ATOMIC-STRUCTURE OF CU ADLAYERS ON AU(100) AND AU(111) ELECTRODES OBSERVED BY INSITU SCANNING TUNNELING MICROSCOPY

被引：401

作者：

MAGNUSSEN, OM

HOTLOS, J

NICHOLS, RJ

KOLB, DM

BEHM, RJ

机构：

[1] Institut F̈r Kristallographie und Mineralogie, Universität M̈nchen, D-8000 M̈nchen 2

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.64.2929

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The atomic structure of ordered Cu adsorbate layers on Au(111) and Au(100) electrode surfaces and of the clean substrates was resolved in scanning tunneling microscopy images taken in situ. For submonolayer coverages deposited from sulfuric acid solutions under potential control, various ordered structures were observed. The quasihexagonal arrangement of Cu atoms in these structures reflects increasingly repulsive interactions between closely spaced Cu adatoms. These structures differ from the pseudomorphic Cu adlayer formed under vacuum conditions, which demonstrates the structure-determining role of the coadsorbed anions. © 1990 The American Physical Society.

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页码：2929 / 2932

页数：4

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