Dodecagonal quasicrystal in a polymeric alloy

被引：34

作者：

Dotera, T ^{[1
]}

Gemma, T

机构：

[1] Kyoto Univ, Kyoto 6158510, Japan

[2] Univ Tokyo, Tokyo 1538902, Japan

来源：

PHILOSOPHICAL MAGAZINE | 2006年 / 86卷 / 6-8期

关键词：

D O I：

10.1080/14786430500254875

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

We report the formation of an approximant of a dodecagonal quasicrystal in a quasi-two-dimensional lattice Monte Carlo simulation of a star-shaped three-component polymeric alloy. It is associated with the recent striking experimental manifestation of the complex Archimedean tiling (3(2).4.3.4) consisting of triangles and squares, related to the sigma phase in the Frank - Kasper family, but whose edge length is about 80 nm. The simulation box with periodic boundary conditions (128 x 128 x 10) can be regarded as the Stampfli inflation of the (3(2).4.3.4) tiling, an approximant of the dodecagonal quasicrystal. The corresponding edge length of deflated squares and triangles is thought to be about 300 nm. Furthermore, the phason dynamics of the deflated square - triangle tiling is observed at an elevated temperature.

引用

页码：1085 / 1091

页数：7

共 31 条

[1]

Direct observation of a local thermal vibration anomaly in a quasicrystal [J].