Capillary levelling of free-standing liquid nanofilms

We report on the capillary-driven levelling of a topographical perturbation at the surface of a free-standing liquid nanofilm. The width of a stepped surface profile is found to evolve as the square root of time. The hydrodynamic model is in excellent agreement with the experimental data. In additio...

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Bibliographic Details
Published in:arXiv.org 2016-09
Main Authors: Ilton, Mark, Couchman, Miles M P, Gerbelot, Cedric, Benzaquen, Michael, Fowler, Paul D, Stone, Howard A, Elie Raphaël, Dalnoki-Veress, Kari, Salez, Thomas
Format: Article
Language:English
Subjects:
Leveling
Rheological properties
Rheology
Substrates
Online Access:Get full text
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Summary:We report on the capillary-driven levelling of a topographical perturbation at the surface of a free-standing liquid nanofilm. The width of a stepped surface profile is found to evolve as the square root of time. The hydrodynamic model is in excellent agreement with the experimental data. In addition to exhibiting an analogy with diffusive processes, this novel system serves as a precise nanoprobe for the rheology of liquids at interfaces in a configuration that avoids substrate effects.
ISSN:2331-8422
DOI:10.48550/arxiv.1602.05538