A combined SPALEED and helium-atom diffraction investigation of the structure of oxidized Cu(001)

被引：8
|
作者：
Meyer, G [1 ]
Range, H [1 ]
Toennies, JP [1 ]
机构：
[1] MAX PLANCK INST STROMUNGSFORSCH,D-37073 GOTTINGEN,GERMANY
来源：
SURFACE SCIENCE | 1997年 / 371卷 / 2-3期
关键词：
atom solid scattering and diffraction elastic; copper; copper oxides; low energy electron diffraction (LEED); low index single crystal surfaces; molecule-solid reactions; oxidation; oxygen; surface structure; morphology; roughness; and topography;
D O I：
10.1016/S0039-6028(96)01092-8
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：
The structure of the oxidized Cu(001) surface has been investigated at room temperature using spot profile analysis LEED (SPALEED) and helium-atom diffraction. In both measurements the observed 1/4-order diffraction spots of the (2 root 2 x root 2)R45 degrees structure show a splitting which is attributed to a large number of small. translationally displaced domains. Extensive Eikonal simulations of the helium atom results indicate that [3/2,1/2,0]a translational domain displacements are preferred. Evidence for areas with different lattice constants is also presented.
引用
收藏
页码：183 / 199
页数：17
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