ONE-DIMENSIONAL RECONSTRUCTION OBSERVED ON FE3O4(110) BY SCANNING-TUNNELING-MICROSCOPY

被引：61

作者：

JANSEN, R

BRABERS, VAM

VANKEMPEN, H

机构：

[1] UNIV NIJMEGEN,INST MAT RES,6525 ED NIJMEGEN,NETHERLANDS

[2] EINDHOVEN UNIV TECHNOL,DEPT PHYS,5600 MB EINDHOVEN,NETHERLANDS

来源：

SURFACE SCIENCE | 1995年 / 328卷 / 03期

关键词：

IRON OXIDE; LOW ENERGY ELECTRON DIFFRACTION (LEED); LOW INDEX SINGLE CRYSTAL SURFACES; MAGNETIC SURFACES; SCANNING TUNNELING MICROSCOPY; SCANNING TUNNELING SPECTROSCOPIES; SURFACE RELAXATION AND RECONSTRUCTION; SURFACE STRUCTURE; MORPHOLOGY; ROUGHNESS; AND TOPOGRAPHY;

D O I：

10.1016/0039-6028(95)00173-5

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 (110) surface of magnetite Fe3O4 single crystals was studied by scanning tunneling microscopy (STM), A clean and regular surface was obtained after sputtering and annealing at 1200 K. This preparation procedure resulted in a one-dimensional reconstruction consisting of rows running in the (<(1)over bar10>) direction. The row spacing was found to vary on different terraces, where the most frequent row separation was determined to be 25 Angstrom. Current-versus-voltage curves display a transition from semiconducting to metallic character when the tip-sample distance is reduced. These results,together with complementary low energy electron diffraction (LEED) measurements, are compared with a bulk termination of FE(3)O(4) and the other known iron-oxide phases.

引用

页码：237 / 247

页数：11

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