METALLIC PHASE WITH LONG-RANGE ORIENTATIONAL ORDER AND NO TRANSLATIONAL SYMMETRY
METALLIC PHASE WITH LONG-RANGE ORIENTATIONAL ORDER AND NO TRANSLATIONAL SYMMETRY
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DOI：
10.1103/physrevlett.53.1951
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发表时间：
1984-01-01
影响因子：
8.6
通讯作者：
CAHN, JW
中科院分区：
文献类型：
--
作者：
SHECHTMAN, D;BLECH, I;CAHN, JW
我们观察到一种具有长程取向有序的金属固体（Al-14-at.%-Mn），但具有二十面体点群对称，这与晶格平移不一致。它的衍射斑点像晶体一样尖锐，但不能指向任何布拉维晶格。固体是亚稳的，由熔体通过一阶转变形成。
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.