Regensburg 2013 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 33: Poster II

DY 33.14: Poster

Donnerstag, 14. März 2013, 17:00–19:00, Poster C

Colloidal Structures on Quasicrystalline Substrates — •Matthias Sandbrink and Michael Schmiedeberg — Institut für Theoretische Physik 2: Weiche Materie, Heinrich-Heine-Universität, Düsseldorf

Quasicrystals are structures with long-range order but no periodicity. Therefore, quasicrystals may possess rotational symmetries and other physical properties that cannot occur in conventional periodic crystals. We explore how three-dimensional quasicrystals consisting of monodisperse colloidal particles grow on a substrate. The geometry of the substrate is designed with quasicrystalline symmetry from aperiodic tilings, interference patterns, or Fourier expansions and may contain point defects. By using Monte-Carlo simulations, we study the colloidal structures on the quasicrystalline substrates and investigate the influence of defects on the growth process.