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      Pattern coarsening in a 2D hexagonal system

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          Mechanisms of ordering in striped patterns.

          We have studied the ordering dynamics of the striped patterns of a single layer of cylindrical block copolymer microdomains in a thin film. By tracking disclinations during annealing with time-lapse atomic force microscopy, we observe a dominant mechanism of disclination annihilation involving three or four disclinations (quadrupoles). Pairwise disclination annihilation events are suppressed as a result of the topological constraints in this system. The kinetic scaling laws with exponents observed here are consistent with topologically allowed annihilation events involving multiple disclinations. The results provide insight into two-dimensional pattern formation and may lead to the successful application of block copolymer lithography.
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            Fabrication of nanostructures with long-range order using block copolymer lithography

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              Dynamics of pattern coarsening in a two-dimensional smectic system

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                Author and article information

                Journal
                Europhysics Letters (EPL)
                Europhys. Lett.
                IOP Publishing
                0295-5075
                1286-4854
                September 01 2004
                September 02 2004
                : 67
                : 5
                : 800-806
                Article
                10.1209/epl/i2004-10126-5
                b4f03a00-77ef-431c-aafa-02743a0ec97e
                © 2004
                History

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