ADSORPTION SITE DETERMINATION BY MEANS OF SURFACE CORE-LEVEL SHIFT HIGH-ENERGY PHOTOELECTRON DIFFRACTION - PD(110)(2X1)P2MG-CO

被引：49

作者：

LOCATELLI, A ^{[1
]}

BRENA, B ^{[1
]}

LIZZIT, S ^{[1
]}

COMELLI, G ^{[1
]}

CAUTERO, G ^{[1
]}

PAOLUCCI, G ^{[1
]}

ROSEI, R ^{[1
]}

机构：

[1] SOC CONSORTILE AZIONI,SINCROTRONE TRIESTE,I-34012 TRIESTE,ITALY

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.73.90

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a novel application of the photoelectron diffraction method for determining the adsorption site of an adsorbate, based on the diffraction of high kinetic energy photoelectrons originating from the topmost layer of the substrate. Sensitivity to the topmost layer is achieved by working at grazing emission angle and by means of the adsorbate induced surface core level shift. A simple single scattering theory is shown to be adequate to interpret the data. We apply the method to the Pd{110} (2 x 1)p2mg-CO system and provide clear evidence that CO adsorbs in the short bridge sites.

引用

页码：90 / 93

页数：4

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