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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
收藏
页码：13119 / 13122
页数：4
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