Volume 74, Number 5, June 2006
|Page(s)||799 - 805|
|Published online||28 April 2006|
Growth and morphology in Langmuir monolayers
Instituto de Física, UNAM - P. O. Box 20-364, D. F., 01000 Mexico
2 Facultad de Química, UNAM - Cd. Universitaria, D. F., 04510 Mexico
Accepted: 30 March 2006
We show that domain growth of condensed phases from a metastable phase in Langmuir monolayers presents several stages. At the very beginning, depending on the supersaturation level, structures evolve through a tip-splitting dynamics. If supersaturation levels are high, there is a morphological transition, domains grow with needle tips that show as growth proceeds, side branching. The way in which the instability starts at round domains when a small lateral pressure jump is applied to the monolayer is also shown. A model for a monolayer interacting with the subphase is presented. This model can be related to the theory of dynamic phase transitions, where morphological structures and morphological transitions are predicted.
PACS: 05.70.Np – Interface and surface thermodynamics / 47.20.Dr – Surface-tension-driven instability / 68.55.Ac – Nucleation and growth: microscopic aspects
© EDP Sciences, 2006
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