MEASUREMENTS OF DISSIPATION OF AC PRESSURE-DRIVEN SUPERFLOW OF HE-4 IN AEROGEL

Authors
HANNON DB TYLER A
Citation
Db. Hannon et A. Tyler, MEASUREMENTS OF DISSIPATION OF AC PRESSURE-DRIVEN SUPERFLOW OF HE-4 IN AEROGEL, Physica. B, Condensed matter, 194, 1994, pp. 663-664
Citations number
4
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
194
Year of publication
1994
Part
1
Pages
663 - 664
Database
ISI
SICI code
0921-4526(1994)194:<663:MODOAP>2.0.ZU;2-8
Abstract
Using a two-channel Helmoholtz resonator we have measured the complex conductance associated with ac pressure-driven superflow of liquid He- 4 through aergoel glass close to the transition temperature. From this we have calculated a dissipation function which appears to follow a p ower law in the argument of the superfluid density divided by the flow velocity.