IDEAL AND DEFECTIVE VERTEX CONFIGURATIONS IN THE PLANAR OCTAGONAL QUASILATTICE

被引：41

作者：

BAAKE, M ^{[1
]}

JOSEPH, D ^{[1
]}

机构：

[1] UNIV TASMANIA,DEPT PHYS,HOBART,TAS 7001,AUSTRALIA

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.42.8091

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The well-known two-dimensional octagonal quasilattice is realized by means of dualization and Klotz construction. We discuss the geometric properties and the extended symmetry of the pattern. The concept of geometric defects is introduced, and an elastic energy measure E is presented that allows a simple sequencing of the forbidden vertices. After a sketchy comparison with Lennard-Jones calculations, some thermodynamic consequences of E are discussed. It turns out that the specific heat should show a significant increase in comparison with the crystallographic case. © 1990 The American Physical Society.

引用

页码：8091 / 8102

页数：12

共 38 条

[1] STRUCTURE AND REPRESENTATIONS OF THE HYPEROCTAHEDRAL GROUP [J].