Disorder and epitaxy: Cr on Al{001}

被引：5

作者：

Kim, SK ^{[1
]}

Jona, F ^{[1
]}

Marcus, PM ^{[1
]}

机构：

[1] SUNY STONY BROOK,DEPT MAT SCI & ENGN,STONY BROOK,NY 11794

来源：

SURFACE SCIENCE | 1996年 / 349卷 / 02期

基金：

美国国家科学基金会;

关键词：

aluminum; chromium; epitaxy; low-energy electron diffraction (LEED);

D O I：

10.1016/0039-6028(95)00985-X

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：

Deposition of small amounts (about 1/2 of a monolayer) of Cr onto a clean Al{001} surface completely destroys the long-range order in the top 4 or 5 layers of the substrate, as shown by the absence of low-energy electron diffraction (LEED) spots. However, prolonged deposition of Cr produces films which are epitaxial and probably also pseudomorphic with the Al substrate as indicated by quantitative LEED analysis. This observation shows that long-range order of the substrate is not necessary for epitaxial growth of ultrathin metal films.

引用

页码：160 / 164

页数：5

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