COADSORPTION OF AU AND AG ATOMS ON THE SI(111) SURFACE

被引：33

作者：

GAVRILJUK, YL

LIFSHITS, VG

ENEBISH, N

机构：

[1] Institute of Automation and Control Processes, Far East Scientific Center, the Russian Academy of Sciences, 690041 Vladivostok

来源：

SURFACE SCIENCE | 1993年 / 297卷 / 03期

关键词：

D O I：

10.1016/0039-6028(93)90222-6

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：

A three-component surface phase formed by codeposition of Au and Ag on Si(111) has been studied with Auger electron spectroscopy (AES) and low-energy electron diffraction (LEED). It has been shown that if the amount of silver atoms on the surface exceeds a certain value (which is dependent on the Au amount on the Si surface), two types of three-component surface structures may form. In case theta(Au) < 1/3 ML a solid solution of Au atoms in the Si(111)square-root 3-Ag superlattice is formed; when theta(Au) > 1/3 ML the Si(111)square-root 21-(Au, Ag) structure is observed.

引用

页码：345 / 352

页数：8

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