STRUCTURE OF AL3MN, AN ORTHORHOMBIC APPROXIMANT OF THE DECAGONAL QUASI-CRYSTAL

被引：47

作者：

LI, XZ ^{[1
]}

SHI, D ^{[1
]}

KUO, KH ^{[1
]}

机构：

[1] UNIV SCI & TECHNOL BEIJING,DEPT MAT SCI,BEIJING 100083,PEOPLES R CHINA

来源：

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 1992年 / 66卷 / 03期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1080/13642819208207653

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A structural model of the orthorhombic approximant Y-Al3Mn of the AlMn decagonal quasicrystal has been derived from another orthorhombic approximant pi-AlMn. There are 124 Al atoms and 32 Mn atoms, with a composition of Al3.88Mn, in a unit cell with a = 1.487 nm, b = 1.247 nm and c = 1.256 nm, satisfying the symmetry of the space group of Pnma (or Pn2(1)a after refinement made on single-crystal X-ray analysis). The calculated X-ray powder diffraction pattern agrees well with the experimental results. The high-resolution electron microscopy image of Y-Al3Mn has been correlated with the [010] structural projection along the pseudo-tenfold axis.

引用

页码：331 / 340

页数：10

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