Atomic Structure and Stability of Quasicrystals
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The discovery of quasicrystals has been a revolution in crystallography, since we have realized that symmetries as the pentagon or icosahedron symmetries, forbidden in the periodic lattices, can exist in perfectly ordered structures. Such structures can be described with high dimensional spaces. Recently, thermodynamically stable quasicrystals have been found and thus the interest for these materials has been increased. Basic questions are still opened as how the atoms are actually set in quasi-periodic materials, or what is the origin of their stability: entropic or not? We will describe how we can tackle some of these problems by numerical simulation, using numerical relaxation, molecular dynamics and Monte Carlo methods.
KeywordsAtomic Model Pair Potential Pair Correlation Function Penrose Tiling Quasiperiodic Structure
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