Introduction to Quasicrystals

Paper Summary:

This paper discusses crystallography, which is the scientific study of crystals. The paper specifically introduces quasicrystals and discusses their discovery in 1982. The paper goes on to analyze the properties, symmetry and application of quasicrystals, looking closely at how they differ from classical crystals. The paper includes many diagrams to illustrate its points.

Table of Contents:
Classical Crystals and Quasicrystals: An Overview
Quasicrystals in Focus
Symmetry of Quasicrystals and the Concept of Higher Dimensional Space
Types of Quasicrystals
Structure Models, Structure Solution Techniques, and Software Modeling
Properties of Quasicrystals
Applications of Quasicrystals and Research Areas in Quasicrystallography

From the Paper:

Crystallography, the scientific study of crystals, can be traced as far back as the 17th century, when scientists such as Johannes Kepler and "Robert Hooke published works presenting ideas on the microscopic structure of crystals. Numerous studies in this field resulted in the systematized discipline of crystals as it is known today. Following these developments, "crystallography" evolved from "the scientific study of crystals" to "the experimental science of determining the arrangement of atoms in solids." This evolution to cover all possible atomic arrangement was inevitable especially with the discovery of solids that cannot be confined within the conventional definition of a crystal."

Sample of Sources Used:

• Collins, S. (2006). Bob - Penrose Tiling Generator and Explorer. Retrieved March 17, 2007 from http://www.stephencollins.net/web/penrose/
• Fujiwara, T. (1994). Physical Properties in Quasicrystals: Past, Present, and Future. Quasicrystals and Imperfectly Ordered Crystals, Materials Science Forum Vol. 150-151 (K. H. Kuo & S. Takuchi - Eds.), pp. 491-4.
• Gibson, K. (2002, November). The Quasicrystal Turns 20. Retrieved March 17, 2007 from http://www.ameslab.gov/news/Quasicrystal.pdf
• Grimm, U. (2005, September 14). Quasicrystals. Retrieved March 11, 2007, from http://mcs.open.ac.uk/ugg2/quasi.shtml
• Lifshitz, R. (2007, January 2). Quasicrystals. Retrieved March 17, 2007 from http://haides.caltech.edu/~lifshitz/quasicrystals.html

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