SrTiO3(001) reconstructions:: the (2 x 2) to c(4 x 4) transition

被引：50

作者：

Silly, Fabien ^{[1
]}

Newell, David T. ^{[1
]}

Castell, Martin R. ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

来源：

SURFACE SCIENCE | 2006年 / 600卷 / 17期

关键词：

scanning tunneling microscopy; surface relaxation and reconstruction; alkaline earth metals; titanium; surface structure; morphology; roughness; and topography; low index single crystal surfaces; surface defects;

D O I：

10.1016/j.susc.2006.05.043

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：

Scanning tunneling microscopy (STM) is used to investigate the (001) surface structure of Nb doped SrTiO3 single crystals annealed in ultra high vacuum (UHV). Atomically resolved images of the (2 x 2) reconstructed surface are obtained after annealing a chemically etched sample. With further annealing dotted row domains appear, which coexist with the (2 x 2) reconstruction. The expansion of these domains with further annealing gives rise to the formation of a TiO2 enriched c(4 x 4) reconstruction. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：L219 / L223

页数：5

共 51 条

[1] Surface and interface chemical composition of thin epitaxial SrTiO3 and BaTiO3 films:: Photoemission investigation [J].