Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2001-05-28
Physics
Condensed Matter
Statistical Mechanics
RevTeX manuscript (3 pages output), 3 figures
Scientific paper
10.1103/PhysRevLett.87.196105
It is shown that experimentally obtained isotherms of adsorption on solid substrates may be completely reconciled with Lifshitz theory when thermal fluctuations are taken into account. This is achieved within the framework of a solid-on-solid model which is solved numerically. Analysis of the fluctuation contributions observed for hydrogen adsorption onto gold substrates allows to determine the surface tension of the free hydrogen film as a function of film thickness. It is found to decrease sharply for film thicknesses below seven atomic layers.
Herminghaus Stephan
Mecke Klaus
Vorberg Jens
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