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A quasi-unit cell model for Al-Ni-Co Ideal Quasicrystal based on clusters with broken 10-fold symmetry

E. Abe·K. Saitoh·H. Takakura·A. P. Tsai·P. J. Steinhardt·H. -C. Jeong
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Abstract

We present new evidence supporting the quasi-unit cell description of the $Al_{72}Ni_{20}Co_{8}$ decagonal quasicrystal which shows that the solid is composed of repeating, overlapping decagonal cluster columns with broken 10-fold symmetry. We propose an atomic model which gives a significantly improved fit to electron microscopy experiments compared to a previous proposal by us and to alternative proposals with 10-fold symmetric clusters.

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E. Abe, K. Saitoh, H. Takakura, A. P. Tsai, P. J. Steinhardt, H. -C. Jeong. 1999-10-06. A quasi-unit cell model for Al-Ni-Co Ideal Quasicrystal based on clusters with broken 10-fold symmetry. https://doi.org/10.1103/physrevlett.84.4609

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