LEED and STM study of Cs on Cu(211)

被引：2

作者：

Caragiu, M

Seyller, T

Diehl, RD

Norris, AG

McGrath, R

Muryn, CA

机构：

[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[2] Univ Liverpool, Ctr Surface Sci, Liverpool L69 3BX, Merseyside, England

[3] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England

来源：

SURFACE REVIEW AND LETTERS | 1999年 / 6卷 / 05期

关键词：

D O I：

10.1142/S0218625X99000925

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：

A low-temperature (25 K) STM study of Cs adsorption on Cu(211) indicates that Cs forms variable-density structures which align along the step edges of the Cu(211) surface. The density of the overlayer increases with Cs coverage, forming a quasihexagonal c(2 x 2) structure at a coverage of 0.17. A dynamical LEED study of that structure at 130 K indicates that the Cs atoms are adsorbed on top of the Cu atoms in the center of the terraces, with a Cs-Cu nearest-neighbor distance of 3.56 +/- 0.04 Angstrom. This structure is accompanied by a significant rumpling of the Cu(211) surface.

引用

页码：865 / 870

页数：6