EQUILIBRIUM FACETING SHAPE OF QUASI-CRYSTALS AT LOW-TEMPERATURES - CLUSTER MODEL

被引：10

作者：

LEI, T ^{[1
]}

HENLEY, CL ^{[1
]}

机构：

[1] BOSTON UNIV, DEPT PHYS, BOSTON, MA 02215 USA

来源：

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 1991年 / 63卷 / 03期

关键词：

D O I：

10.1080/13642819108225979

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate the zero-temperature equilibrium crystal shape (ECS), in a model specialized for the atomic structures of known icosahedral alloys such as Al-Cu-Li and Al-Cu-Fe. We use the approximations of assuming a cluster model of the atomic structure, taking a lattice-gas description of the interface and representing the non-periodic structure by a large cubic cell (rational approximant) of 32 clusters. We find that the facets normal to the fivefold and twofold icosahedral symmetry directions dominate the ECS, with additional smaller facets normal to the threefold directions.

引用

页码：677 / 685

页数：9

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