Landau theory of crystallization and self-assembly of octagonal quasicrystals

被引：0

作者：

Konevtsova, O. V. ^{[1
]}

Rochal, S. B. ^{[1
]}

Lorman, V. L. ^{[2
]}

机构：

[1] Southern Fed Univ, Rostov Na Donu 344006, Russia

[2] Univ Montpellier 2, CNRS, Lab Charles Coulomb, F-34095 Montpellier, France

来源：

PHYSICS OF THE SOLID STATE | 2013年 / 55卷 / 08期

关键词：

PERIODIC PATTERNS; SYMMETRY; CRYSTALLOGRAPHY; PHASE; ORDER; MODEL;

D O I：

10.1134/S1063783413080143

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The theory of crystallization of quasicrystal structures that does not use the concept of multidimensional crystallography for describing the quasicrystal order has been proposed. It has been shown using the structure of the MnSiAl octagonal quasicrystal as an example that the coordinates of the sites in the corresponding quasicrystal lattice can be calculated by conditional minimization of the Landau free energy. The abandonment of the unconditional minimization of the free energy has been justified by special features of the local atomic order in the considered structure. The proposed theory gives a new physical meaning to the traditional concepts of multidimensional crystallography and can also be used for explaining the formation of quasicrystal structures with other quasicrystal lattices.

引用

页码：1596 / 1601

页数：6

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