SURFACE DIPOLE-MOMENTS FROM LEED INVESTIGATIONS

被引:11
作者
FRITZSCHE, V [1 ]
PENDRY, JB [1 ]
LOFFLER, U [1 ]
WEDLER, H [1 ]
MENDEZ, MA [1 ]
HEINZ, K [1 ]
机构
[1] UNIV ERLANGEN NURNBERG,LEHRSTUHL FESTKORPERPHYS,W-8520 ERLANGEN,GERMANY
关键词
D O I
10.1016/0039-6028(93)90670-F
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
Alkali adsorbates on transition metals have traditionally given Poor R factors for LEED theory/ experiment comparison. In this paper we postulate that at least part of the remaining discrepancy is due to the non-spherical potential caused by a dipole moment on the alkali atom. Inclusion of a dipole in the fitting procedure gives a reasonable magnitude for the dipole, and a location not far from the centre of the alkali. The R factor shows a substantial improvement.
引用
收藏
页码:389 / 396
页数:8
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