Vacant-Site Octahedral Tilings on SrTiO3 (001), the (√13 x √13)R33.7° Surface, and Related Structures

被引：80

作者：

Kienzle, D. M. ^{[1
]}

Becerra-Toledo, A. E. ^{[1
]}

Marks, L. D. ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 17期

关键词：

SCANNING-TUNNELING-MICROSCOPY; ELECTRON-DIFFRACTION; STM; RECONSTRUCTIONS; MOLECULES; SUBSTRATE; GROWTH;

D O I：

10.1103/PhysRevLett.106.176102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The structure of the SrTiO3 (001) (root 13 x root 13)R33.7 degrees surface reconstruction has been determined using transmission electron diffraction combined with direct methods and density functional theory. It has a TiO2-rich surface with a 2D tiling of edge or corner-sharing TiO5 square octahedra. Additionally, different arrangements of these octahedral units at the surface, dictated by local bond- valence sums, form 2D networks that can account for many ordered surface reconstructions as well as disordered glasslike structures consistent with the multitude of structures observed experimentally, and potentially other materials and interfaces.

引用

页数：4

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