SrTiO3(001) surface structures under oxidizing conditions

被引：51

作者：

Erdman, N ^{[1
]}

Marks, LD ^{[1
]}

机构：

[1] Northwestern Univ, Inst Environm Catalysis, Dept Mat Sci & Engn, Evanston, IL 60208 USA

来源：

SURFACE SCIENCE | 2003年 / 526卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

surface relaxation and reconstruction; faceting; surface structure; morphology; roughness; and topography; single crystal surfaces; surface defects;

D O I：

10.1016/S0039-6028(02)02573-6

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：

The thermodynamically stable (2 x 1), c(4 x 2) and c(6 x 2) surface structures were obtained under oxidative conditions on the SrTiO3(0 0 1) surface and studied with transmission electron microscopy. All three reconstructed surfaces exhibit similar morphological features formation of flat (10 0) facets on the surface, stabilization of (I 10) originally polar facets as well as the existence of surface defects in a form of subsurface voids. The consistency and high reproducibility of our results suggest construction of a phase diagram for the formation of different structures on the SrTiO3 (0 0 1) surface as a function of annealing temperature. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：107 / 114

页数：8

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