STM study of oxygen-adsorbed TiC(111) surface

被引：13

作者：

Ahn, J ^{[1
]}

Kawanowa, H ^{[1
]}

Souda, R ^{[1
]}

机构：

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

来源：

SURFACE SCIENCE | 1999年 / 429卷 / 1-3期

关键词：

scanning tunneling microscopy; surface structure; morphology; roughness; and topography; titanium carbide;

D O I：

10.1016/S0039-6028(99)00397-0

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：

The surfaces of TiC(111) and TiC(111)-(root 3 x root 3)R30-O were investigated using scanning tunneling microscopy (STM), low-energy electron diffraction (LEED) and DV-X alpha calculation. Atomically resolved STM images of an oxygen-adsorbed surface were observed to have bright spots with a (root 3 x root 3)R30 periodicity. The STM image contrast was invariant with respect to the polarity of the sample bias voltage. The STM images and the calculation results are discussed in terms of surface geometry and local electronic state. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：338 / 344

页数：7

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