Ultra-thin MgO(111)-polar sheets grown onto Ag(111)

被引：8

作者：

Sarpi, B. ^{[1
]}

Daineche, R. ^{[1
]}

Girardeaux, C. ^{[1
]}

Hemeryck, A. ^{[2
,3
]}

Vizzini, S. ^{[1
]}

机构：

[1] Aix Marseille Univ, Fac Sci St Jerome, IM2NP, F-13397 Marseille, France

[2] CNRS LAAS, F-31400 Toulouse, France

[3] Univ Toulouse, LAAS, F-31400 Toulouse, France

来源：

APPLIED SURFACE SCIENCE | 2016年 / 361卷

关键词：

Oxide; STM; Polar surface; Thin films; MgO; SCANNING-TUNNELING-MICROSCOPY; FILMS; SPECTROSCOPY; DEPOSITION; OXIDATION; LAYERS; MODEL;

D O I：

10.1016/j.apsusc.2015.11.176

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：

An ultra-thin MgO film of two monolayers (ML) was successfully grown onto Ag(111) by repeating twice RT adsorption of Mg atomic monolayer, RT oxidation and 725K thermal annealing under UHV conditions. Using Auger electron spectroscopy, low electron energy diffraction and scanning tunneling microscopy/spectroscopy, we report here formation of MgO(1x1) and MgO(1x1)-R30 epitaxial layers, consistent with the growth of a MgO(111) polar film onto the silver surface and composed of patches having extended slight corrugation oriented along defined directions with respect to the substrate. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：259 / 264

页数：6

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