Instabilities and Disorder of the Domain Patterns in Systems with Competing Interactions

C. B. Muratov

doi:10.1103/PhysRevLett.78.3149

Instabilities and Disorder of the Domain Patterns in Systems with Competing Interactions

C. B. Muratov

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The dynamics of 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.

Original language	English (US)
Pages (from-to)	3149-3152
Number of pages	4
Journal	Physical Review Letters
Volume	78
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.78.3149
State	Published - Apr 21 1997
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.78.3149

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abstract = "The dynamics of 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.",

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AB - The dynamics of 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.

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JO - Physical Review Letters

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Instabilities and Disorder of the Domain Patterns in Systems with Competing Interactions

Abstract

All Science Journal Classification (ASJC) codes

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