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

被引：49
|
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
收藏
页码：L219 / L223
页数：5
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