Archimedean-like tiling on decagonal quasicrystalline surfaces

Mikhael, Jules; Roth, Johannes; Helden, Laurent; Bechinger, Clemens

Archimedean-like tiling on decagonal quasicrystalline surfaces

Dateien

Mikhael_0-414563.pdfGröße: 340.81 KBDownloads: 565

Datum

2008

Autor:innen

Mikhael, Jules

Roth, Johannes

Helden, Laurent

Bechinger, Clemens

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Nature. 2008, 454(7203), pp. 501-504. ISSN 0028-0836. eISSN 1476-4687. Available under: doi: 10.1038/nature07074

Zusammenfassung

Monolayers on crystalline surfaces often form complex structures with physical and chemical properties that differ strongly from those of their bulk phases. Such hetero-epitactic overlayers are currently used in nanotechnology and understanding their growth mechanism is important for the development of new materials and devices. In comparison with crystals, quasicrystalline surfaces exhibit much larger structural and chemical complexity leading, for example, to unusual frictional, catalytical or optical properties. Deposition of thin films on such substrates can lead to structures that may have typical quasicrystalline properties. Recent experiments have indeed showed 5-fold symmetries in the diffraction pattern of metallic layers adsorbed on quasicrystals. Here we report a real-space investigation of the phase behaviour of a colloidal monolayer interacting with a quasicrystalline decagonal substrate created by interfering five laser beams. We find a pseudomorphic phase that shows both crystalline and quasicrystalline structural properties. It can be described by an archimedean-like tiling consisting of alternating rows of square and triangular tiles. The calculated diffraction pattern of this phase is in agreement with recent observations of copper adsorbed on icosahedral Al(70)Pd(21)Mn(9) surfaces. In addition to establishing a link between archimedean tilings and quasicrystals, our experiments allow us to investigate in real space how single-element monolayers can form commensurate structures on quasicrystalline surfaces.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

MIKHAEL, Jules, Johannes ROTH, Laurent HELDEN, Clemens BECHINGER, 2008. Archimedean-like tiling on decagonal quasicrystalline surfaces. In: Nature. 2008, 454(7203), pp. 501-504. ISSN 0028-0836. eISSN 1476-4687. Available under: doi: 10.1038/nature07074

BibTex

@article{Mikhael2008-07-24Archi-39512,
  year={2008},
  doi={10.1038/nature07074},
  title={Archimedean-like tiling on decagonal quasicrystalline surfaces},
  number={7203},
  volume={454},
  issn={0028-0836},
  journal={Nature},
  pages={501--504},
  author={Mikhael, Jules and Roth, Johannes and Helden, Laurent and Bechinger, Clemens}
}

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