Research Activities >
Programs >
Nonequilibrium Interface and Surface Dynamics 2007
|
|
Dewetting of a Solid Monolayer
CSIC Building (#406),
Seminar Room 4122.
Directions: home.cscamm.umd.edu/directions
|
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. |
|
