Acta Crystallographica Section A

Foundations of Crystallography

Volume 58, Part 4 (July 2002)


research papers



Acta Cryst. (2002). A58, 352-360    [ doi:10.1107/S0108767302005202 ]

A multigrid approach to the average lattices of quasicrystals

J. L. Aragón, G. G. Naumis and M. Torres

Abstract: An average structure associated with a given quasilattice is a system composed of several average lattices that in reciprocal space produces strong main reflections. The average lattice of a quasicrystal is a useful concept closely related to the geometric description of the quasicrystal to crystal transformation and has been proved to be structurally significant. Here we calculate average structures for arbitrary two- and three-dimensional quasilattices using the dual generalized method. Additionally, closed analytical expressions for the coordinates of the average structure, the quasiperiodic lattice and its diffraction pattern are given.

Keywords: quasicrystal; multigrid; average lattice.

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