Effect of oxygen deficiency on SrTiO3(001) surface reconstructions

被引：41

作者：

Shimizu, Ryota ^{[1
,2
]}

Iwaya, Katsuya ^{[1
]}

Ohsawa, Takeo ^{[1
]}

Shiraki, Susumu ^{[1
]}

Hasegawa, Tetsuya ^{[2
]}

Hashizume, Tomihiro ^{[1
,3
,4
]}

Hitosugi, Taro ^{[1
,5
]}

机构：

[1] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

[2] Univ Tokyo, Dept Chem, Tokyo 1130033, Japan

[3] Hitachi Ltd, Cent Res Lab, Saitama 3500395, Japan

[4] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[5] Japan Sci & Technol Agcy, PRESTO, Tokyo 1020076, Japan

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 26期

关键词：

THIN-FILM; SRTIO3(100); GROWTH; ION;

D O I：

10.1063/1.4730409

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The contribution of oxygen deficiencies to SrTiO3(001) surface reconstructions is studied using low-energy electron diffraction and scanning tunneling microscopy. We have prepared a SrTiO3 sample with spatially graded oxygen deficiencies, in which R33.7 degrees-(root 13 x root 13), (2 x 1), and R26.6 degrees -(root 5 x root 5) surface reconstructions are observed while increasing the amount of oxygen deficiencies. This indicates that oxygen nonstoichiometry has an influence on the formation of various surface reconstructions as one of the important factors. This concept is also applicable to other transition metal oxides to prepare atomically ordered surfaces in a reproducible manner. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4730409]

引用

页数：4

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