing the pore structure in grafoil as an ensemble of coupled Helmholtz resonators.

Original languageEnglish (US)
Pages (from-to)4447-4449
Number of pages3
JournalPhysical Review B
Issue number11
StatePublished - 1979

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


Dive into the research topics of 'Sound propagation in helium-II in grafoil'. Together they form a unique fingerprint.

Cite this