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Characterization and decoration of the two-dimensional Penrose lattice
, Debendranath Sahoo, G. Athithan
Published in
Volume: 34
Issue: 10
Pages: 6924 - 6932
The self-similarity property of the two-dimensional Penrose lattice is utilized to characterize it in terms of the distribution of different kinds of vertices, the Voronoi cells and their nearest neighborhoods. Striking similarities are observed between the layer structures of the crystalline $\delta$-Al11Mn4, Al6Mn, Al13Fe4, Pt5P2 and Ni3Si2 with a sublattice of the Penrose lattice. The latter can be described in terms of cells which need not have fivefold rotational symmetry. Following the atomic distributions in the crystalline Al6Mn and Al13Fe4, decorations of such lattices are suggested to model the T phase of Al-Mn and other related quasicrystals. We find two types of layers with fivefold rotational symmetry in the T phase. This is in agreement with the electron diffraction from such quasicrystals. {\textcopyright} 1986 The American Physical Society.
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