ATOMICALLY RESOLVED SURFACE-STRUCTURE OF LAB6(100)

被引：33

作者：

OZCOMERT, JS

TRENARY, M

机构：

[1] Department of Chemistry, University of Illinois at Chicago, Chicago

来源：

SURFACE SCIENCE | 1992年 / 265卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(92)90479-P

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：

We have used scanning tunneling microscopy to obtain atomically resolved images of the lanthanum terminated LaB6(100) surface. The surface atoms are observed to occupy a square lattice with a La-La separation of 4 angstrom. A weak corrugation between La atoms is observed which is consistent with the delocalized metal-like nature of the states near the Fermi level. On a larger scale, the surface is composed of (100) terraces with an average width of 125 angstrom separated by steps one unit cell high. Approximately 10% of the La sites on the terraces are vacant.

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页码：L227 / L232

页数：6

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