Discussion of phasons in quasicrystals and their dynamics

被引：28
|
作者：
Widom, M. [1 ]
机构：
[1] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA
来源：
PHILOSOPHICAL MAGAZINE | 2008年 / 88卷 / 13-15期
关键词：
phason; aperiodic materials; approximants; atomic dynamics; defects in solids; disorder; quasicrystals;
D O I：
10.1080/14786430802247163
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Phasons are a type of excitation peculiar to quasicrystals and other incommensurate phases arising as a consequence of their spatial quasiperiodicity. Phason-related excitations are also observed in complex crystal structures known as approximants. This article briefly reviews the concepts of phasons with focus on current issues in their regard. We examine both continuum (hydrodynamic) and discrete (tiling) descriptions of phasons and review the state of experimental validation of the basic theoretical notions.
引用
收藏
页码：2339 / 2350
页数：12
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