Electronic contrast in scanning tunneling microscopy of Sn-Pt(111) surface alloys

被引：45

作者：

Batzill, M ^{[1
]}

Reck, DE ^{[1
]}

Koel, BE ^{[1
]}

机构：

[1] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA

来源：

SURFACE SCIENCE | 2000年 / 466卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

alloys; low index single crystal surfaces; platinum; scanning tunneling microscopy; surface electronic phenomena (work function; surface potential; surface states; etc.); tin;

D O I：

10.1016/S0039-6028(00)00803-7

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：

Scanning tunneling microscopy studies of mixed domain p(2 x 2) and (root3 x root3)R30 degrees tin-platinum surface alloys are presented. It was found that the apparent height of Pt ensembles increases with a decreasing number of Sn next-neighbor atoms per Pt atom. This is explained by a reduction of the local density of states near the Fermi level at Pt sites due to the effects of alloying of Pt with Sn. (C) 2000 Elsevier Science B.V. All rights reserved.

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页码：L821 / L826

页数：6

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