MULTILAYER RELAXATION AND SURFACE-STRUCTURE OF ORDERED ALLOYS

被引:34
作者
KOBISTEK, RJ
BOZZOLO, G
FERRANTE, J
SCHLOSSER, H
机构
[1] ANALEX CORP, 3001 AEROSP PKY, BROOKPARK, OH 44142 USA
[2] VICTOREEN INC, SOLON, OH 44139 USA
[3] NASA, LEWIS RES CTR, CLEVELAND, OH 44135 USA
[4] CLEVELAND STATE UNIV, DEPT PHYS, CLEVELAND, OH 44115 USA
关键词
D O I
10.1016/0039-6028(94)90424-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Using BFS, a new semiempirical method for alloys, we study the surface structure of fcc ordered binary alloys in the L1(2) structure (Ni3Al and Cu3Au). We show that the surface energy is lowest for the mixed-composition truncation of the low-index faces of such systems. Also, we present results for the interlayer relaxations for planes close to the surface, revealing different relaxations for atoms of different species producing a rippled surface layer.
引用
收藏
页码:390 / 395
页数:6
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