Adsorption of O2 on Ag(111): Evidence of Local Oxide Formation

被引：27

作者：

Andryushechkin, B. V. ^{[1
]}

Shevlyuga, V. M. ^{[1
]}

Pavlova, T. V. ^{[1
]}

Zhidomirov, G. M. ^{[1
,2
]}

Eltsov, K. N. ^{[1
]}

机构：

[1] Russian Acad Sci, AM Prokhorov Gen Phys Inst, Ulitsa Vavilova 38, Moscow 119991, Russia

[2] Russian Acad Sci, Siberian Branch, GK Boreskov Inst Catalysis, Prospect Lavrentieva 5, Novosibirsk 630090, Russia

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

THERMAL-DECOMPOSITION; OXYGEN; SURFACE; ATOMS; FILM;

D O I：

10.1103/PhysRevLett.117.056101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The atomic structure of the disordered phase formed by oxygen on Ag(111) at low coverage is determined by a combination of low-temperature scanning tunneling microscopy and density functional theory. We demonstrate that the previous assignment of the dark objects in STM to chemisorbed oxygen atoms is incorrect and incompatible with trefoil-like structures observed in atomic-resolution images in current work. In our model, each object is an oxidelike ring formed by six oxygen atoms around the vacancy in Ag(111).

引用

页数：5

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