Effect of water adsorption on microscopic friction force on SrTiO3(001)

被引：36

作者：

Iwahori, K

Watanabe, S

Kawai, M

Kobayashi, K

Yamada, H

Matsushige, K

机构：

[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[2] Kyoto Univ, Dept Elect Sci & Engn, Kyoto 6068501, Japan

[3] Sci Univ Tokyo, Dept Phys, Fac Sci, Shinjuku Ku, Tokyo 1628601, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2003年 / 93卷 / 06期

关键词：

D O I：

10.1063/1.1540223

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A friction force microscope study in ultrahigh vacuum was conducted on an atomically flat SrTiO3(001) surface, where SrO and TiO2 domains were distinguished by the difference in friction force. It is revealed that the friction on the SrO became stronger with water adsorption relative to the TiO2 layer. The selective change in friction is attributed to the chemical reaction occurring on the SrO layer, which is supported by the results of x-ray photoelectron spectroscopy. (C) 2003 American Institute of Physics.

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页码：3223 / 3227

页数：5

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