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Regensburg 2007 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 24: Nano structured materials II

MM 24.3: Talk

Wednesday, March 28, 2007, 17:15–17:30, H4

A general approach to control the radius and the chirality of nanotubes — •Jens Kunstmann1, Alexander Quandt2, and Ihsan Boustani31Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569 Stuttgart — 2Institut für Physik der Ernst-Moritz-Arndt-Universität Greifswald, Domstraße 10a, 17489 Greifswald — 3Bergische Universität Wuppertal, FB C Mathematik und Naturwissenschaften, Gaußstraße 20, 42097 Wuppertal

The success of future nanotechnologies will strongly depend on our ability to control the structure of materials on the atomic scale. For nanotubes it turns out that one of their structural parameters - the chirality - may not be controlled during synthesis. We explain the basic reason for this defect and show that novel classes of nanotubes like boron nanotubes, related to sheets with anisotropic in-plane mechanical properties, may overcome these problems. Our results further suggest that extended searches for nanomaterials similar to pure boron will allow for one of the simplest and most direct ways to achieve structure control within nanotechnology.

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