二十面体对称
布拉维晶格
平移对称性
亚稳态
凝聚态物理
准晶
材料科学
格子（音乐）
衍射
短期订单
相变
对称（几何）
物理
晶体结构
结晶学
化学
量子力学
几何学
数学
声学
作者
D. Shechtman,I. A. Blech,D. Gratias,John W. Cahn
标识
DOI：10.1103/physrevlett.53.1951
摘要
We have observed a metallic solid (Al-14-at.%-Mn) with long-range orientational order, but with icosahedral point group symmetry, which is inconsistent with lattice translations. Its diffraction spots are as sharp as those of crystals but cannot be indexed to any Bravais lattice. The solid is metastable and forms from the melt by a first-order transition.
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