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Letter
Nature Materials 3, 95–98 (1 February 2004) | doi:10.1038/nmat1050
Shape and stability of self-assembled surface domains
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Abstract
The shapes of two-dimensional (2D) nanostructures on surfaces are determined by their boundary energies as well as by long-range elastic, electrostatic or magnetic interactions. Although it is well known that long-range interactions can give rise to shape bifurcation—an abrupt change in shape symmetry at a critical size—a general description of the evolution of shape with size, systematically incorporating both the azimuthal dependence of the boundary energy and long-range interactions, has been lacking.
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