Rotational epitaxy vs missing row reconstruction: Au/Cu/Au(110)

被引：10

作者：

Hugenschmidt, MB ^{[1
]}

Ruff, M ^{[1
]}

Hitzke, A ^{[1
]}

Behm, RJ ^{[1
]}

机构：

[1] UNIV ULM, ABT OBERFLACHENCHEM & KATALYSE, D-89069 ULM, GERMANY

来源：

SURFACE SCIENCE | 1997年 / 388卷 / 1-3期

关键词：

copper; epitaxy; gold; ion scattering spectroscopy; reconstruction; sandwich structure; scanning tunneling microscopy; surface alloy formation;

D O I：

10.1016/S0039-6028(97)00470-6

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：

From scanning tunneling microscopy and ion scattering spectroscopy, it is found that Cu deposition on Au(110)-(1 x 2) at 300 K leads to a sandwich structure with Cu atoms occupying sites in the second layer and Au atoms on top. At around theta(Ca) = 1.3 ML a new, stable phase with s-shaped chains of Au atoms in the surface layer, slightly rotated with respect to [1(1) over bar0$], is formed. This phase can be considered as a case of rotational epitaxy on the strongly anisotropic fcc(110) surface. Energetic contributions responsible for its formation are discussed. (C) 1997 Elsevier Science B.V.

引用

页码：L1100 / L1106

页数：7

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