Crystallography of Quasicrystals: Concepts, Methods and by Steurer Walter, Sofia Deloudi

By Steurer Walter, Sofia Deloudi

From tilings to quasicrystal constructions and from surfaces to the n-dimensional method, this publication provides a whole, self-contained in-depth description of the crystallography of quasicrystals. It goals not just at conveying the options and an actual photo of the constructions of quasicrystals, butit additionally permits the reader to go into the sphere of quasicrystal constitution research. Going past metal quasicrystals, it additionally describes the recent, dynamically transforming into box of photonic quasicrystals. The readership should be graduate scholars and researchers in crystallography, solid-state physics, fabrics technological know-how, strong- nation chemistry and utilized mathematics.

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Trans. Roy. Soc. (London) A 295, 553–618 (1980) 29. A. Pavlovitch, M. Kl´eman, Generalized 2D Penrose Tilings: Structural Properties. J. Phys. A: Math. Gen. 20, 687–702 (1987) 30. R. Penrose, The Rˆ ole of Aesthetics in Pure and Applied Mathematical Research. Bull. Inst. Math, Appl. 10, 266–271 (1974) 31. B. Pleasants, Designer quasicrystals: cut-and-project sets with pre-assigned properties. Amer. Math. , Providence (2000) 32. S. C. D. Mermin, The Two-Dimensional Quasicrystallographic Space-Groups with Rotational Symmetries Less Than 23-Fold.

The pentagons have three different decorations with Amman bars and inflation/deflation rules [27]. There exists a one-to-one relationship to the Penrose rhomb tiling (P3 tiling) [16]. Note that the pentagons show five different decorations with rhombs. If we connect the centers of the pentagons then we obtain the HBS tiling, which is dual to the P1 tiling. In the P1 tiling, all spiky tiles are fully surrounded by pentagon tiles. Consequently, the vertices of the H tile correspond to the centers of pentagons surrounding a rhomb tile.

Depending on the structure type, it may be useful to describe a structure as packing of atoms or larger structural units such as chains, columns, bands, layers, or polyhedra. We will focus in this chapter on polyhedra and their space-filling packings. This can be very useful for analyzing and understanding the geometry of quasiperiodic structures. One has to keep in mind, however, that these polyhedra may just be geometrical units and not necessarily crystalchemically well-defined entities (atomic clusters; for a detailed discussion see Sect.

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