Instabilities and disorder of the domain patterns in the systems with competing interactions
arXiv:cond-mat/9612197 · doi:10.1103/PhysRevLett.78.3149
Abstract
The dynamics of the domains is studied in a two-dimensional model of the microphase separation of diblock copolymers in the vicinity of the transition. A criterion for the validity of the mean field theory is derived. It is shown that at certain temperatures the ordered hexagonal pattern becomes unstable with respect to the two types of instabilities: the radially-nonsymmetric distortions of the domains and the repumping of the order parameter between the neighbors. Both these instabilities may lead to the transformation of the regular hexagonal pattern into a disordered pattern.
ReVTeX, 4 pages, 3 figures (postscript); submitted to Phys. Rev. Lett
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Cited by in corpus (4)
- Theory of domain patterns in systems with long-range interactions of Coulomb type
- Defects and multistability in eutectic solidification patterns
- Droplet phases in non-local Ginzburg-Landau models with Coulomb repulsion in two dimensions
- Geometric strong segregation theory for compositionally asymmetric diblock copolymer melts