X-ray photoelectron diffraction in the backscattering geometry: A key to adsorption sites and bond lengths at surfaces

被引：35

作者：

Greber, T ^{[1
]}

Wider, J ^{[1
]}

Wetli, E ^{[1
]}

Osterwalder, J ^{[1
]}

机构：

[1] Univ Zurich Irchel, Inst Phys, CH-8057 Zurich, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.81.1654

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For a well-characterized (2 x 1)-1O adsorbate phase of oxygen on rhodium (II I) we have identified photoelectron interference fringes in the backscattering geometry for O Is adsorbate emission at 723 eV kinetic energy. Although these features are weak, they show up as characteristic rings covering large regions of the full hemispherical photoelectron diffraction pattern. They represent the situation of a simple two-atom electron interferometer and yield directly the most relevant information on the adsorbate geometry such as the adsorption site, the adsorbate-substrate bond length, and the bond angle. [S0031-9007(98)06936-1].

引用

页码：1654 / 1657

页数：4

共 19 条

[11] INTERPRETATION OF SUBSTRATE PHOTOELECTRON DIFFRACTION [J].