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Research Activities > Programs > Nonequilibrium Interface and Surface Dynamics 2007

Dewetting of a Solid Monolayer

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Dewetting of a Solid Monolayer

Professor Olivier Pierre-Louis

Université J. Fourier Grenoble, France

Abstract:   The stability of thin solid layers at the surface is a major technological issue for the production of reliable nanoscale devices. We study the stability of the thinest possible layer: a single monolayer. We show that, for a wide range of temperatures and microscopic parameters, the dewetting of a monolayer occurs via the formation of bi-layer islands. We identify two regimes: (i) a low temperature regime, with step detachment limited kinetics and irreversible nucleation; (ii) a high temperature regime with diffusion-limited kinetics and thermodynamic nucleation. Generic scaling laws for the dewetting process are derived from rate equations.

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