Macroscopic one-dimensional faceting of Si(100) upon Au adsorption

被引：24
|
作者：
Horn-von Hoegen, M
Minoda, H
Yagi, K
Heringdorf, FMZ
Kahler, D
机构：
[1] Leibniz Univ Hannover, Inst Festkorperforsch, D-30167 Hannover, Germany
[2] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 152, Japan
来源：
SURFACE SCIENCE | 1998年 / 402卷 / 1-3期
关键词：
faceting; gold; light diffraction; low energy electron diffraction (LEED); reflection electron microscopy (REM); silicon; surface energy; surface structure; morphology; roughness; and topography; vicinal single crystal surfaces;
D O I：
10.1016/S0039-6028(97)00989-8
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：
Vicinal Si(100) (4 degrees) shows perfectly ordered terraces with a width of 4 nm separated by double steps. Adsorption of Au at 800 degrees C results in a dramatic change of the step morphology: the surface decomposes into areas which are perfectly Bat with a (100)orientation and [119]-facets, which compensate the macroscopic miscut. Macroscopic super terraces with a width of 400 nm up to 4 mu m are formed, which are extremely straight with a length limited only by the size of the sample. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：464 / 469
页数：6
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