TEMPERATURE-DEPENDENCE OF 3RD-SOUND IN HELIUM MONOLAYERS

Authors
CLEMENTS BE KROTSCHECK E LAUTER HJ SAARELA M
Citation
Be. Clements et al., TEMPERATURE-DEPENDENCE OF 3RD-SOUND IN HELIUM MONOLAYERS, Physica. B, Condensed matter, 194, 1994, pp. 657-658
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
657 - 658
Database
ISI
SICI code
0921-4526(1994)194:<657:TO3IHM>2.0.ZU;2-U
Abstract
The temperature dependence of third sound is determined from a variati onal-density-matrix approach. At zero temperature a liquid He-4 monola yer, adsorbed to a weakly attractive substrate, supports third sound o nly within a restricted range of coverages. Elevating the temperature appreciably decreases the value of the minimum stable coverage, increa ses the maximum sound velocity, and slightly decreases the maximum sta ble coverage.