SrTiO3(001)-c(6x2): A long-range, atomically ordered surface stable in oxygen and ambient air

被引：57

作者：

Jiang, QD ^{[1
]}

Zegenhagen, J ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,D-70569 STUTTGART,GERMANY

来源：

SURFACE SCIENCE | 1996年 / 367卷 / 02期

关键词：

low energy electron diffraction (LEED); low index single crystal surfaces; scanning tunneling microscopy; stepped single crystal surfaces; strontium titanate; surface structure; morphology; roughness; and topography;

D O I：

10.1016/S0039-6028(96)00990-9

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：

We report about a new reconstruction of the SrTiO3(001) surface which exhibits a c(6 x 2) unit cell, shows remarkable long range order, covers the entire surface exclusively and is stable in O-2 and even in ambient air. It is generated by a combination of oxygen and UHV annealing and characterized by low energy electron diffraction and atomically resolved scanning tunneling microscopy. Two rotationally equivalent domains of this reconstruction exist on the (001) surface, which exhibits fourfold symmetry. However, the c(6 x 2) structure can be stabilized as single domain on vicinal(001) surfaces.

引用

页码：L42 / L46

页数：5

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