ATOMIC MODEL OF DECAGONAL QUASI-CRYSTAL APPROXIMANTS AND PHASONS

被引：8

作者：

WIDOM, M

PHILLIPS, R

机构：

[1] Laboratory of Atomic and solid State Physics, Cornell University, Ithaca

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1993年 / 153卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0022-3093(93)90358-5

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We investigate the atomic structure of model decagonal quasicrystals, Periodic crystalline structures which share the local structure of the decagonal phase model may represent equilibrium phases to which the quasicrystal transforms at low temperatures. Rearrangements of atoms within the unit cells constitute a 'phason flip' and result in only modest alterations of the local structure. Reconstructed electron densities reveal double peaks which appear to correspond to these phason displacements.

引用

页码：282 / 287

页数：6

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