Structure analysis of SrTiO3 (111) polar surfaces

被引：19

作者：

Sekiguchi, S

Fujimoto, M

Kang, MG

Koizumi, S

Cho, SB

Tanaka, J

机构：

[1] Taiyo Yuden Co Ltd, Haruna, Gunma 3703334, Japan

[2] Yonsei Univ, Seodaemun Ku, Seoul 120749, South Korea

[3] Natl Inst Res Inorgan Mat, Tsukuba, Ibaraki 305, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1998年 / 37卷 / 07期

关键词：

strontium titanate; surface reconstruction; AFM; XPS; AES;

D O I：

10.1143/JJAP.37.4140

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The structure change of SrTiO3 (111) polar surfaces was studied as a function of atmosphere, by atomic force microscopy, Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS). The SrTiO3 (111) surfaces annealed in oxygen gas had a trench structure, while the surfaces annealed in argon gas formed large triangular terraces. The surfaces annealed in air, i.e., in intermediate oxygen partial pressure. consisted of complicated self-similar triangles with different sizes, forming a fractal shape called Sierpinski's gasket. The XPS analyses indicated that surface oxygen states were different depending on the annealing atmosphere.

引用

页码：4140 / 4143

页数：4

共 8 条

[1] Surface structures of MgO(100) and SrTiO3(100) as revealed by atomic force microscopy [J].