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Smectic filaments in colloidal suspensions of rods
Daan Frenkel1, Tanja Schilling
1FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|November 22, 2002
Summary
Smectic filaments form in hard rod mixtures via a process analogous to polymer crystallization. Filament thickness balances smectic phase formation with nucleation barriers, as confirmed by simulations.
Area of Science:
- Soft Matter Physics
- Materials Science
Background:
- Recent observations show smectic filaments in supersaturated isotropic mixtures of hard rods.
- Understanding the formation and growth mechanisms of these structures is crucial.
Purpose of the Study:
- To propose a model for the formation and growth of smectic filaments in hard rod mixtures.
- To investigate the factors determining filament thickness.
Main Methods:
- Development of a model inspired by the Hoffman-Lauritzen model for polymer crystallization.
- Analytical calculations to determine filament thickness.
- Comparison with kinetic Monte Carlo simulations.
Main Results:
- Filament thickness is governed by a balance between maximizing smectic phase formation and minimizing the nucleation barrier.
- The proposed model provides a framework for understanding filament growth dynamics.
Conclusions:
- The study presents a theoretical model for smectic filament formation in hard rod systems.
- The model successfully explains filament thickness determination and is validated by simulations.