Until the 1970s all materials studied consisted of periodic arrays of unit cells, or were amorphous. A new class of solid state matter called aperiodic crystals has since been uncovered. It is a long range ordered structure, but without lattice periodicity. It is found in a wide range of materials: organic and anorganic compounds, minerals (including a substantial portion of the earths crust), and metallic alloys, under various pressures and temperatures. Because of the lack of periodicity, the usual techniques for the study of structure and physical properties no longer work, and new techniques have to be developed.
This book deals with the characterisation of the structure, the structure determination and the study of the physical properties, especially dynamical and electronic properties of aperiodic crystals. The treatment is based on a description in a space with more dimensions than three, the so-called superspace. This allows us to generalise the standard crystallography and to look differently at the dynamics. The three main classes of aperiodic crystals, modulated phases, incommensurate composites and quasicrystals are treated from a unified point of view, which stresses similarities of the various systems. The book assumes as a prerequisite a knowledge of the fundamental techniques of crystallography and the theory of condensed matter, and covers the literature at the forefront of the field.
Since the first edition of this book in 2007, the field of aperiodic crystals has developed considerably, with the discovery of new materials and new structures. Progress has been made in structure determination, in the interpretation and understanding of the structural characteristics and in the calculation of electrons and phonons. This new edition reflects these new developments, and it includes discussions of natural quasicrystals, incommensurate magnetic and multiferroic structures, photonic and mesoscopic quasicrystals. The second edition also includes a number of new exercises that give the reader an opportunityt to check their understanding of the material.
Review from previous edition ... very timely ... including the big picture and how to explain it. * Marjorie Senechal, Smith College Northampton, Massachusetts *
... a valuable aid for newcomers to the field of aperiodic crystals as well as in teaching solid state physics and chemistry and crystallography. * Walter Steurer, ETH Zurich *
2: Description and Symmetry of Aperiodic Crystals
3: Tilings: Mathematical Models for Quasicrystals
5: Physical Properties
6: Origin and Stability
7: Other Topics
A: Space Groups in Arbitrary Dimensions
B: Exercises: Solutions
Series: International Union of Crystallography Monographs on Crystallography
Number Of Pages: 560
Published: 7th June 2018
Country of Publication: GB
Dimensions (cm): 23.0 x 15.9
Weight (kg): 0.94
Edition Number: 2
Edition Type: Revised