Listing 1 - 6 of 6 |
Sort by
|
Choose an application
Until the 1970s all materials studied consisted of periodic arrays of unit cells, or were amorphous. In the following decades a new class of solid state matter, called aperiodic crystals, has been found. It is a long-range ordered structure, but without lattice periodicity. It is found in a wide range of materials: organic and inorganic compounds, minerals (including a substantial portion of the earth's 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 work deals with the characterization of the structure, the structure determination, and the study of the physical properties, especially the dynamical and electronic properties of aperiodic crystals.
Choose an application
Crystallography, Mathematical --- Quasicrystals --- Aperiodicity --- Sequences (Mathematics) --- Tiling (Mathematics) --- Congresses. --- Crystallography, Mathematical - Congresses. --- Quasicrystals - Congresses. --- Aperiodicity - Congresses. --- Sequences (Mathematics) - Congresses. --- Tiling (Mathematics) - Congresses.
Choose an application
Quasicrystals are non-periodic solids that were discovered in 1982 by Dan Shechtman, Nobel Prize Laureate in Chemistry 2011. The underlying mathematics, known as the theory of aperiodic order, is the subject of this comprehensive multi-volume series. This first volume provides a graduate-level introduction to the many facets of this relatively new area of mathematics. Special attention is given to methods from algebra, discrete geometry and harmonic analysis, while the main focus is on topics motivated by physics and crystallography. In particular, the authors provide a systematic exposition of the mathematical theory of kinematic diffraction. Numerous illustrations and worked-out examples help the reader to bridge the gap between theory and application. The authors also point to more advanced topics to show how the theory interacts with other areas of pure and applied mathematics.
Aperiodicity --- Crystallography, Mathematical --- Aperiodic tilings --- Quasicrystals --- Pavage (mathématiques) --- Quasicristaux --- Mathematics --- Mathématiques --- Mathématiques. --- Aperiodic tilings. --- Quasi-crystals --- Condensed matter --- Crystals --- Aperiodic point sets --- Sets, Aperiodic point --- Discrete geometry --- Point set theory --- Tiling (Mathematics) --- Mathematics.
Choose an application
Aperiodic Crystals collects 37 selected papers from the scientific contributions presented at Aperiodic 2012 - the Seventh International Conference on Aperiodic Crystals held in Cairns, Australia, 2-7 of September 2012. The volume discusses state-of-the-art discoveries, new trends and applications of aperiodic crystals - including incommensurately modulated crystals, composite crystals, and quasicrystals - from a wide range of different perspectives. Starting with a general historical introduction to aperiodic crystals, the book proceeds to examine the complex mathematics of aperiodic long-range order, as well as the theoretical approaches aimed at understanding some of the unique properties and mechanisms underlying the existence of aperiodic crystals. The book then explores in detail such topics as complex metallic alloys, modulated structures, quasicrystals and their approximants, dynamics, disorder and defects in quasicrystals. It concludes with an analysis of quasicrystal surfaces and their properties. By describing the latest research and the progress made on the structure determination of aperiodic crystals and the influence of this unique structure on their physical properties, this book represents a valuable resource to mathematicians, crystallographers, physicists, chemists, materials and surface scientists, and even architects and artists, interested in the fascinating nature of aperiodic crystals.
Aperiodicity -- Congresses. --- Crystallography -- Congresses. --- Quasicrystals -- Congresses. --- Crystals. --- Quasicrystals. --- Quasi-crystals --- Materials science. --- Spectroscopy. --- Crystallography. --- Structural materials. --- Materials Science. --- Structural Materials. --- Spectroscopy/Spectrometry. --- Condensed matter --- Crystals --- Crystallography --- Powders --- Solids --- Materials. --- Crystallography and Scattering Methods. --- Analysis, Spectrum --- Spectra --- Spectrochemical analysis --- Spectrochemistry --- Spectroscopy --- Chemistry, Analytic --- Interferometry --- Optics --- Radiation --- Wave-motion, Theory of --- Absorption spectra --- Light --- Spectroscope --- Leptology --- Physical sciences --- Mineralogy --- Engineering --- Engineering materials --- Industrial materials --- Engineering design --- Manufacturing processes --- Qualitative --- Materials --- Spectrometry --- Architectural materials --- Architecture --- Building --- Building supplies --- Buildings --- Construction materials --- Structural materials --- Analytical chemistry --- Quasicrystals --- Aperiodicity
Choose an application
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.
Molecular crystals --- Layer structure (Solids) --- Solid state physics. --- Crystallography. --- Aperiodicity. --- Structure cristalline (solides) --- Physique de l'état solide. --- Cristallographie. --- Cristaux moléculaires --- Chaos (théorie des systèmes) --- Structure. --- Structure --- Molecular crystals - Structure --- Physique de l'état solide. --- Cristaux moléculaires --- Chaos (théorie des systèmes)
Choose an application
What is order that is not based on simple repetition, that is, periodicity? How must atoms be arranged in a material so that it diffracts like a quasicrystal? How can we describe aperiodically ordered systems mathematically? Originally triggered by the – later Nobel prize-winning – discovery of quasicrystals, the investigation of aperiodic order has since become a well-established and rapidly evolving field of mathematical research with close ties to a surprising variety of branches of mathematics and physics. This book offers an overview of the state of the art in the field of aperiodic order, presented in carefully selected authoritative surveys. It is intended for non-experts with a general background in mathematics, theoretical physics or computer science, and offers a highly accessible source of first-hand information for all those interested in this rich and exciting field. Topics covered include the mathematical theory of diffraction, the dynamical systems of tilings or Delone sets, their cohomology and non-commutative geometry, the Pisot substitution conjecture, aperiodic Schrödinger operators, and connections to arithmetic number theory.
Mathematics. --- Convex and Discrete Geometry. --- Dynamical Systems and Ergodic Theory. --- Operator Theory. --- Number Theory. --- Global Analysis and Analysis on Manifolds. --- Differentiable dynamical systems. --- Global analysis. --- Operator theory. --- Discrete groups. --- Number theory. --- Mathématiques --- Dynamique différentiable --- Théorie des opérateurs --- Groupes discrets --- Théorie des nombres --- Mathematics --- Physical Sciences & Mathematics --- Geometry --- Aperiodic tilings. --- Aperiodicity. --- Aperiodic point sets --- Sets, Aperiodic point --- Dynamics. --- Ergodic theory. --- Global analysis (Mathematics). --- Manifolds (Mathematics). --- Convex geometry. --- Discrete geometry. --- Chaotic behavior in systems --- Discrete geometry --- Point set theory --- Tiling (Mathematics) --- Number study --- Numbers, Theory of --- Algebra --- Functional analysis --- Differential dynamical systems --- Dynamical systems, Differentiable --- Dynamics, Differentiable --- Differential equations --- Global analysis (Mathematics) --- Topological dynamics --- Groups, Discrete --- Infinite groups --- Discrete mathematics --- Convex geometry . --- Geometry, Differential --- Topology --- Analysis, Global (Mathematics) --- Differential topology --- Functions of complex variables --- Geometry, Algebraic --- Ergodic transformations --- Continuous groups --- Mathematical physics --- Measure theory --- Transformations (Mathematics) --- Dynamical systems --- Kinetics --- Mechanics, Analytic --- Force and energy --- Mechanics --- Physics --- Statics --- Combinatorial geometry
Listing 1 - 6 of 6 |
Sort by
|