A SEXAFS STUDY OF THE P(2 X 2)-O/NI(111) SYSTEM

被引：14

作者：

HAASE, J

HILLERT, B

BECKER, L

PEDIO, M

机构：

[1] Fritz-Haber-Institut der Max-Planck-Gesellschaft, D-1000 Berlin 33

来源：

SURFACE SCIENCE | 1992年 / 262卷 / 1-2期

关键词：

D O I：

10.1016/0039-6028(92)90453-D

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：

Oxygen K-edge SEXAFS studies on the p(2 x 2)-O/Ni(111) system show that the O atoms are located in threefold coordinated fcc sites with a nearest-neighbour O-Ni bond length of 1.85 +/- 0.03 angstrom. The SEXAFS data are compatible with outward shifts of the three nearest-neighbour Ni atoms by up to 0.2 angstrom. It is shown that a possible outward shift of the three nearest-neighbour Ni atoms must be coupled with an inward shift of the next nearest-neighbour Ni atoms by roughly the same amount.

引用

页码：8 / 14

页数：7

共 25 条

[21] OXYGEN ON NI(111) - A MULTIPLE-SCATTERING ANALYSIS OF THE NEAR-EDGE X-RAY-ABSORPTION FINE-STRUCTURE [J].