CHANGE IN ADSORPTION BOND-LENGTH WITH COVERAGE FOR K/AL(111)

被引：7

作者：

CHRISTENSEN, SV

NIELSEN, KT

NERLOV, J

BATCHELOR, DR

ADAMS, DL

机构：

[1] AARHUS UNIV, INST PHYS & ASTRON, DK-8000 AARHUS C, DENMARK

[2] UNIV COPENHAGEN, DEPT CHEM, DK-2100 COPENHAGEN O, DENMARK

来源：

SURFACE SCIENCE | 1995年 / 339卷 / 03期

关键词：

ALKALI METALS; PHOTOELECTRON DIFFRACTION; SURFACE RELAXATION AND RECONSTRUCTION;

D O I：

10.1016/0039-6028(95)80058-1

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 local bond geometry of K adsorbed on Al(111) at low temperature has been studied by photoelectron diffraction (PED) as a function of K coverage. It is found that K atoms occupy on-top sites in the coverage range 0.05-0.4 monolayer and that the K-AI bond length increases by 0.17 Angstrom over this coverage range. The reliability of this result is supported by FED studies of the (root 3 x root 3)R30 degrees structures formed by adsorption of one-third monolayer Na and K at 300 K, and K at 150 K, which give results in quantitative agreement with previous structure determinations by SEXAFS and LEED.

引用

页码：L919 / L924

页数：6

共 34 条

[1] INTERMIXING IN THE NA ON AL(111) SYSTEM [J].