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Home > News > Shaping colloidal assemblies

August 16th, 2004

Shaping colloidal assemblies

An MeV ion beam penetrating an amorphous material causes rapid heating of a cylindrically shaped region around the ion track, which leads to anisotropic deformation: the irradiated material shrinks in the direction of the ion beam and expands perpendicular to it. This provides a unique way to tailor the shape of colloidal materials. Two-dimensional colloidal crystals show complex deformation behavior, providing unique masks for nanolithography.


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