Surface defects and reconstruction instabilities in Au(001)

被引：10

作者：

González, MA ^{[1
]}

de la Figuera, J ^{[1
]}

de la Fuente, OR ^{[1
]}

Rojo, JM ^{[1
]}

机构：

[1] Univ Complutense, Dept Fis Mat, E-28040 Madrid, Spain

来源：

SURFACE SCIENCE | 1999年 / 429卷 / 1-3期

关键词：

gold; ion bombardment; radiation damage; scanning tunnelling microscopy; single crystal surfaces; surface defects; surface roughness; surface topography;

D O I：

10.1016/S0039-6028(99)00409-4

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：

Surface defects of a new type have been found on reconstructed Au(001) surfaces following 600-eV Ar+ ion bombardment. They appear as shallow areas 0.6 Angstrom deep, one short period of the reconstruction (14.4 Angstrom) wide. It is proposed that these defects are dislocation dipoles in the hexagonal reconstructed layer, originated by the collapse of surface vacancies. After higher ion doses, large patches of unreconstructed areas surrounded by perpendicular reconstruction domains, also caused by surface-vacancies-induced modifications of the reconstructed layer, are present. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：L486 / L491

页数：6

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