LOW-ENERGY ION-SCATTERING STUDY OF THE CU(110)(2X3)-N STRUCTURE

被引：31

作者：

ASHWIN, MJ

WOODRUFF, DP

机构：

[1] Physics Department, University of Warwick, Coventry

来源：

SURFACE SCIENCE | 1990年 / 237卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(90)90523-B

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 Cu(110)(2 × 3)-N structure has been investigated using the scattering of 3 keV Li+ and 2 keV He+ ions with a scattering angle of 150°. Li+→ Cu scattering shows clear evidence for substantial reconstruction of the substrate with an apparent reduction of the Cu-Cu spacing in the 〈100〉 azimuth but lengthening of the periodicity in 〈211〉. He+ → N scattering shows the N atoms visible in all the principal azimuths to grazing incidence favouring a N adsorption site above the surface. Many of the observations are found to be both qualitatively and quantitatively consistent with a reconstruction model in which a local Cu(110)(2 × 2)-N structure is formed on the Cu(110) substrate. References. © 1990.

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页码：108 / 115

页数：8

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