BACKREFLECTION XSW AND ARUPS STUDIES OF SB/GE(001)-2X1

被引：14

作者：

LESSMANN, A ^{[1
]}

DRUBE, W ^{[1
]}

MATERLIK, G ^{[1
]}

机构：

[1] DESY,HAMBURGER SYNCHROTRONSTRAHLUNGSLAB HASYLAB,D-22603 HAMBURG,GERMANY

来源：

SURFACE SCIENCE | 1995年 / 323卷 / 1-2期

关键词：

D O I：

10.1016/0039-6028(94)00640-7

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：

Ge(001) surfaces terminated with one monolayer of antimony were investigated by angular resolved UV photoelectron spectroscopy (ARUPS) and backreflection X-ray standing waves (XSW). The results obtained from double-domain surfaces confirm that the Sb atoms dimerize on this surface. From ARUPS measurements on single-domain surfaces a 90 degrees rotation of the (2 X 1) unit cell of the clean Ge(001)-2 x 1 surface is concluded. Using the backreflection XSW data, geometrical parameters of the adsorption geometry were derived, revealing also a contraction of the topmost Ge layers. The mean distance measured along the surface normal between the So atoms and the continuation of the bulk diffraction planes is (0.14 +/- 0.04) Angstrom.

引用

页码：109 / 117

页数：9

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