Penrose tilings, cluster models and the quasi-unit cell picture

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10 Scopus citations

Abstract

The quasi-unit cell picture proposes that quasicrystals can be decomposed into a single, repeating cluster of atoms with overlap (atom-sharing) rules between neighbors that force a perfect quasiperiodic structure. In this paper, we introduce the basic features of the model and how it differs from the earlier Penrose tiling and cluster models. We also report on recent advancements in applying the model to determine the structure of the decagonal phase, Al72Ni20Co8, including new evidence supporting the quasi-unit cell picture based on clusters with broken 10-fold symmetry in favor of models based on unbroken symmetry.

Original languageEnglish (US)
Pages (from-to)205-210
Number of pages6
JournalMaterials Science and Engineering A
Volume294-296
DOIs
StatePublished - Dec 15 2000

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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