Stabilizing quasicrystals composed of patchy colloids by narrowing the patch width

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Details zur Publikation

Autorinnen und Autoren: Gemeinhardt A, Martinsons M, Schmiedeberg M
Zeitschrift: EPL - Europhysics Letters
Jahr der Veröffentlichung: 2019
Band: 126
ISSN: 0295-5075
Sprache: Englisch


We explore the behavior of two-dimensional patchy colloidal particles with 8 or 10 symmetrically arranged patches by employing Monte Carlo simulations. The particles interact according to an isotropic pair potential that possesses only one typical length. The patches lead to additional attractions that are anisotropic and depend on the relative orientation of two neighboring particles. We investigate the assembled structures with a special interest in quasicrystals. We found that the patch width is of great importance: Only in the case of narrow patch widths we are able to observe metastable octagonal and decagonal quasicrystals, while dodecagonal quasicrystals can also occur for broad patches. These results are important to understand the role of interactions with preferred binding angles in order to obtain quasicrystals. Our findings suggest that in the case of sharp binding angles, as they occur in metallic alloys, octagonal and decagonal symmetries might be observed more often than in systems with less sharp binding angles as it is the case in soft-matter systems where dodecagonal quasicrystals dominate.

FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Gemeinhardt, Anja
Lehrstuhl für Experimentalphysik (Astroteilchenphysik)
Martinsons, Miriam
Professur für Theoretische Physik
Schmiedeberg, Michael Prof. Dr.
Professur für Theoretische Physik


Gemeinhardt, A., Martinsons, M., & Schmiedeberg, M. (2019). Stabilizing quasicrystals composed of patchy colloids by narrowing the patch width. EPL - Europhysics Letters, 126.

Gemeinhardt, Anja, Miriam Martinsons, and Michael Schmiedeberg. "Stabilizing quasicrystals composed of patchy colloids by narrowing the patch width." EPL - Europhysics Letters 126 (2019).


Zuletzt aktualisiert 2019-04-06 um 14:50