COMPUTER-SIMULATION OF MEDIUM-RANGE ORDER IN AMORPHOUS TRANSITION-METAL-METALLOID ALLOYS

被引：20

作者：

HAUSLEITNER, C

HAFNER, J

BECKER, C

机构：

[1] Institut für Theoretische Physik, Technische Universität Wien, A-1040 Wien

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.48.13119

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present molecular-dynamics investigations of medium-range ordering in amorphous transition-metal-metalloid alloys based on interatomic forces derived from tight-binding-bond theory. We demonstrate that the small-angle scattering observed in Fe-rich FexB100-x alloys (x > 75) arises from B-enriched regions of approximate composition Fe75B25 embedded in an Fe matrix. The formation of B-enriched regions is due to the strong covalent Fe-d-B-p bond.

引用

页码：13119 / 13122

页数：4