Observation of domain structure and coarsening at Cu-Pd alloy vicinal surfaces

被引：12
作者：
Goapper, S [1 ]
Barbier, L
Salanon, B
Loiseau, A
Torrelles, X
机构：
[1] CEA Saclay, Serv Rech Surfaces & Irradiat Mat, F-91191 Gif Sur Yvette, France
[2] Off Natl Etud & Rech Aerosp, CNRS, Lab Etud Microstruct, F-92322 Chatillon, France
[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France
来源：
PHYSICAL REVIEW B | 1998年 / 57卷 / 19期
关键词：
D O I：
10.1103/PhysRevB.57.12497
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The morphology of a vicinal surface of an A(3)B-type ordered alloy [Cu83Pd17(1,1,11)] is investigated by STM and He diffraction. In the ordered state of the alloy, domains with paired steps are observed and STM images reveal the link between the surface structure and the chemically ordered underlying domains. The surface domain size grows during aging as t(1/2). The activation energy for this coarsening process is found to be 2.2 eV. This value is close to the one obtained for bulk ordering.
引用
收藏
页码：12497 / 12500
页数：4
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