Structure of vicinal surfaces of alloys: Cu-Pd(17%)(115)

被引：3
作者：
Le Goff, E
Arfaoui, I
Barbier, L [1 ]
Loiseau, A
Salanon, B
机构：
[1] CEA Saclay, SPCSI, DRECAM, DSM, F-91191 Gif Sur Yvette, France
[2] Off Natl Etud & Rech Aerosp, LEM, F-92322 Chatillon, France
来源：
SURFACE SCIENCE | 2001年 / 481卷 / 1-3期
关键词：
scanning tunneling microscopy; surface structure; morphology; roughness; and topography; step formation and bunching; copper; palladium; alloys; vicinal single crystal surfaces;
D O I：
10.1016/S0039-6028(01)01042-1
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：
An even single step structure is observed by scanning tunneling microscopy for the Cu-Pd(17%)(1 1 5) surface in the chemically ordered phase. This is in contrast with the paired step structure of vicinals of (0 0 1) and (1 1 0) surfaces with higher average step-step distance of A(3)B L1(2) alloys. The three possible structures for vicinal surfaces involving steps and subsurface antiphase boundaries (APBs) are compared. The observation of a paired step structure for Cu-Pd(17%)(1 1 11) and of a single step structure for (1 1 5) allows estimating the subsurface APB energy. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：215 / 225
页数：11
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