Volume 55, Number 5, September 2001
|Page(s)||698 - 704|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 December 2003|
Liquid flow in wetting layers on rough substrates
Department of Applied Physics,
University of Ulm - D-89069 Ulm, Germany
Accepted: 13 June 2001
We investigate experimentally the lateral flow in thin liquid adsorbate films on substrates with variable roughness. We find that, as a consequence of nanoscale roughness, the ability of the films to equilibrate lateral fluctuations depends remarkably weakly on film thickness. Our results suggest that it is a quite general feature of adsorbate films on "real" surfaces. This is of substantial importance for all systems in which transport in adsorbed layers plays a role.
PACS: 68.15.+e – Liquid thin films / 68.08.Bc – Wetting / 83.10.Bb – Kinematics of deformation and flow
© EDP Sciences, 2001
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