A mechanism for diffusion in quasicrystals
Within ten years after their discovery quasicrystals (QC) evolved from poor quality micron-sized grains to thermodynamically stable materials with structure coherence length as large as that in good crystals. The X-ray diffraction experiments give us today the intensities of hundreds of independent reflections. This would largely suffice to determine the structure of any crystalline metallic alloy, but our knowledge of the structure of QC is still far from being complete. Whatever the reasons for this situation may be, it might be useful to have an alternative source of structural information. The atomic diffusion, being strongly structure dependent, is of great interest from this point of view .
KeywordsEntropy Anisotropy Manifold Cage Hexagonal
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