Mechanical response properties of He bilayer films on an oscillating hectorite

Authors
Hieda, M Nishino, T Suzuki, M Wada, N Torii, K
Citation
M. Hieda et al., Mechanical response properties of He bilayer films on an oscillating hectorite, J L TEMP PH, 121(5-6), 2000, pp. 507-512
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LOW TEMPERATURE PHYSICS
ISSN journal
00222291 → ACNP
Volume
121
Issue
5-6
Year of publication
2000
Pages
507 - 512
Database
ISI
SICI code
0022-2291(200012)121:5-6<507:MRPOHB>2.0.ZU;2-9
Abstract
We measured the mechanical response of He-3 and He-4 bilayer films on a 2D mesoporous Hectorite from 0.1 K to 4 K using 10MHz ultrasound. Below a cert ain coverage, we observed the slippage of nonsuperfluid films at low temper atures. This behavior was well described by a film-substrate fractional for ce with a thermally activated process. Furthermore we found that this slipp age is inhibited by the appearance of the fluid slate on the "inert" layer.